Table of Contents
- Safety
- Chapter 1. Introduction
- Chapter 2. Server components
- Chapter 3. Hardware replacement procedures
- Installation guidelines
- CMOS battery (CR2032) replacement
- DIMM replacement
- Drive replacement
- Dual SD card adapter replacement
- Fan replacement
- Flash power module replacement
- Front bezel replacement
- Front panel replacement
- Heat sink and fan module replacement
- Intrusion switch replacement
- PCIe adapter replacement
- Power supply unit replacement
- Processor replacement
- Server cover replacement
- System board replacement
- Thermal sensor replacement
- Complete the parts replacement
- Chapter 4. Problem determination
- Appendix A. Getting help and technical assistance
- Appendix B. Notices
- Index
Lenovo ST50 User Manual
Displayed below is the user manual for ST50 by Lenovo which is a product in the Servers category. This manual has pages.
Related Manuals
ThinkSystem ST50
Maintenance Manual
Machine Types: 7Y48 and 7Y49
Note
Before using this information and the product it supports, be sure to read and understand the safety
information and the safety instructions, which are available at:http://thinksystem.lenovofiles.com/help/topic/
safety_documentation/pdf_files.html
In addition, ensure that you are familiar with the terms and conditions of the Lenovo warranty for your server,
which can be found at:http://datacentersupport.lenovo.com/warrantylookup
Eleventh Edition (May 2020)
© Copyright Lenovo 2018, 2020.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration (GSA) contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925.
Contents
Safety . . . . . . . . . . . . . . . . . . iii
Safety inspection checklist . . . . . . . . . . . iv
Chapter 1. Introduction . . . . . . . . . 1
Server form factor . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . 2
Update the firmware . . . . . . . . . . . . . . 6
Tech Tips . . . . . . . . . . . . . . . . . . 6
Security advisories . . . . . . . . . . . . . . 6
Power on the server . . . . . . . . . . . . . . 7
Power off the server . . . . . . . . . . . . . . 7
Chapter 2. Server components . . . . . 9
Front view . . . . . . . . . . . . . . . . . . 9
Front panel . . . . . . . . . . . . . . . . 9
Rear view . . . . . . . . . . . . . . . . . 10
System board components . . . . . . . . . . 13
System board jumpers . . . . . . . . . . . . 13
Dual SD card adapter module . . . . . . . . . 14
Internal cable routing. . . . . . . . . . . . . 15
Cable routing for drive bay 1-3 . . . . . . . 15
Cable routing for drive bay 4 . . . . . . . . 17
Cable routing for the RAID adapter and
drives . . . . . . . . . . . . . . . . . 19
Cable routing for the power supply unit . . . . 21
Cable routing for the fans . . . . . . . . . 22
Cable routing for the front panel. . . . . . . 22
Cable routing for the thermal sensor . . . . . 24
Parts list. . . . . . . . . . . . . . . . . . 24
Power cords . . . . . . . . . . . . . . 27
Chapter 3. Hardware replacement
procedures . . . . . . . . . . . . . . . 29
Installation guidelines . . . . . . . . . . . . 29
System reliability guidelines . . . . . . . . 30
Handling static-sensitive devices . . . . . . 31
CMOS battery (CR2032) replacement . . . . . . 31
Remove the CMOS battery . . . . . . . . 31
Install the CMOS battery . . . . . . . . . 33
DIMM replacement . . . . . . . . . . . . . 35
Remove a DIMM. . . . . . . . . . . . . 35
DIMM installation rules . . . . . . . . . . 36
Install a DIMM . . . . . . . . . . . . . 38
Drive replacement . . . . . . . . . . . . . . 40
Simple-swap drive replacement (bay 1-3) . . . 41
Optical/tape drive or drive adapter
replacement (bay 4) . . . . . . . . . . . 49
Dual SD card adapter replacement . . . . . . . 63
Remove the dual SD card adapter . . . . . . 63
Install the dual SD card adapter. . . . . . . 66
Fan replacement . . . . . . . . . . . . . . 69
Remove the front fan . . . . . . . . . . . 69
Install the front fan . . . . . . . . . . . . 70
Remove the rear fan . . . . . . . . . . . 72
Install the rear fan . . . . . . . . . . . . 74
Flash power module replacement . . . . . . . . 75
Remove the flash power module . . . . . . 75
Install the flash power module . . . . . . . 78
Front bezel replacement . . . . . . . . . . . 81
Remove the front bezel . . . . . . . . . . 81
Install the front bezel . . . . . . . . . . . 83
Front panel replacement . . . . . . . . . . . 84
Remove the front panel . . . . . . . . . . 84
Install the front panel . . . . . . . . . . . 86
Heat sink and fan module replacement. . . . . . 88
Remove the heat sink and fan module . . . . 88
Install the heat sink and the fan module. . . . 90
Intrusion switch replacement . . . . . . . . . 94
Remove the intrusion switch . . . . . . . . 94
Install the intrusion switch . . . . . . . . . 95
PCIe adapter replacement. . . . . . . . . . . 97
Remove a PCIe adapter . . . . . . . . . . 97
Install a PCIe adapter . . . . . . . . . . . 100
Power supply unit replacement. . . . . . . . . 103
Remove the power supply unit . . . . . . . 103
Install the power supply unit . . . . . . . . 106
Processor replacement . . . . . . . . . . . . 109
Remove the processor . . . . . . . . . . 109
Install the processor . . . . . . . . . . . 111
Server cover replacement . . . . . . . . . . . 113
Remove the server cover . . . . . . . . . 113
Install the server cover . . . . . . . . . . 115
System board replacement . . . . . . . . . . 117
Remove the system board (trained technician
only) . . . . . . . . . . . . . . . . . 117
Install the system board (trained technician
only) . . . . . . . . . . . . . . . . . 119
Thermal sensor replacement. . . . . . . . . . 121
Remove the thermal sensor . . . . . . . . 122
Install the thermal sensor . . . . . . . . . 123
Complete the parts replacement . . . . . . . . 124
Chapter 4. Problem
determination . . . . . . . . . . . . . 125
© Copyright Lenovo 2018, 2020 i
Event logs . . . . . . . . . . . . . . . . . 125
General problem determination procedures . . . . 125
List of POST error messages . . . . . . . . 126
Resolving suspected power problems . . . . 129
Resolving suspected Ethernet controller
problems . . . . . . . . . . . . . . . 129
Troubleshooting by symptom . . . . . . . . . 130
Power on and power off problems . . . . . . 130
Memory problems . . . . . . . . . . . . 131
Hard disk drive problems . . . . . . . . . 132
Monitor and video problems . . . . . . . . 133
Keyboard, mouse, or USB-device
problems . . . . . . . . . . . . . . . 134
Optional-device problems . . . . . . . . . 135
Intermittent problems. . . . . . . . . . . 137
Network problems . . . . . . . . . . . . 137
Observable problems. . . . . . . . . . . 138
Software problems. . . . . . . . . . . . 140
Appendix A. Getting help and
technical assistance . . . . . . . . . . 141
Before you call . . . . . . . . . . . . . . . 141
Contacting Support . . . . . . . . . . . . . 142
Appendix B. Notices. . . . . . . . . . 143
Trademarks . . . . . . . . . . . . . . . . 144
Important notes . . . . . . . . . . . . . . . 144
Particulate contamination . . . . . . . . . . . 144
Telecommunication regulatory statement. . . . . 145
Electronic emission notices . . . . . . . . . . 145
Taiwan BSMI RoHS declaration . . . . . . . 146
Taiwan import and export contact information . . . 146
Index . . . . . . . . . . . . . . . . . . 147
ii ThinkSystem ST50 Maintenance Manual
Safety
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
在安装本产品之前，请仔细阅读 Safety Information （安全信息）。
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d'installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Antes de instalar este produto, leia as Informações sobre Segurança.
© Copyright Lenovo 2018, 2020 iii
Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
Safety inspection checklist
Use the information in this section to identify potentially unsafe conditions with your server. As each machine
was designed and built, required safety items were installed to protect users and service technicians from
injury.
Important: Electrical grounding of the server is required for operator safety and correct system function.
Proper grounding of the electrical outlet can be verified by a certified electrician.
Make sure all power cords are disconnected from the system when reading the following step in
this manual: “Turn off the server and peripheral devices and disconnect the power cords and all
external cables.”
CAUTION:
This equipment must be installed by trained service personnel, as defined by the NEC and IEC 60950-
1, Second Edition, the standard for Safety of Information Technology Equipment. Lenovo assumes you
are qualified in the servicing of equipment and trained in recognizing hazards in products with
hazardous energy levels.
Use the following checklist to verify that there are no potentially unsafe conditions:
1. Make sure that the power is off and the power cord is disconnected.
2. Check the power cord.
• Make sure that the third-wire ground connector is in good condition. Use a meter to measure third-
wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.
• Make sure that the power cord is the correct type.
To view the power cords that are available for the server:
a. Go to:
iv ThinkSystem ST50 Maintenance Manual
http://dcsc.lenovo.com/#/
b. In the Customize a Model pane:
1) Click Select Options/Parts for a Model.
2) Enter the machine type and model for your server.
c. Click the Power tab to see all line cords.
• Make sure that the insulation is not frayed or worn.
3. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo
alterations.
4. Check inside the server for any obvious unsafe conditions, such as metal filings, contamination, water or
other liquid, or signs of fire or smoke damage.
5. Check for worn, frayed, or pinched cables.
6. Make sure that the power-supply cover fasteners (screws or rivets) have not been removed or tampered
with.
© Copyright Lenovo 2018, 2020 v
vi ThinkSystem ST50 Maintenance Manual
Chapter 1. Introduction
The ThinkSystem ST50 server is a 4U tower server designed for performance and expansion for various IT
workloads. With the modular design, the server is flexible to be customized for maximum storage capacity or
high storage density with selectable input/output options and tiered system management.
Performance, ease of use, reliability, and expansion capabilities were key considerations in the design of the
server. These design features make it possible for you to customize the system hardware to meet your needs
today and provide flexible expansion capabilities for the future.
The server comes with a limited warranty. For details about the warranty, see:https://support.lenovo.com/us/
en/solutions/ht503310
For details about your specific warranty, see:http://datacentersupport.lenovo.com/warrantylookup
Identifying your server
When you contact Lenovo for help, the machine type and serial number information helps support
technicians to identify your server and provide faster service.
The machine type and serial number are on the ID label on the front of the server.
The following illustration shows the location of the ID label.
Note: The illustrations in this document might differ slightly from your server.
Figure 1. Location of the ID label
© Copyright Lenovo 2018, 2020 1
Quick response code
The system service label, which is on the inside of the server cover, provides a quick response (QR) code for
mobile access to service information. Scan the QR code with a mobile device and a QR code reader
application to get quick access to the Lenovo Service web site for this server. The Lenovo Service web site
provides additional information for parts installation and replacement videos, and error codes for server
support.
The following illustration shows the QR code.
Figure 2. QR code
Server form factor
The ThinkSystem ST50 server is designed to support both tower and rack form factors.
You can change the server from tower form factor to rack form factor by installing the tower-to-rack
conversion kit. For instructions on how to install the tower-to-rack conversion kit, refer to the documentation
that comes with the conversion kit.
Specifications
The following information is a summary of the features and specifications of the server. Depending on the
model, some features might not be available, or some specifications might not apply.
Table 1. Specifications, Type 7Y48 and 7Y49
Specification Description
Dimension 4U server
• Height: 375 mm (14.76 inches)
• Width: 175 mm (6.89 inches)
• Depth: 407 mm (16.02 inches)
Weight (depending on the
configuration)
• Maximum: 11.2 kg (24.69 lbs)
Processor This server supports one of the following Intel® processors:
• Xeon® E3–21XX
• Xeon® E3–22XX
• Core i3
• Pentium Gold
• Celeron G
For a list of supported processors, see: http://datacentersupport.lenovo.com
2ThinkSystem ST50 Maintenance Manual
Table 1. Specifications, Type 7Y48 and 7Y49 (continued)
Specification Description
Memory • Minimum: 8 GB
• Maximum: 64 GB
• DIMM types:
– ECC UDIMM
– 8 GB 1RX8 PC-4-2666E 8 Gbit ECC UDIMM
– 16 GB 2RX8 PC-4-2666E 8 Gbit ECC UDIMM
– Non-ECC UDIMM
– 4 GB 1RX16 PC-4-2666U 8 Gbit Non-ECC UDIMM
– 8 GB 1RX8 PC-4-2666U 8 Gbit Non-ECC UDIMM
– 16 GB 2RX8 PC-4-2666U 8 Gbit Non-ECC UDIMM
Notes:
– Non-ECC UDIMM is only supported in Chinese Mainland.
– ECC and non-ECC cannot be mixed.
• Slots: four DIMM slots (two channels, two DIMMs per channel)
Storage expansion Four drive bays and one optional USB dual SD card adapter are available for storage
expansion and support the following types of drives:
• Bay 1 to 3 support the following:
– 3.5-inch hard-disk or solid-state drives
– 2.5-inch hard-disk or solid-state drives (in 3.5 to 2.5-inch drive bay adapter)
• Bay 4 supports the following:
– One half-height optical disk drive
– One LTO/RDX tape drive
Notes:
– Before installing the LTO tape drive, make sure to purchase the corresponding
optional tape drive cable kit.
– Different storage configurations require different cooling settings. See
“Acoustic/Thermal optimal performance” in the ThinkSystem ST50 Setup
Guide.
– One drive bay adapter for hard-disk/solid-state drive
– One drive bay adapter for hard-disk/solid-state drive and slim optical drive
• USB dual SD card adapter supports two SD card with the following capacities:
– 32 GB
– 64 GB
Note: The dual SD card adapter does not support hot-swap. Make sure to power off
the server before installing or removing this adapter.
Expansion slots Three PCIe expansion slots are available:
• Slot 1: PCI Express 3.0 x16
• Slot 2: PCI Express 3.0 x1
• Slot 3: PCI Express 3.0 x4
Integrated functions • Six universal serial bus (USB) connectors
– Two USB 3.1 Gen1 connectors on the front
– Four USB connectors on the rear:
– Two USB 3.1 Gen1 connectors
– Two USB 2.0 connectors
• One serial connector
• One Line Out connector
• Two DisplayPort connectors
Notes: Dual DisplayPort output will only work in the following conditions:
– Windows based OS: Intel VGA driver is installed.
– Linux (Red Hat 7.5 OS): kernel/boot parameters "i915.alpha_support=1" is added.
Chapter 1.Introduction 3
Table 1. Specifications, Type 7Y48 and 7Y49 (continued)
Specification Description
Network One 1 Gbps RJ-45 Ethernet connector with Intel I219-LM
Note: Different network card configurations require different cooling settings. See
“Acoustic/Thermal optimal performance” in the ThinkSystem ST50 Setup Guide.
Systems management • Intel® Active Management Technology (AMT) 12
• XClarity Provisioning Manager Lite (optional)
Notes:
• Make sure the power is on when executing remote access and power policy setup.
• Ignore the warning message “Unrecoverable PS/2 or USB keyboard failure,” because
the system does not support PS/2 devices.
• Some Lenovo systems management applications, including XClarity Administrator,
XClarity Controller, XClarity Energy Manager, and XClarity Essentials, are not
supported by ST50.
RAID (depending on model) The following options with RAID levels 0, 1, and 5 are available for this server. In
addition, RAID level 10 is available when four drives are installed in the server.
• ThinkSystem 430-8i SAS/SATA 12Gb HBA
• ThinkSystem RAID 530-8i PCIe 12Gb adapter
• ThinkSystem RAID 730-8i 1GB cache PCIe 12Gb adapter
• ThinkSystem RAID 930-8i 2GB flash PCIe 12Gb adapter
• ThinkSystem 430-8e SAS/SATA 12Gb HBA
• ThinkSystem RAID 930-8e 4GB flash PCIe 12Gb adapter
For a list of supported adapters, see: http://datacentersupport.lenovo.com
Notes:
• Managing these optional RAID/HBA adapters in Setup Utility requires CSM to be
disabled. Go to Startup, and click on CSM to disable it. After CSM is disabled, RAID/
HBA ROM will be present in Devices tab in Setup Utility.
• Refer to “Suspected RAID volume failure” on page 133 to resolve RAID volume failure
in the case of ThinkSystem RAID adapter virtual driver failure.
• Different RAID adapter configurations require different cooling settings. See
“Acoustic/Thermal optimal performance” in the ThinkSystem ST50 Setup Guide.
GPGPU adapter The following option GPGPU adapter is available for this server:
• ThinkSystem NVIDIA Quadro P620 2GB PCIe Active GPU
Notes:
• This GPGPU adapter supports 4K resolution.
• It is recommend to use certified display adapter cables.
Fans This server supports three fans:
• One on the front
• One on the rear
• One on the heat sink
Electrical input This server supports one of the following non-hot-swap, non-redundant power supplies:
• 250-watt Platinum
– input power 115V or 230V ac
• 400-watt Bronze
– input power 115V or 230V ac
4ThinkSystem ST50 Maintenance Manual
Table 1. Specifications, Type 7Y48 and 7Y49 (continued)
Specification Description
Minimal configuration • One processor
• One 8 GB ECC UDIMM in slot 1
• One power supply
• One HDD/SSD
• Power cord
• Two system fans (front and rear)
Acoustical noise emissions • Sound power level
– Idle
– minimum: 2.9 bels
– typical: 3.4 bels
– maximum: 4.6 bels
– Operating
– minimum: 2.9 bels
– typical: 3.4 bels
– maximum: 4.6 bels
• Sound pressure level (tabletop)
– Idle
– minimum: 17.3 dBA
– typical: 25.3 dBA
– maximum: 36.7 dBA
– Operating
– minimum: 17.1 dBA
– typical: 25.6 dBA
– maximum: 37.2 dBA
• Sound pressure level (floor)
– Idle
– minimum: 15.2 dBA
– typical: 18.4 dBA
– maximum: 29.3 dBA
– Operating
– minimum: 15.1 dBA
– typical: 19.5 dBA
– maximum: 29.5 dBA
Notes:
1. These sound levels were measured in controlled acoustical environments according
to procedures specified by ISO 7779 and are reported in accordance with ISO
9296.
2. The declared acoustic noise levels are based on specified configurations, which
may change slightly depending on configuration/conditions.
Chapter 1.Introduction 5
Table 1. Specifications, Type 7Y48 and 7Y49 (continued)
Specification Description
Heat output Approximate heat output:
• Minimum configuration: 454 BTU , 133 W (in BTU per hour and watts)
• Maximum configuration: 5118 BTU, 1500 W (in BTU per hour and watts)
Environment ThinkSystem ST50 complies with ASHRAE Class A2 specifications.
• Air temperature:
– Operating
– ASHARE Class A2: 10°C to 35°C (50°F to 95°F); the maximum ambient
temperature decreases by 1°C for every 300 m (984 ft) increase in altitude
above 900 m (2,953 ft).
– Server off: -10°C to 60°C (14°F to 140°F)
– Shipment/storage: -40°C to 60°C (-40°F to 140°F)
• Maximum altitude: 3,050 m (10,000 ft)
• Relative Humidity (non-condensing):
– Operating
– ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F)
– Shipment/storage: 8% to 90%
• Particulate contamination
Attention: Airborne particulates and reactive gases acting alone or in combination
with other environmental factors such as humidity or temperature might pose a risk to
the server. For information about the limits for particulates and gases, see
“Particulate contamination” on page 144.
Update the firmware
Go to Lenovo Datacenter Support site for the latest firmware update package.
To update the firmware from a flash device, complete the following steps:
1. Go to https://datacentersupport.lenovo.com/products/servers/thinksystem/st50/7y48/downloads. All the
downloadable firmware packages for ST50 are available on this site.
2. Download the latest version of firmware update packages.
3. Follow the instructions enclosed in the package to update the firmware.
Note: Perform the firmware update in operating system accordingly to the instructions.
Tech Tips
Lenovo continually updates the support Web site with the latest tips and techniques that you can use to
solve issues that you might have with your server. These Tech Tips (also called retain tips or service bulletins)
provide procedures to work around issues related to the operation of your server.
To find the Tech Tips available for your server:
1. Go to http://datacentersupport.lenovo.com and navigate to the support page for your server.
2. Click Documentation from the navigation pane.
Follow the on-screen instructions to choose the category for the problem that you are having.
Security advisories
Lenovo is committed to developing products and services that adhere to the highest security standards in
order to protect our customers and their data. When potential vulnerabilities are reported, it is the
6ThinkSystem ST50 Maintenance Manual
responsibility of the Lenovo Product Security Incident Response Team (PSIRT) to investigate and provide
information to our customers so they may put mitigation plans in place as we work toward providing
solutions.
The list of current advisories is available at the following location:https://datacentersupport.lenovo.com/
product_security/home
Power on the server
After the server performs a short self-test (power status LED flashes quickly) when connected to input power,
it enters a standby state (power status LED flashes once per second).
The server can be turned on (power LED on) in any of the following ways:
• Press the power button. Before the operating system starts running, you can press Enter to enter Startup
Interrupt Menu. In this menu, a few options are available for various purposes:
– Press Esc to resume to normal startup.
– Press F1 to enter the Setup Utility.
– Press F10 to diagnose hardware.
– Press F11 to choose a temporary startup device.
– Press Ctrl + P to enter the Management Engine setup screen or initiate a remote connection.
– Press Enter to pause.
• The server can restart automatically after a power interruption.
Note: If the boot screen lingers with the message of “System Security - The system has been tempered
with,” it means the server cover is not properly installed. Remove and reinstall it (see “Server cover
replacement” on page 113); then, restart the server.
For information about powering off the server, see “Power off the server” on page 7.
Power off the server
The server remains in a standby state when it is connected to a power source. To remove all power from the
server (power-on LED off), you must disconnect all power cables.
To place the server in a standby state (power-on LED flashes once per second):
• Start an orderly shutdown using the operating system (if supported by your operating system).
• Press the power-on button to start an orderly shutdown (if supported by your operating system).
• Press and hold the power button for more than 4 seconds to force a shutdown.
Chapter 1.Introduction 7
8ThinkSystem ST50 Maintenance Manual
Chapter 2. Server components
This section provides information that helps locate the server components.
Front view
Read this section to identify important components on the front of this server.
The following configurations are available for this sever:
Figure 3. Front views of various configurations
Table 2. Front views of different configurations
1 One drive bay filler
2 One drive bay adapter for hard-disk/solid-state drive
3 One half height optical or LTO/RDX tape drive
4 One drive bay adapter for slim optical drive and hard-disk/solid-state drive
Front panel
Some crucial key controls, connectors, and LEDs are located on the front panel of the server.
The following illustration shows the controls, connectors, and LEDs on the front panel of the server.
Figure 4. Components on the front panel
Table 3. Components on the front panel
1 Power button with power status LED (green) 3 USB 3.1 Gen1 connector
2 Drive activity LED (green) 4 USB 3.1 Gen1 connector
1 Power button with power status LED (green)
© Copyright Lenovo 2018, 2020 9
Press the power button to turn on the server, or hold it for several seconds to turn the server off when the
server cannot be turned off in the operating system. The power status LED helps determine the current
power status.
Status Color Description
Solid on Green The server is on and running.
Slow blinking (about one
flash per second)
Green The server is off and is ready to be powered on (standby state).
Off None There is no ac power applied to the server.
2 Drive activity LED (green)
This LED indicates the activity of the drives.
Table 4. Drive activity LED behavior
Status Color Description
Solid on Green The drives are active.
Off None The drives are not active.
Note: The drive activity LED only indicates the activities of drives that are connected to the SATA ports on
the system board.
3 4 USB 3.1 Gen1 connectors
Available for a device that require USB 2.0 or 3.0 connection, such as a keyboard, a mouse, or a USB flash
drive.
Rear view
Refer this section to identify important components on the rear of the server.
10 ThinkSystem ST50 Maintenance Manual
Figure 5. Rear view
Table 5. Rear view
1 Power supply 6 USB 3.1 Gen1 connectors (2)
2 Line Out connector 7 USB 2.0 connectors (2)
3 Serial connector 8 Ethernet connector
4 DisplayPort connector 2 9 PCIe slots (3)
5 DisplayPort connector 1
1 Power supply unit
Connect the power cord to this component.
2 Line Out connector
Connect a audio device, such as speakers or earphones, to this connector.
Notes:
1. This connector only supports Windows client.
2. User may be aware of the low frequency noise via audio port in particular environments.
3. Excessive sound pressure from ear-/headphone can cause hearing damage.
3 Serial connector
Connect a 9-pin serial device to this connector.
4 5 DisplayPort connectors
Chapter 2.Server components 11
Connect a DisplayPort-compatible video device, such as a monitor, to this connector.
6 7 USB connectors
Available for a device that require USB 2.0 or 3.0 connection, such as a keyboard, a mouse, or a USB flash
drive.
8 Ethernet connector
Connect an Ethernet cable to this connector for a LAN . This connector comes with LED for status indication.
9 PCIe slots
This server comes with three PCIe slots on the system board. For detailed information about the PCIe slots,
see “Specifications” on page 2.
12 ThinkSystem ST50 Maintenance Manual
System board components
The illustration in this section shows the component locations on the system board.
Figure 6. System board components
Table 6. Components on the system board
1 Processor power connector 15 Front fan power connector
2 Processor socket 16 SATA connector 3
3 Processor fan power connector 17 SATA connector 4
4 DIMM slot 1 18 SATA connector 2
5 DIMM slot 2 19 SATA connector 1
6 DIMM slot 3 20 Thermal sensor connector
7 DIMM slot 4 21 USB connector for dual SD card adapter
8 Front panel connector 22 PCIe slot 3
9 Drive bay adapter fan power connector 23 PCIe slot 2
10 System power connector 24 PCIe slot 1
11 SATA power connector 25 Rear fan power connector
12 Front panel USB connector 26 Intrusion switch connector
13 Front panel USB connector 27 3V CMOS battery (CR2032)
14 Slim optical drive USB connector
System board jumpers
The following illustration shows the location of the jumpers on the server.
Chapter 2.Server components 13
Figure 7. System board jumpers
Table 7. Jumper description
Jumper name Jumper setting
1 CLR_CMOS • Pin 1 and 2: default
• Pin 1 and 3: clear CMOS
Important:
• Before you move the jumpers, turn off the server. Then, disconnect all power cords and external cables.
Do not open your server or attempt any repair before reading and understanding the following information:
– http://thinksystem.lenovofiles.com/help/topic/safety_documentation/pdf_files.html
– “Handling static-sensitive devices” on page 31
• Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.
Dual SD card adapter module
Read this section to learn about the dual SD card adapter module.
Figure 8. Dual SD card adapter module
14 ThinkSystem ST50 Maintenance Manual
1 Connector for the system board 3 SD card slot (bottom)
2 SD card slot (top)
Internal cable routing
Some of the components in the server come with internal cables meant for specific connectors.
Before connecting the cables, read the following guidelines carefully:
• Turn off the server before you connect or disconnect any internal cables.
• Refer to the documentation that comes with any external devices for additional cabling instructions.
• Make use of the identifiers printed on the cables to locate the proper connectors.
• Ensure that the cable is not pinched and does not cover any connectors or obstruct any components on
the system board.
Note: Disengage all latches, release tabs, or locks on cable connectors when you disconnect cables from
the system board. Failing to release them before removing the cables will damage the cable sockets on the
system board, which are fragile. Any damage to the cable sockets might require replacing the system board.
Figure 9. Pressing the release tab to disengage the connector
Figure 10. Squeezing the release tabs at both sides to disengage the connector
Cable routing for drive bay 1-3
Read this section to learn about cable routing for the drive in bay 1 to 3.
Chapter 2.Server components 15
Drive bay 1
Figure 11. Cable routing for drive bay 1
Table 8. Cable routing for drive bay 1
1 Micro-fit to two 1X15P Y-splitter power cable, 450 mm 2 SATA 7-pin signal cable with latch, 420mm
Drive bay 2
Figure 12. Cable routing for drive bay 2
Table 9. Cable routing for drive bay 2
1 Micro-fit to two 1X15P Y-splitter power cable, 450 mm 2 SATA 7-pin signal cable with latch, 420mm
16 ThinkSystem ST50 Maintenance Manual
Drive bay 3
Figure 13. Cable routing for drive bay 3
Table 10. Cable routing for drive bay 3
1 Micro-fit to two 1X15P Y-splitter power cable, 450 mm 2 SATA 7-pin signal cable with latch, 420mm
Cable routing for drive bay 4
Read this section to learn about cable routing for the drive in bay 4.
Chapter 2.Server components 17
Optical/tape drive
Figure 14. Cable routing for the optical/tape drive
Table 11. Cable routing for the optical/tape drive
1 Micro-fit to two 1X15P Y-splitter power cable, 450
mm
2 • Optical drive: SATA signal cable for optical drive
• Tape drive: SAS signal cable for tape drive
Drive bay adapter with hard-disk or solid-state drive
Figure 15. Cable routing for drive bay adapter with hard-disk or solid-state drive
18 ThinkSystem ST50 Maintenance Manual
Table 12. Cable routing for drive bay adapter with hard-disk or solid-state drive
1 Micro-fit to two 1X15P Y-splitter power cable, 450 mm 3 Drive bay adapter fan cable
2 SATA 7-pin signal cable with latch, 420mm
Drive bay adapter with hard-disk or solid-state drive and slim optical drive
Figure 16. Cable routing for drive bay adapter with hard-disk or solid-state drive and slim optical drive
Table 13. Cable routing for drive bay adapter with hard-disk or solid-state drive and slim optical drive
1 Micro-fit to two 1X15P Y-splitter power cable, 450 mm 3 SATA 7-pin signal cable with latch, 420mm
2 Slim optical drive USB 2.0 Mini B cable 4 Drive bay adapter fan cable
Cable routing for the RAID adapter and drives
Read this section to learn about cable routing for the RAID adapter and drives.
Figure 17. Mini SAS HD to 4 SATA 7-pin cable
Table 14. Mini SAS HD to 4 SATA 7-pin cable
1 Connector for the RAID adapter (connector C0) 2 Connectors for the drives
Notes:
1. The RAID adapter can be installed in PCIe slot 1 or 3.
2. Make sure the signal cable go through the cable clip.
Chapter 2.Server components 19
Cable routing for two drives with the RAID adapter
Figure 18. Cable routing for two drives with the RAID adapter
Table 15. Cable routing for two drives with the RAID adapter
1 Mini SAS HD to 4 SATA 7-pin cable 2 Micro-fit to two 1X15P Y-splitter power cable, 450 mm
Cable routing for three drives with the RAID adapter
Figure 19. Cable routing for three drives with the RAID adapter
Table 16. Cable routing for three drives with the RAID adapter
1 Mini SAS HD to 4 SATA 7-pin cable 2 3 Micro-fit to two 1X15P Y-splitter power cable, 450 mm
20 ThinkSystem ST50 Maintenance Manual
Cable routing for four drives with the RAID adapter
Figure 20. Cable routing for four drives with the RAID adapter
Table 17. Cable routing for four drives with the RAID adapter
1 Mini SAS HD to 4 SATA 7-pin cable 2 3 Micro-fit to two 1X15P Y-splitter power cable, 450 mm
Cable routing for the power supply unit
Read this section to learn about cable routing for the thermal sensor.
Figure 21. Cable routing for the power supply unit
Chapter 2.Server components 21
Table 18. Cable routing for the power supply unit
1 Micro-fit to 1X15P and 1X4P Y-splitter power cable (4-
pin SATA connector for processor power)
2 Micro-fit to 1X15P and 1X4P Y-splitter power cable
(15-pin connector for system power)
Note: 1 and 2 are parts of the same Y-splitter cable.
Cable routing for the fans
Read this section to learn about cable routing for the fans.
Figure 22. Cable routing for the fans
Table 19. Cable routing for drive bay 1
1 Rear fan cable 3 Front fan cable
2 Heat sink fan cable
Cable routing for the front panel
Read this section to learn about cable routing for the front panel.
22 ThinkSystem ST50 Maintenance Manual
Cable routing for the thermal sensor
Read this section to learn about cable routing for the thermal sensor.
Figure 24. Cable routing for the thermal sensor
Table 21. Cable routing for the thermal sensor
1 Thermal sensor cable, 6-pin 460 mm
Note: Make sure the thermal sensor cable is routed through the cable clip.
Parts list
Use the parts list to identify each of the components that are available for your server.
Note: Depending on the model, your server might look slightly different from the illustration.
24 ThinkSystem ST50 Maintenance Manual
Figure 25. Server components
The parts listed in the following table are identified as one of the following:
• Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your responsibility. If Lenovo
installs a Tier 1 CRU at your request with no service agreement, you will be charged for the installation.
• Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or request Lenovo to install it, at
no additional charge, under the type of warranty service that is designated for your server.
• Field replaceable unit (FRU): FRUs must be installed only by trained service technicians.
• Consumable and Structural parts: Purchase and replacement of consumable and structural parts is
your responsibility. If Lenovo acquires or installs a structural component at your request, you will be
charged for the service.
Chapter 2.Server components 25
Table 22. Parts listing
Index Description Tier 1 CRU Tier 2 CRU FRU
Consumable
and
Structural
parts
For more information about ordering the parts shown in Figure 25 “Server components” on page 25:
http://datacentersupport.lenovo.com/us/en/products/servers/thinksystem/st50/7y48/parts
1Chassis √
2Optical drive √
3LTO/RDX tape drive √
4Drive bay adapter for hard-disk/solid-
state drive √
5Drive bay filler and metal shield √
6Drive bay adapter for slim optical drive
and hard-disk/solid-state drive √
7Slim optical drive √
8Front bezel √
9Front panel √
10 Thermal sensor √
11 Front fan √
12 2.5-inch simple-swap drive in the
retainer √
13 3.5-inch simple-swap drive in the
retainer √
14 Flash power module retainer √
15 Flash power module √
16 PCIe adapter √
17 DIMM √
18 Dual SD card adapter √
19 SD card √
20 System board √
21 CMOS battery √
22 Processor √
23 Heat sink and fan module √
24 Rear fan √
25 Intrusion switch √
26 Server cover √
27 Power supply unit √
26 ThinkSystem ST50 Maintenance Manual
Power cords
Several power cords are available, depending on the country and region where the server is installed.
To view the power cords that are available for the server:
1. Go to:
http://dcsc.lenovo.com/#/
2. In the Customize a Model pane:
a. Click Select Options/Parts for a Model.
b. Enter the machine type and model for your server.
3. Click the Power tab to see all line cords.
Notes:
• For your safety, a power cord with a grounded attachment plug is provided to use with this product. To
avoid electrical shock, always use the power cord and plug with a properly grounded outlet.
• Power cords for this product that are used in the United States and Canada are listed by Underwriter's
Laboratories (UL) and certified by the Canadian Standards Association (CSA).
• For units intended to be operated at 115 volts: Use a UL-listed and CSA-certified cord set consisting of a
minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length and a parallel
blade, grounding-type attachment plug rated 15 amperes, 125 volts.
• For units intended to be operated at 230 volts (U.S. use): Use a UL-listed and CSA-certified cord set
consisting of a minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length
and a tandem blade, grounding-type attachment plug rated 15 amperes, 250 volts.
• For units intended to be operated at 230 volts (outside the U.S.): Use a cord set with a grounding-type
attachment plug. The cord set should have the appropriate safety approvals for the country in which the
equipment will be installed.
• Power cords for a specific country or region are usually available only in that country or region.
Chapter 2.Server components 27
28 ThinkSystem ST50 Maintenance Manual
Chapter 3. Hardware replacement procedures
This section provides installation and removal procedures for all serviceable system components. Each
component replacement procedure references any tasks that need to be performed to gain access to the
component being replaced.
For more information about ordering parts:
1. Go to http://datacentersupport.lenovo.com and navigate to the support page for your server.
2. Click Service Parts.
3. Enter the serial number to view a listing of parts for your server.
Note: If you replace a part, such as an adapter, that contains firmware, you might also need to update the
firmware for that part.
Installation guidelines
Before installing components in your server, read the installation guidelines.
Before installing optional devices, read the following notices carefully:
Attention: Prevent exposure to static electricity, which might lead to system halt and loss of data, by
keeping static-sensitive components in their static-protective packages until installation, and handling these
devices with an electrostatic-discharge wrist strap or other grounding system.
• Read the safety information and guidelines to ensure that you work safely.
– A complete list of safety information for all products is available at: http://thinksystem.lenovofiles.com/
help/topic/safety_documentation/pdf_files.html
– “Handling static-sensitive devices” on page 31
• Make sure the components you are installing are supported by the server. For a list of supported optional
components for the server, see https://static.lenovo.com/us/en/serverproven/index.shtml.
• When you install a new server, download and apply the latest firmware. This will help ensure that any
known issues are addressed, and that your server is ready to work with optimal performance. Go to
ThinkSystem ST50 Drivers and Software to download firmware updates for your server.
Important: Some cluster solutions require specific code levels or coordinated code updates. If the
component is part of a cluster solution, verify that the latest level of code is supported for the cluster
solution before you update the code.
• It is good practice to make sure that the server is working correctly before you install an optional
component.
• Keep the working area clean, and place removed components on a flat and smooth surface that does not
shake or tilt.
• Do not attempt to lift an object that might be too heavy for you. If you have to lift a heavy object, read the
following precautions carefully:
– Make sure that you can stand steadily without slipping.
– Distribute the weight of the object equally between your feet.
– Use a slow lifting force. Never move suddenly or twist when you lift a heavy object.
– To avoid straining the muscles in your back, lift by standing or by pushing up with your leg muscles.
© Copyright Lenovo 2018, 2020 29
• Make sure that you have an adequate number of properly grounded electrical outlets for the server,
monitor, and other devices.
• Back up all important data before you make changes related to the disk drives.
• Have a small flat-blade screwdriver, a small Phillips screwdriver, and a T8 torx screwdriver available.
• You do not have to turn off the server to remove or install hot-swap power supplies or hot-plug USB
devices. However, you must turn off the server before you perform any steps that involve removing or
installing adapter cables, and you must disconnect the power source from the server before you perform
any steps that involve removing or installing a DIMM.
• Blue on a component indicates touch points, where you can grip to remove a component from or install it
in the server, open or close a latch, and so on.
• Orange on a component or an orange label on or near a component indicates that the component can be
hot-swapped if the server and operating system support hot-swap capability, which means that you can
remove or install the component while the server is still running. (Orange can also indicate touch points on
hot-swap components.) See the instructions for removing or installing a specific hot-swap component for
any additional procedures that you might have to perform before you remove or install the component.
• The Red strip on the drives, adjacent to the release latch, indicates that the drive can be hot-swapped if
the server and operating system support hot-swap capability. This means that you can remove or install
the drive while the server is still running.
Note: See the system specific instructions for removing or installing a hot-swap drive for any additional
procedures that you might need to perform before you remove or install the drive.
• After finishing working on the server, make sure you reinstall all safety shields, guards, labels, and ground
wires.
System reliability guidelines
Review the system reliability guidelines to ensure proper system cooling and reliability.
Make sure the following requirements are met:
• When the server comes with redundant power, a power supply must be installed in each power-supply
bay.
• Adequate space around the server must be spared to allow server cooling system to work properly. Leave
approximately 50 mm (2.0 in.) of open space around the front and rear of the server. Do not place any
object in front of the fans.
• For proper cooling and airflow, refit the server cover before you turn the power on. Do not operate the
server for more than 30 minutes with the server cover removed, for it might damage server components.
• Cabling instructions that come with optional components must be followed.
• A failed fan must be replaced within 48 hours since malfunction.
• A removed hot-swap drive must be replaced within two minutes after removal.
• A removed hot-swap power supply must be replaced within two minutes after removal.
• Every air baffle that comes with the server must be installed when the server starts (some servers might
come with more than one air baffle). Operating the server with a missing air baffle might damage the
processor.
• All processor sockets must contain either a socket cover or a processor with heat sink.
• When more than one processor is installed, fan population rules for each server must be strictly followed.
30 ThinkSystem ST50 Maintenance Manual
Handling static-sensitive devices
Review these guidelines before you handle static-sensitive devices to reduce the possibility of damage from
electrostatic discharge.
Attention: Prevent exposure to static electricity, which might lead to system halt and loss of data, by
keeping static-sensitive components in their static-protective packages until installation, and handling these
devices with an electrostatic-discharge wrist strap or other grounding system.
• Limit your movement to prevent building up static electricity around you.
• Take additional care when handling devices during cold weather, for heating would reduce indoor
humidity and increase static electricity.
• Always use an electrostatic-discharge wrist strap or other grounding system.
• While the device is still in its static-protective package, touch it to an unpainted metal surface on the
outside of the server for at least two seconds. This drains static electricity from the package and from your
body.
• Remove the device from the package and install it directly into the server without putting it down. If it is
necessary to put the device down, put it back into the static-protective package. Never place the device
on the server or on any metal surface.
• When handling a device, carefully hold it by the edges or the frame.
• Do not touch solder joints, pins, or exposed circuitry.
• Keep the device from others’ reach to prevent possible damages.
CMOS battery (CR2032) replacement
Follow this procedure to remove and install the CMOS battery (CR2032).
Remove the CMOS battery
Follow this procedure to remove the CMOS battery.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Chapter 3.Hardware replacement procedures 31
S004
CAUTION:
When replacing the lithium battery, use only Lenovo specified part number or an equivalent type
battery recommended by the manufacturer. If your system has a module containing a lithium battery,
replace it only with the same module type made by the same manufacturer. The battery contains
lithium and can explode if not properly used, handled, or disposed of. Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
S005
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do not burn the battery. Exchange it
only with the approved part. Recycle or discard the battery as instructed by local regulations.
Before removing the CMOS battery:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the PCIe adapter installed in slot 1 if necessary (see “Remove a PCIe adapter” on page 97).
To remove the CMOS battery, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Locate the CMOS battery on the system board (see “System board components” on page 13).
32 ThinkSystem ST50 Maintenance Manual
Step 2. Gently press on the nub on the side of the CMOS battery as illustrated; then, pivot the battery away
from the seat to remove it.
Attention: Avoid excessive force on the CMOS battery, as it might damage the socket on the
system board and result in system board replacement.
Figure 26. Removing the CMOS battery
After removing the CMOS battery:
1. Install a new CMOS battery. See “Install the CMOS battery” on page 33.
2. Dispose the CMOS battery as required by local ordinances or regulations.
Note: Make sure to install the CMOS battery before powering on the server. Otherwise, it might cause
system abnormality.
Install the CMOS battery
Follow this procedure to install the CMOS battery.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Consider the following when replacing the CMOS battery in the server:
• When replacing the CMOS battery, you must replace it with another CMOS battery of the same type from
the same manufacturer.
• After replacing the CMOS battery, make sure to reconfigure the server and reset system date and time.
• To avoid possible danger, make sure to read and follow the safety statements.
• Lenovo has designed this product with your safety in mind. The CMOS battery must be handled correctly
to avoid possible danger. If you install the CMOS battery, do adhere to the following instructions.
Note: In the U. S., call 1-800-IBM-4333 for information about battery disposal.
• If you replace the original CMOS battery with a heavy-metal battery or a battery with heavy-metal
components, be aware of the following environmental consideration. Batteries and accumulators that
contain heavy metals must not be disposed of along with normal domestic waste. They should be taken
back free of charge by for recycle or proper disposal by the manufacturer, distributor, or representatives.
Chapter 3.Hardware replacement procedures 33
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
S004
CAUTION:
When replacing the lithium battery, use only Lenovo specified part number or an equivalent type
battery recommended by the manufacturer. If your system has a module containing a lithium battery,
replace it only with the same module type made by the same manufacturer. The battery contains
lithium and can explode if not properly used, handled, or disposed of. Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
S005
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do not burn the battery. Exchange it
only with the approved part. Recycle or discard the battery as instructed by local regulations.
Before installing the CMOS battery:
1. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the CMOS battery, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
34 ThinkSystem ST50 Maintenance Manual
Step 1. Place the CMOS battery on top of the socket with the positive (+) symbol facing up, and press the
battery into the seat until it clicks in place.
Figure 27. Installing the CMOS battery
After installing the CMOS battery:
1. If the PCIe adapter in slot 1 was removed, install it (see “Install a PCIe adapter” on page 100).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
3. Reset date, time, and all the passwords.
DIMM replacement
Follow this procedure to remove and install a DIMM.
Remove a DIMM
Follow this procedure to remove a DIMM.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing a DIMM:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
Chapter 3.Hardware replacement procedures 35
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the PCIe adapter installed in slot 1 if necessary (see “Remove a PCIe adapter” on page 97).
Attention: DIMMs are sensitive to static discharge and require special handling. In addition to the standard
guidelines of “handling static-sensitive devices” on page 31:
• Always wear an electrostatic-discharge strap when removing or installing DIMMs. Electrostatic-discharge
gloves can also be used.
• Keep each DIMM separated from one another. Do not stack DIMMs directly on top of each other during
storage.
• Keep the gold DIMM connector contacts from touching anything.
• Handle DIMMs with care: never bend, twist, or drop a DIMM.
To remove a DIMM, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Carefully open the retaining clips on both ends of the DIMM slot; then, gently lift the DIMM to
remove it.
Figure 28. Removing the DIMM
After removing the DIMM:
1. Install a new DIMM if necessary (see “Install a DIMM” on page 38).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
DIMM installation rules
DIMMs must be installed in a specific order based on the memory configuration of the server.
The following illustration shows the location of the DIMM connectors on the system board.
36 ThinkSystem ST50 Maintenance Manual
Table 23. DIMM slots on the system board
1 DIMM slot 1 3 DIMM slot 3
2 DIMM slot 2 4 DIMM slot 4
Figure 29. DIMM slots on the system board
For a list of supported DIMM options, see: https://static.lenovo.com/us/en/serverproven/index.shtml
Notes: Make sure to adhere to the following rules:
• Do not mix ECC and non-ECC DIMMs.
• Do not mix DIMMs with different voltages.
• Do not mix low-voltage and regular UDIMMs.
This server supports independent mode only.
Independent mode
Independent mode provides high performance memory capability. You can populate all channels with no
matching requirements. Individual channels can run at different DIMM timings, but all channels must run at
the same interface frequency.
Notes:
• All the DIMMs to be installed should be of the same type and capacity.
The following table shows the DIMM population sequence for independent mode.
Table 24. Independent mode DIMM installation sequence
Total DIMMs Slot 1 Slot 2 Slot 3 Slot 4
1V
2V V
Chapter 3.Hardware replacement procedures 37
Table 24. Independent mode DIMM installation sequence (continued)
Total DIMMs Slot 1 Slot 2 Slot 3 Slot 4
3V V V
4V V V V
Install a DIMM
Follow this procedure to install a DIMM.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing a DIMM:
1. Locate the DIMM slots and determine DIMM installation order based on “DIMM installation rules” on
page 36.
2. Remove the PCIe adapter installed in slot 1 if necessary (see “Remove a PCIe adapter” on page 97).
3. Make sure that both retaining clips on the DIMM connector are in the open position. If not, press and
open the retaining clip on both ends of the DIMM slot.
38 ThinkSystem ST50 Maintenance Manual
Figure 30. Opening the DIMM retaining clips
Note: In the case of space constraints, use a pointed tool to open the retaining clips. Place the tip of the
tool in the recess on the top of the retaining clip; then, carefully pivot the retaining clip away from the
center of the DIMM connector.
4. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
Attention: DIMMs are sensitive to static discharge and require special handling. In addition to the standard
guidelines of “handling static-sensitive devices” on page 31:
• Always wear an electrostatic-discharge strap when removing or installing DIMMs. Electrostatic-discharge
gloves can also be used.
• Keep each DIMM separated from one another. Do not stack DIMMs directly on top of each other during
storage.
• Keep the gold DIMM connector contacts from touching anything.
• Handle DIMMs with care: never bend, twist, or drop a DIMM.
To install a DIMM, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Chapter 3.Hardware replacement procedures 39
Step 1. Align the DIMM to the connector on the DIMM slot; then, press the DIMM straight into the slot with
even pressure on both ends of the DIMM until the retaining clips snap into the locked position.
Figure 31. Installing a DIMM
Note: Make sure that the small tabs on the retaining clips engage the notches on the DIMM. If
there is a gap between the DIMM and the retaining clips, it indicates that the DIMM has not been
properly installed. Remove the DIMM and reinstall it.
After installing a DIMM:
1. Install other DIMMs if necessary.
2. If the PCIe adapter in slot 1 was removed, install it (see “Install a PCIe adapter” on page 100).
3. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
4. Reconfigure the DIMMs if necessary.
Drive replacement
Follow this procedure to remove and install a drive.
See the following section for location of the drive bays and types of drives supported.
40 ThinkSystem ST50 Maintenance Manual
Figure 32. Drive bays
Table 25. Drive bays and types of drive supported
Drive bay Types of drive supported
1 Bay 1
• 3.5-inch simple-swap drive
• 2.5-inch simple-swap drive
2 Bay 2
3 Bay 3
4 Bay 4 • 5.25-inch drive bay filler
• 5.25-inch optical drive
• 5.25-inch RDX/LTO tape drive
• 5.25-inch bay adapter for hard-disk/solid-state drive
• 5.25-inch bay adapter for slim optical drive and hard-disk/solid-state drive
Simple-swap drive replacement (bay 1-3)
Follow this procedure to remove and install a simple-swap drive from and into bay 1 to 3.
This section only applies to drives to be removed and installed from and into bay 1 to 3. To remove or install
a drive from or into bay 4, see “Remove a 5.25-inch drive bay adapter assembly” on page 56 and “Install a
5.25-inch drive bay adapter assembly” on page 60.
Remove a simple-swap drive (bay 1-3)
Follow this procedure to remove a simple-swap drive.
Chapter 3.Hardware replacement procedures 41
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing a simple-swap drive:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
To remove a simple-swap drive, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect every cable from the drive assembly.
Step 2. Grasp the retainer handle, and slide the drive assembly out from the drive bay.
42 ThinkSystem ST50 Maintenance Manual
Step 3. If necessary, remove the drive from the retainer.
3.5-inch drive
a. Tear both sides of the retainer apart, and remove the drive.
Figure 35. Removing a 3.5-inch drive from the retainer
2.5-inch drive
a. Remove the four screws that secured the drive to the retainer, and remove the drive.
Figure 36. Removing a 2.5-inch drive from the retainer
After removing the simple-swap drive:
1. Install a new drive (see “Install a simple-swap drive (bay 1-3)” on page 44). Otherwise, install the screws
to the retainer, and slide the retainer back into the drive bay for future use.
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install a simple-swap drive (bay 1-3)
Follow this procedure to install a simple-swap drive.
44 ThinkSystem ST50 Maintenance Manual
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing a simple-swap drive:
1. Make sure the type of drives to be installed is supported. Following are the types supported:
• 3.5-inch simple-swap drive
• 2.5-inch simple-swap drive
For a complete list of supported optional devices for the server, see:https://static.lenovo.com/us/en/
serverproven/index.shtml
2. If there are more than one drives to be installed, determine installation order based on the following
rules:
• Start with solid-state drives, and proceed with hard-disk drives.
• Start with the drive with the lowest capacity.
• Start with bay 1, proceed to bay 2, and 3.
Note: Drives of different types and different capacities are allowed to be installed in one server, but not
in the same RAID array. The drives in a single RAID array must be the same type and the same capacity.
See http://sysmgt.lenovofiles.com/help/index.jsp?topic=%2FLXPM%2FRAID_setup.html for more details.
To install a simple-swap drive, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Prepare the drive to be installed if necessary:
Note: To prevent from damaging the drive with static discharge, do not touch the circuit board on
the bottom of the drive.
Chapter 3.Hardware replacement procedures 45
Figure 37. Circuit board on the drive
3.5-inch drive
a. Slightly tear both sides of the retainer apart; then, fit the drive in the retainer.
b. Align the four holes on the drive with the corresponding pins on the retainer, and lower the
drive until it is secured in the retainer.
Figure 38. Installing a 3.5-inch drive into the retainer
2.5-inch drive
a. Align the four screw holes on the retainer to those on the drive; then, secure the drive to the
adapter with four screws.
46 ThinkSystem ST50 Maintenance Manual
Figure 40. Installing a drive assembly into bay 2
• Bay 3
Face the connectors down, and slide the drive assembly into the drive bay.
Figure 41. Installing a drive assembly into bay 3
48 ThinkSystem ST50 Maintenance Manual
Step 3. Connect the signal and power cable to the system board. See “Cable routing for drive bay 1-3” on
page 15 for details.
After installing the simple-swap drive:
1. Install other drives if necessary.
2. Complete the parts replacement. See “Complete the parts replacement” on page 124.
3. Check the drive activity LED on the front panel to verify if the drives are operating correctly.
Table 26. Drive activity LED behavior
Status Color Description
Solid on Green The drives are active.
Off None The drives are not active.
4. Use the Lenovo XClarity Provisioning Manager Lite to configure the RAID if necessary. For more
information, see:
http://sysmgt.lenovofiles.com/help/index.jsp?topic=%2FLXPM%2FRAID_setup.html
Optical/tape drive or drive adapter replacement (bay 4)
Follow this procedure to remove and install a optical/tape drive or drive adapter.
S006
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are
installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
S007
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments.
S008
Chapter 3.Hardware replacement procedures 49
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following:
Laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam.
This server supports the following in drive bay 4:
• One 5.25-inch optical drive
• One 5.25-inch RDX/LTO tape drive
• One 2.5-inch drive bay adapter for hard-disk or solid-state drive
• One 2.5-inch drive bay adapter for hard-disk or solid-state drive and slim optical drive
Remove an optical or tape drive
Follow this procedure to remove an optical or RDX/LTO tape drive.
Note: This section only applies to server models that come with an optical or tape drive. For those that come
with a 5.25-inch drive adapter, see “Remove a 5.25-inch drive bay adapter assembly” on page 56.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing an optical or tape drive:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the front bezel (see “Remove the front bezel” on page 81).
50 ThinkSystem ST50 Maintenance Manual
To remove an optical or tape drive, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect every cable from the drive assembly.
Step 2. Press the release tab on the side of the chassis, and slide the drive assembly out from the drive
bay.
Figure 42. Removing the optical drive assembly
After removing an optical or tape drive:
1. Install one of the following:
• A optical or tape drive (see “Install an optical or tape drive” on page 53).
• A 5.25-inch drive bay adapter (see “Install a 5.25-inch drive bay adapter assembly” on page 60).
• Otherwise:
a. Store the drive retainer into the gap on the side of the chassis for future use.
Chapter 3.Hardware replacement procedures 51
Figure 43. Storing the drive retainer
b. Install the shield into the drive bay.
Figure 44. Installing the drive bay shield
c. Press the filler into the slot on the front bezel until it snaps in place.
52 ThinkSystem ST50 Maintenance Manual
Figure 45. Installing the drive filler
d. Install the front bezel (see “Install the front bezel” on page 83).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install an optical or tape drive
Follow this procedure to install an optical or RDX/LTO tape drive.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Chapter 3.Hardware replacement procedures 53
S006
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are
installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
S007
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments.
Before installing an optical or tape drive:
1. If the front bezel is installed, remove it (see “Remove the front bezel” on page 81).
2. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install an optical or tape drive, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
54 ThinkSystem ST50 Maintenance Manual
Step 1. Align the retainer on the side of the optical or tape drive and install it.
Figure 46. Installing the drive retainer to an optical drive
Figure 47. Installing the drive retainer to a tape drive
Step 2. Align the optical or tape drive to the drive bay, and slide it in until it snaps into place.
Figure 48. Installing the optical drive assembly
Chapter 3.Hardware replacement procedures 55
Step 3. Connect the power cable and the signal cable to the system board. For more information about
cable routing, see “Cable routing for drive bay 4” on page 17.
After installing the optical or tape drive:
1. Install the front bezel (see “Install the front bezel” on page 83).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Remove a 5.25-inch drive bay adapter assembly
Follow this procedure to remove a 5.25-inch drive bay adapter assembly.
Note: This section only applies to server models that come with a 5.25-inch drive bay adapter. For those
that come with an optical or tape drive, see “Remove an optical or tape drive” on page 50.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing a 5.25-inch drive bay adapter assembly:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the front bezel (see “Remove the front bezel” on page 81).
To remove a drive bay adapter assembly, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect every cable from the adapter assembly.
56 ThinkSystem ST50 Maintenance Manual
Step 2. Press the release tab on the side of the chassis, and slide the adapter assembly towards the front
of the server to remove it.
Figure 49. Removing the 5.25-inch drive bay adapter assembly
Step 3. Remove the following components from the adapter if necessary:
Slim optical drive
a. Press the release tab on the top of the adapter, and slide the slim optical drive out from the
adapter.
Figure 50. Removing the slim optical drive from the drive bay adapter
Simple-swap drive
a. Pinch the release tab on the rear of the drive assembly as illustrated; then, pivot the latch to the
open position.
Chapter 3.Hardware replacement procedures 57
Figure 51. Opening the latch of the adapter assembly
b. Grasp the handle on the retainer and slide the drive out from the adapter.
Figure 52. Removing the storage drive from the drive adapter
After removing the 5.25-inch drive bay adapter assembly:
1. Install one of the following:
• A optical or tape drive (see “Install an optical or tape drive” on page 53).
• A 5.25-inch drive bay adapter (see “Install a 5.25-inch drive bay adapter assembly” on page 60).
• Otherwise:
a. Store the drive retainer into the gap on the side of the chassis for future use.
58 ThinkSystem ST50 Maintenance Manual
Figure 55. Installing the drive filler
d. Install the front bezel (see “Install the front bezel” on page 83).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install a 5.25-inch drive bay adapter assembly
Follow this procedure to install a 5.25-inch drive bay adapter assembly.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing a 5.25-inch drive bay adapter assembly:
1. If the front bezel is installed, remove it (see “Remove the front bezel” on page 81).
2. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install a 5.25-inch drive bay adapter assembly, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Install the components into the drive bay adapter if necessary:
Slim optical drive
60 ThinkSystem ST50 Maintenance Manual
a. Align the screw holes on the retainer to the corresponding ones one the slim optical drive, and
secure the retainer with two screws.
Figure 56. Installing the retainer to the slim optical drive
b. Slide the slim optical drive into the slot on the front of the drive adapter until it snaps into place.
Figure 57. Installing the slim optical drive into the drive bay adapter
Simple-swap drive
a. Pinch the release tab on the rear of the drive assembly as illustrated; then, pivot the latch to the
open position.
Figure 58. Opening the latch of the adapter assembly
Chapter 3.Hardware replacement procedures 61
b. Slightly tear both sides of the retainer apart; then, fit the drive in the retainer.
c. Align the four holes on the drive with the corresponding pins on the retainer, and lower the
drive until it is secured in the retainer.
Figure 59. Installing a 3.5-inch drive into the retainer
d. Slide the drive assembly into the drive adapter.
Figure 60. Installing the drive assembly into the drive adapter
e. Close the drive adapter latch.
62 ThinkSystem ST50 Maintenance Manual
Figure 61. Closing the drive adapter latch
Step 2. Slide the drive bay adapter assembly slide into drive 3 until it clicks into place.
Figure 62. Installing the drive bay adapter assembly
Step 3. Connect the power cable and the signal cable to the system board. For more information about the
cable routing, see “Cable routing for drive bay 4” on page 17.
After installing the drive bay adapter assembly:
1. Install the front bezel (see “Install the front bezel” on page 83).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
3. Reconfigure the RAID settings if necessary.
Dual SD card adapter replacement
Follow this procedure to remove and install the dual SD card adapter.
For details concerning the components of dual SD card adapter, see “Dual SD card adapter module” on
page 14.
Remove the dual SD card adapter
Follow this procedure to remove the dual SD card adapter.
Chapter 3.Hardware replacement procedures 63
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the dual SD card adapter:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
To remove the dual SD card adapter, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the cable from the adapter.
Step 2. Press and hold the release tab as illustrated; then, pivot the adapter away from the retainer.
64 ThinkSystem ST50 Maintenance Manual
Figure 63. Removing the dual SD card adapter
Step 3. Slide the SD cards out from the slots to remove them if necessary.
Figure 64. Removing a SD card from the dual SD card adapter
Step 4. If necessary, remove the screw that secures the module retainer to the chassis, and slide it towards
the left side of the server to remove it.
Chapter 3.Hardware replacement procedures 65
Figure 65. Removing the dual SD card adapter retainer
After removing the dual SD card adapter:
1. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the dual SD card adapter
Follow this procedure to install the dual SD card adapter.
“Read the
installation
Guidelines” on
page 29
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
66 ThinkSystem ST50 Maintenance Manual
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the dual SD card adapter:
1. If the adapter retainer is not installed, secure it to the chassis with a screw as illustrated.
Figure 66. Installing the dual SD card adapter retainer
2. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the dual SD card adapter, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Chapter 3.Hardware replacement procedures 67
Step 1. Slide the SD cards into the slots on the dual SD card adapter if necessary.
Figure 67. Installing a SD card into the dual SD card adapter
Step 2. Align the adapter to the retainer and press it until it snaps in place.
Figure 68. Installing the dual SD card adapter
Step 3. Connect the cable to the system board. To locate the connector on the system board, see “System
board components” on page 13.
After installing the dual SD card adapter:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
68 ThinkSystem ST50 Maintenance Manual
Fan replacement
Follow this procedure to remove and install the front or rear fan.
Note: For heat sink and fan module replacement, see “Heat sink and fan module replacement” on page 88.
Remove the front fan
Follow this procedure to remove the front fan.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the front fan:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the front bezel (see “Remove the front bezel” on page 81).
To remove the front fan, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the fan cable from the system board; then, route the cable out from the chassis.
Chapter 3.Hardware replacement procedures 69
Figure 69. Routing front fan cable out
Step 2. Lift the fan slightly to detach and remove it from the chassis.
Figure 70. Removing the front fan
After removing the front fan:
1. Install a new front fan (see “Install the front fan” on page 70).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the front fan
Follow this procedure to install the front fan.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
70 ThinkSystem ST50 Maintenance Manual
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the front fan:
1. If a front fan has been installed, remove it (see “Remove the front fan” on page 69).
2. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the front fan, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Align the four rubber mounts on the front fan assembly with the corresponding holes on the front of
the chassis; then, push and lower the fan until it is secured to the chassis with the rubber mounts.
Figure 71. Installing the front fan
Step 2. Route the fan cable through the hole on the front of the chassis as illustrated.
Chapter 3.Hardware replacement procedures 71
Figure 72. Routing the front fan cable
Step 3. Connect the fan cable to the system board (see “Cable routing for the fans” on page 22).
After installing the front fan:
1. Install the front bezel (see “Install the front bezel” on page 83).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Remove the rear fan
Follow this procedure to remove the rear fan.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
72 ThinkSystem ST50 Maintenance Manual
Before removing the rear fan:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
To remove the rear fan, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the fan cable from the system board.
Step 2. Cut off the four rubber mounts that secure the fan to the chassis from the external side; then,
remove the fan.
Figure 73. Removing the rear fan
Chapter 3.Hardware replacement procedures 73
After removing the rear fan:
1. Install a new rear fan. See ( “Install the rear fan” on page 74).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the rear fan
Follow this procedure to install the rear fan.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the rear fan
1. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the rear fan, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
74 ThinkSystem ST50 Maintenance Manual
Step 1. Align the four rubber mounts on the rear fan with the corresponding holes on the rear of the
chassis.
Figure 74. Installing the rear fan
Step 2. Gently pull the tips of the four rubber mounts out from the holes until the rear fan is secured to the
chassis.
Step 3. Connect the fan cable to the system board (see “Cable routing for the fans” on page 22).
After installing the rear fan:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Flash power module replacement
Follow this procedure to remove and install a flash power module.
Remove the flash power module
Follow this procedure to remove the flash power module.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 75
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
S004
CAUTION:
When replacing the lithium battery, use only Lenovo specified part number or an equivalent type
battery recommended by the manufacturer. If your system has a module containing a lithium battery,
replace it only with the same module type made by the same manufacturer. The battery contains
lithium and can explode if not properly used, handled, or disposed of. Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
S005
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do not burn the battery. Exchange it
only with the approved part. Recycle or discard the battery as instructed by local regulations.
Before removing the flash power module:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
76 ThinkSystem ST50 Maintenance Manual
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
To remove the flash power module, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the cable from the RAID adapter.
Step 2. Press the release tab on the side of the retainer; then, remove the flash power module retainer
assembly.
Figure 75. Removing the RAID flash power module assembly
Step 3. Press the release tab on the retainer, and pivot the flash power module to remove it from the
retainer.
Figure 76. Removing the RAID flash power module from the retainer
Chapter 3.Hardware replacement procedures 77
After removing the flash power module:
1. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the flash power module
Follow this procedure to install the flash power module.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
S004
CAUTION:
When replacing the lithium battery, use only Lenovo specified part number or an equivalent type
battery recommended by the manufacturer. If your system has a module containing a lithium battery,
replace it only with the same module type made by the same manufacturer. The battery contains
lithium and can explode if not properly used, handled, or disposed of. Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
S005
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do not burn the battery. Exchange it
only with the approved part. Recycle or discard the battery as instructed by local regulations.
78 ThinkSystem ST50 Maintenance Manual
Before installing the flash power module:
1. If the flash power module retainer has been installed to the server, press the release tab on the side of
the retainer and remove it.
Figure 77. Removing the flash power module retainer
2. If the RAID adapter has been installed, remove it (see “Remove a PCIe adapter” on page 97).
3. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the flash power module, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Chapter 3.Hardware replacement procedures 79
Step 1. Press the release tab, and align the bottom of the flash power module to the slot on the retainer;
then, firmly press the flash power module until it snaps in place.
Figure 78. Installing the flash power module into the retainer
Step 2. Align the flash power module assembly with the corresponding holes on the chassis, and slide it
forward until it snaps in place.
Figure 79. Installing the flash power module assembly
Step 3. Connect the cable to the flash power module adapter and the RAID adapter.
80 ThinkSystem ST50 Maintenance Manual
Figure 80. Connecting the flash power module cable
After installing the flash power module:
1. Install the RAID adapter (see “Install a PCIe adapter” on page 100).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Front bezel replacement
Follow this procedure to remove and install the front bezel.
Remove the front bezel
Follow this procedure to remove the front bezel.
“Read the
installation
Guidelines” on
page 29
“Power off the
server for this
task” on page
7
Chapter 3.Hardware replacement procedures 81
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the front bezel:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
To remove the front bezel, complete the following step:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Release the three plastic tabs on the left side; then, pivot the front bezel as shown to remove the
front bezel from the chassis.
82 ThinkSystem ST50 Maintenance Manual
Figure 81. Removing the front bezel
After removing the front bezel:
1. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the front bezel
Follow this procedure to install the front bezel.
“Read the
installation
Guidelines” on
page 29
“Power off the
server for this
task” on page
7
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the front bezel:
Chapter 3.Hardware replacement procedures 83
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
To install the front bezel, complete the following step:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Align the three plastic tabs with the corresponding slots on the front of the chassis. Then, pivot the
other side of the front bezel towards the chassis until it snaps into place.
Figure 82. Front bezel installation
After installing the front bezel:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Front panel replacement
Follow this procedure to remove and install the front panel.
Remove the front panel
Follow this procedure to remove the front panel.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
84 ThinkSystem ST50 Maintenance Manual
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the front panel:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the front bezel (see “Remove the front bezel” on page 81).
To remove the front panel, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect all the cables from the system board.
Step 2. Remove the screw that secures the front panel to the chassis, and remove the front panel.
Chapter 3.Hardware replacement procedures 85
Figure 83. Removing the front panel
After removing the front panel:
1. Install a new front panel (see “Install the front panel” on page 86).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the front panel
Follow this procedure to install the front panel.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the front panel:
1. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
86 ThinkSystem ST50 Maintenance Manual
To install the front panel, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Carefully route the cables through the gap below drive bay 4.
Figure 84. Routing the front panel cables
Step 2. Align the screw hole on the front panel to the corresponding ones on the chassis; then, secure the
front panel with three screws.
Figure 85. Installing the front panel
Chapter 3.Hardware replacement procedures 87
Step 3. Connect the front panel and USB cables to the system board. To locate the connectors on the
system board, see “System board components” on page 13.
After installing the front panel:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Heat sink and fan module replacement
Follow this procedure to remove and install the heat sink and fan module.
Remove the heat sink and fan module
Follow this procedure to remove the heat sink and fan module. This procedure must be executed by a trained
technician.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the heat sink and fan module:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Place the server on its side with the cover up.
7. Remove the system board (see “Remove the system board (trained technician only)” on page 117).
To remove the heat sink and fan module, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
88 ThinkSystem ST50 Maintenance Manual
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the fan cable from the system board.
Step 2. Loosen screw 1 and 2:
Notes:
1. Gently remove the four screws to avoid any possible damage to the system board.
2. Always keep the four screws attached to the heat sink and fan module.
3. Do not touch the thermal grease while handling the heat sink and fan module.
a. Partially loosen screw 1.
b. Fully loosen screw 2.
c. Fully loosen screw 1.
Step 3. Loosen screw 3 and 4:
a. Partially loosen screw 3.
b. Fully loosen screw 4.
c. Fully loosen screw 3.
Figure 86. Removing the heat sink and fan module
Step 4. Evenly lift the heat sink and fan module, and remove it from the system board.
After removing the heat sink and fan module:
Chapter 3.Hardware replacement procedures 89
1. If you will reuse the heat sink and fan module, remove the frame from the bottom of the system board for
later use.
Figure 87. Removing the frame
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the heat sink and the fan module
Follow this procedure to install the heat sink and the fan module. This procedure must be executed by a
trained technician.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the heat sink and the fan module:
1. Install the processor if one is not yet installed (see “Install the processor ” on page 111).
2. If you are installing a replacement heat sink and fan module, remove the frame.
90 ThinkSystem ST50 Maintenance Manual
Figure 88. Removing the frame
3. Install the frame to the bottom of the system board if necessary.
Figure 89. Installing the frame
To install the heat sink and the fan module, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Align the four screws on the heat sink and fan assembly with the corresponding screw holes on the
system board. Make sure the fan cable is close to the heat sink fan connector (See “Cable routing
for the fans” on page 22).
Chapter 3.Hardware replacement procedures 91
Figure 90. Aligning the heat sink and fan module
92 ThinkSystem ST50 Maintenance Manual
Step 2. Tighten screw 1 and 2:
a. Partially tighten screw 1.
b. Fully tighten screw 2.
c. Fully tighten screw 1.
Figure 91. Installing the heat sink and the fan module
Step 3. Tighten screw 3 and 4:
a. Partially tighten screw 3.
b. Fully tighten screw 4.
c. Fully tighten screw 3.
Step 4. Connect the fan cable to the system board.
After installing the heat sink and the fan module:
1. Install the system board (see “Install the system board (trained technician only)” on page 119).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Chapter 3.Hardware replacement procedures 93
Intrusion switch replacement
The intrusion switch generates an event in the system event log (SEL) when the server cover is not properly
installed. Follow this procedure to remove and install the intrusion switch.
Remove the intrusion switch
Follow this procedure to remove the intrusion switch.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the intrusion switch:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
To remove the intrusion switch, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the intrusion switch cable from the system board.
94 ThinkSystem ST50 Maintenance Manual
Step 2. Remove the screw that secures the intrusion switch, and remove the intrusion switch from the
chassis.
Figure 92. Removing the intrusion switch
After removing the intrusion switch:
1. Install a new intrusion switch (see “Install the intrusion switch” on page 95).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the intrusion switch
Follow this procedure to install the intrusion switch.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 95
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the intrusion switch:
1. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the intrusion switch, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Align the intrusion switch to the chassis as illustrated; then, secure it with a screw.
Figure 93. Installing the intrusion switch
Step 2. Connect the intrusion switch cable to the system board. To locate the connector on the system
board, see “System board components” on page 13.
96 ThinkSystem ST50 Maintenance Manual
After installing the intrusion switch:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
PCIe adapter replacement
Follow this procedure to remove and install a PCIe adapter.
This server comes with three PCIe slots. The adapter can be Ethernet, host bus, RAID, graphics, or any other
types that are supported, but the installation and removal procedures are the same.
Note: For a list of the supported PCIe adapters, see:https://static.lenovo.com/us/en/serverproven/index.shtml
Remove a PCIe adapter
Follow this procedure to remove a PCIe adapter.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing a PCIe adapter:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the heat sink and fan module (see “Remove the heat sink and fan module” on page 88).
7. Press the release button on the rear of the server to open the PCIe adapter retainer.
Chapter 3.Hardware replacement procedures 97
Figure 94. Opening the PCIe adapter retainer
8. Place the server on its side with the cover up.
Notes:
• The PCIe adapter might look different from the illustration.
• Make sure to read the documentation that comes with the PCIe adapter, and follow the instructions.
To remove a PCIe adapter, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Press on the retaining clip on the side of the PCIe slot to open it.
Step 2. Grasp the PCIe adapter by both edges, and gently lift it out from the PCIe slot.
98 ThinkSystem ST50 Maintenance Manual
Figure 95. Removing a PCIe adapter
Note: The PCIe adapter might be clamped by the slot tightly. In this case, gently and evenly shake
the PCIe adapter until the clamping force from the connector is significantly reduced and the
adapter becomes easily removable.
Chapter 3.Hardware replacement procedures 99
After removing a PCIe adapter:
1. Install another PCIe adapter if necessary (see “Install a PCIe adapter” on page 100). Otherwise, install a
bracket to cover the vacancy on the chassis, and close the retainer.
Figure 96. Installing a PCIe adapter bracket
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install a PCIe adapter
Follow this procedure to install a PCIe adapter.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Notes:
• The PCIe adapter might look different from the illustration.
• Make sure to read the documentation that comes with the PCIe adapter, and follow the instructions.
Before installing a PCIe adapter:
100 ThinkSystem ST50 Maintenance Manual
1. Make sure the PCIe adapter retainer is in the open position. If not, press the release button on the rear of
the chassis to open it.
Figure 97. Opening the PCIe adapter retainer
2. If a bracket lies in place, remove it and keep it for future use.
Figure 98. Removing a PCIe adapter bracket
3. Place the server on its side with the cover up.
4. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install a PCIe adapter, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Locate the applicable PCIe slot. For more information about the PCIe slots, see “Specifications” on
page 2.
Chapter 3.Hardware replacement procedures 101
Step 2. If the retaining clip on the side of the PCIe slot is closed, press on it to open it.
Step 3. Align the PCIe adapter to the slot; then, gently press both ends of the PCIe adapter until it is
securely seated in the slot with the retaining clip clicks into the locked position.
Figure 99. Installing the PCIe adapter
102 ThinkSystem ST50 Maintenance Manual
After installing the PCIe adapter:
1. Depending on the type of the PCIe adapter, you might need to connect one or more cables. For more
information, read the documentation that comes with the PCIe adapter.
2. To secure the installed adapter, pivot the retainer towards the chassis until it snaps into the locked
position.
Figure 100. Closing the PCIe adapter retainer
3. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Power supply unit replacement
Follow this procedure to remove and install the fixed power supply unit.
This server supports one unit of fixed power supply of the following types:
• 250-watt
• 400-watt
Remove the power supply unit
Follow this procedure to remove the power supply unit.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 103
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
S029
DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• Connect all power cords to a properly wired and grounded power source.
• Connect to properly wired power sources any equipment that will be attached to this product.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached ac power cords, dc power sources, network connections,
telecommunications systems, and serial cables before you open the device covers, unless you
are instructed otherwise in the installation and configuration procedures.
• Connect and disconnect cables as described in the following table when installing, moving, or
opening covers on this product or attached devices.
To Connect: To Disconnect:
1. Turn OFF all power sources and equipment that is to
be attached to this product.
2. Attach signal cables to the product.
3. Attach power cords to the product.
• For ac systems, use appliance inlets.
• For dc systems, ensure correct polarity of -48 V dc
connections: RTN is + and -48 V dc is -. Earth
ground should use a two-hole lug for safety.
4. Attach signal cables to other devices.
5. Connect power cords to their sources.
6. Turn ON all the power sources.
1. Turn OFF all power sources and equipment that is to
be attached to this product.
• For ac systems, remove all power cords from the
chassis power receptacles or interrupt power at
the ac power distribution unit.
• For dc systems, disconnect dc power sources at
the breaker panel or by turning off the power
source. Then, remove the dc cables.
2. Remove the signal cables from the connectors.
3. Remove all cables from the devices.
104 ThinkSystem ST50 Maintenance Manual
S035
CAUTION:
Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage,
current, and energy levels are present inside any component that has this label attached. There are no
serviceable parts inside these components. If you suspect a problem with one of these parts, contact
a service technician.
Before removing the power supply unit:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Place the server on its side with the cover up.
To remove the power supply unit, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect both cables from the system board.
Step 2. Remove the four screws that secure the power supply unit.
Chapter 3.Hardware replacement procedures 105
Figure 101. Removing the power supply unit
Step 3. Gently push the power supply unit towards the front of the server, and remove it from the chassis.
After removing the power supply unit:
1. Install another power supply unit (see “Install the power supply unit” on page 106).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the power supply unit
Follow this procedure to install the power supply unit.
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
S029
106 ThinkSystem ST50 Maintenance Manual
DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• Connect all power cords to a properly wired and grounded power source.
• Connect to properly wired power sources any equipment that will be attached to this product.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached ac power cords, dc power sources, network connections,
telecommunications systems, and serial cables before you open the device covers, unless you
are instructed otherwise in the installation and configuration procedures.
• Connect and disconnect cables as described in the following table when installing, moving, or
opening covers on this product or attached devices.
To Connect: To Disconnect:
1. Turn OFF all power sources and equipment that is to
be attached to this product.
2. Attach signal cables to the product.
3. Attach power cords to the product.
• For ac systems, use appliance inlets.
• For dc systems, ensure correct polarity of -48 V dc
connections: RTN is + and -48 V dc is -. Earth
ground should use a two-hole lug for safety.
4. Attach signal cables to other devices.
5. Connect power cords to their sources.
6. Turn ON all the power sources.
1. Turn OFF all power sources and equipment that is to
be attached to this product.
• For ac systems, remove all power cords from the
chassis power receptacles or interrupt power at
the ac power distribution unit.
• For dc systems, disconnect dc power sources at
the breaker panel or by turning off the power
source. Then, remove the dc cables.
2. Remove the signal cables from the connectors.
3. Remove all cables from the devices.
S035
CAUTION:
Never remove the cover on a power supply or any part that has this label attached. Hazardous voltage,
current, and energy levels are present inside any component that has this label attached. There are no
serviceable parts inside these components. If you suspect a problem with one of these parts, contact
a service technician.
Before installing the power supply unit,
Chapter 3.Hardware replacement procedures 107
1. Make sure the type of power supply is applicable to server drive configuration.
2. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install the power supply unit, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Align the four screw holes on the power supply units with the corresponding ones on the chassis;
then, secure the power supply with four screws.
Figure 102. Installing the power supply unit
108 ThinkSystem ST50 Maintenance Manual
Step 2. Connect the processor and system power cables to the system board.
Figure 103. Connecting power supply cables
Table 27. Power supply cables
1 To processor power connector (four-pin) 2 To system power connector (ten-pin)
After installing the power supply unit:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Processor replacement
Use the following procedures to remove and install a processor.
Attention: Before you begin replacing a processor, make sure that you have an alcohol cleaning pad (part
number 00MP352) and gray thermal grease (part number 41Y9292).
Remove the processor
Follow this procedure to remove the processor. This procedure must be executed by a trained technician.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 109
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the processor:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Place the server on its side with the cover up.
7. Remove the system board (see “Remove the system board (trained technician only)” on page 117).
8. Remove the heat sink and fan module (see “Remove the heat sink and fan module” on page 88).
To remove the processor, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Gently pull the handle away from the processor retainer.
110 ThinkSystem ST50 Maintenance Manual
Step 2. Lift the handle along with the retainer to the fully open position.
Figure 104. Opening the processor retainer
Step 3. Hold the processor by both sides and gently lift it away from the processor socket.
Notes:
1. Do not touch the gold contacts on the bottom of the processor.
2. Keep the processor socket clean from any object to prevent possible damages.
After removing the processor, perform one of the following tasks immediately:
• Install the replacement processor.
1. Install the replacement processor to the system board (see “Install the processor ” on page 111).
2. Package the defective processor that was removed, and return it to Lenovo. To prevent any shipping
damage, reuse the packaging of the new processor, and follow all available packaging instructions.
or
• Install the processor that you removed to the replacement system board.
1. Install the removed processor to the replacement system board (see “Install the processor ” on page
111).
2. Package the defective system board, and return it to Lenovo. To prevent any shipping damage, reuse
the packaging of the new system board, and follow all available packaging instructions.
Install the processor
Follow this procedure to install the processor. This procedure must be executed by a trained technician.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 111
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the processor:
1. If the processor to be installed was removed from another system board, wipe the thermal grease from
the processor with an alcohol cleaning pad, and dispose of the cleaning pad after all of the thermal
grease is removed.
Note: If you are applying new thermal grease on the top of the processor, make sure to do it after the
alcohol has fully evaporated.
2. Apply the thermal grease on the top of the processor with syringe by forming four uniformly spaced
dots, while each dot consists of about 0.1 ml of thermal grease.
Figure 105. Proper shape of the thermal grease
To install the processor, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Hold the processor by both sides, and align the following:
1. Align 1 the small notches on the processor to 2 the tabs on the socket.
2. Align 3 the small triangle of the processor to 4 the beveled corner on the socket.
Then, gently lower the processor evenly into the socket.
112 ThinkSystem ST50 Maintenance Manual
Figure 106. Installing the processor
Step 2. Close the processor retainer, and push the handle to the locked position.
Figure 107. Closing the processor retainer
After installing the processor:
1. Install the heat sink and fan assembly (see “Install the heat sink and the fan module” on page 90).
2. Install the system board (see “Install the system board (trained technician only)” on page 119).
3. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Server cover replacement
Follow this procedure to remove and install the server cover.
Remove the server cover
Follow this procedure to remove the server cover.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 113
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the server cover:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
Complete the following steps to remove the server cover:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Remove the two screws that secure the cover to the chassis.
114 ThinkSystem ST50 Maintenance Manual
Figure 108. Removing the server cover
Step 2. Press and hold on the release button, and slide the cover towards the rear of the server to remove
it.
Attention: For proper cooling, always install the server cover before powering on the server.
Operating the server without the cover properly installed might result in server component damage.
After removing the server cover:
1. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the server cover
Follow this procedure to install the server cover.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
Chapter 3.Hardware replacement procedures 115
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the server cover:
1. Ensure that all adapters and other components are installed and seated correctly, and that you have not
left loose tools or parts inside the server.
2. Ensure that all internal cables are correctly routed. See “Internal cable routing” on page 15.
3. If you are installing a new server cover, attach the service label to the inside of the new server cover if
necessary.
Note: A new server cover comes without a service label attached. If you need a service label, order it
together with the new server cover. The service label is free of charge.
To install the server cover, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
116 ThinkSystem ST50 Maintenance Manual
Step 1. Align the server cover to the slots on the side of the chassis, and slide it towards the front of the
chassis until it snaps in place.
Figure 109. Installing the server cover
Note: Before sliding the cover in, ensure that all the tabs on the cover align to the slots and engage
the chassis properly.
Step 2. Secure the cover to the chassis with two screws.
After installing the server cover:
1. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
System board replacement
Follow this procedure to remove and install the system board.
Remove the system board (trained technician only)
Follow this procedure to remove the system board. This procedure must be executed by a trained
technician.
Chapter 3.Hardware replacement procedures 117
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the system board:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Record all the settings in the Setup Utility, as you might have to re-enter these settings after replacing
the system board.
3. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
4. If the server is in a rack, remove it from the rack.
5. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
6. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
7. Place the server on its side with the cover up.
8. Disconnect all the cables connected to the system board.
Attention: Disengage all latches, cable clips, release tabs, or locks on cable connectors beforehand.
Failing to release them before removing the cables will damage the cable connectors on the system
board. Any damage to the cable connectors may require system board replacement.
9. Remove all the PCIe adapters (see “Remove a PCIe adapter” on page 97).
10. Remove all the DIMMs (see “Remove a DIMM” on page 35).
To remove the system board, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Remove the eight screws that secure the system board in the order as illustrated, and keep them
for future use.
118 ThinkSystem ST50 Maintenance Manual
Figure 110. System board screw removal sequence
Step 2. Gently grasp the system board by the edges and remove it from the chassis.
After removing the system board:
1. Remove the heat sink and fan module and the processor if necessary (see “Remove the heat sink and
fan module” on page 88 and “Remove the processor” on page 109).
2. Install another system board (see “Install the system board (trained technician only)” on page 119).
3. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the system board (trained technician only)
Follow this procedure to install the system board. This procedure must be executed by a trained technician.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the system board:
1. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
Chapter 3.Hardware replacement procedures 119
2. Install the processor to the system board (see “Install the processor ” on page 111).
3. Install the heat sink and the fan module to the system board (see “Install the heat sink and the fan
module” on page 90).
To install the system board, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Align the serial port with the corresponding opening on the rear of the chassis; then, gently lower
the system board into the chassis.
Figure 111. Installing the system board
Step 2. Secure the system board to the chassis with eight screws in the following order.
Figure 112. System board screw installation sequence
After installing the system board:
1. Install the CMOS battery if necessary (see “Install the CMOS battery” on page 33).
120 ThinkSystem ST50 Maintenance Manual
2. Install the DIMMs (see “Install a DIMM” on page 38).
3. Install the PCIe adapters (see “Remove a PCIe adapter” on page 97).
4. Reconnect all the cables that were disconnected.
5. Complete the parts replacement. See “Complete the parts replacement” on page 124.
6. Update VPD (see “Update VPD (Vital Product Data)” on page 121).
Update VPD (Vital Product Data)
VPD (Vital Product Data) must be updated after the system board is replaced.
Step 1. Insert a USB flash drive to the server, and format it.
Step 2. Go to https://datacentersupport.lenovo.com/products/servers/thinksystem/st50/7y48/downloads.
Select Software and Utilities, and download The uEFI VPD SMBIOS Information Update Utility.
Step 3. Copy and paste the folder that is named efi and amideefix64.efi to the root folder of the USB flash
drive. Make sure the path to bootX64.efi is FS0:\efi\boot\bootX64.efi.
Step 4. Restart the system. Before the operating system starts up, press F1 to enter the Setup Utility. Go to
Security ➙ Secure Boot, and disable the option.
Step 5. Go to Startup ➙ CSM, and disable the option.
Step 6. Restart the system. Before the operating system starts up, repeatedly press and release F12 until
Startup Device Menu is displayed; then, select the USB flash drive and press Enter. The server will
start up from the USB flash rive.
Step 7. Update VPD SMBIOS with the following AMIBIOS DMI Editor commands:
AMIDEEFIx64.efi [option1] [option2] ... [optionX]
Options:
/SP "String" Update the System Machine Type and Model Number.
Example:
fs0:\..\amideefix64.efi /sp "7Y48CTO1WW"
/SS "String" Update the System Serial Number.
Example:
fs0:\..\amideefix64.efi /ss "J300ST50"
/SU auto Update the System UUID.
/SV "String" Update the System Brand ID.
Example:
fs0:\..\amideefix64.efi /sv "ThinkSystem ST50"
Step 8. After the VPD SMBIOS update is completed, remove the USB flash drive, and press ALT + CTRL +
DEL to restart the system.
Step 9. Before the operating system starts up, press F1 to enter the Setup Utility. Go to Main ➙ System
Summary to make sure VPD has been properly updated.
Thermal sensor replacement
Follow this procedure to remove and install the thermal sensor.
Chapter 3.Hardware replacement procedures 121
Remove the thermal sensor
Follow this procedure to remove the thermal sensor.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before removing the thermal sensor:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
guidelines” on page 29).
2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables (see
“Power off the server” on page 7).
3. If the server is in a rack, remove it from the rack.
4. Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.
5. Remove the server cover (see “Remove the server cover” on page 113).
CAUTION:
The heat sinks and processor could be very hot. To avoid from burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
6. Remove the front bezel (see “Remove the front bezel” on page 81).
To remove the thermal sensor, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Step 1. Disconnect the thermal sensor cable from the system board.
Step 2. Press the retaining clip on the top of the thermal sensor, and pull to remove the sensor from the
chassis.
122 ThinkSystem ST50 Maintenance Manual
Figure 113. Removing the thermal sensor
After removing the thermal sensor:
1. Install another thermal sensor (see “Install the thermal sensor” on page 123).
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install the thermal sensor
Follow this procedure to install the thermal sensor.
“Read the
installation
Guidelines” on
page 29
“Power off
the server for
this task” on
page 7
“ATTENTION:
Static Sensitive Device
Ground package before opening”
on page 31
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Before installing the thermal sensor:
1. Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
To install a thermal sensor, complete the following steps:
Watch the procedure. A video of this procedure is available from the following links:
• YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs-BY5kWQWpadP6EwGTGfk1-j
• Youku: https://list.youku.com/albumlist/show/id_51948225
Chapter 3.Hardware replacement procedures 123
Step 1. Route the thermal sensor cable through the hole on the front of the chassis as illustrated.
Figure 114. Installing the thermal sensor
Step 2. Align the sensor to the corresponding holes on the front of the chassis, and push the sensor
towards the chassis until it clicks into place.
Step 3. Connect the thermal sensor cable to the system board. To locate the connector on the system
board, see “System board components” on page 13.
After installing the thermal sensor:
1. Install the front bezel (see “Install the front bezel” on page 83).
2. Proceed to complete the parts replacement (see “Complete the parts replacement” on page 124).
Complete the parts replacement
Follow this procedure to complete the parts replacement.
To complete the parts replacement, do the following:
1. Ensure that all the removed components have been reinstalled correctly and that no tools or loose
screws are left inside the server.
2. Properly route and secure the cables in the server. Refer to the cable connecting and routing information
for each component.
3. If the server cover has been removed, reinstall it. See “Install the server cover” on page 115.
4. If the server was removed from the rack previously, put it back into the rack.
5. Reconnect external cables and power cords to the server.
Attention: To avoid component damage, connect all the other cables before connecting the power
cords .
6. Update the server configuration if necessary.
• Download and install the latest device drivers: http://datacentersupport.lenovo.com
• Update the system firmware..
124 ThinkSystem ST50 Maintenance Manual
Chapter 4. Problem determination
Use the information in this section to isolate and resolve issues that you might encounter while using your
server.
Event logs
Logs of system events are available in Setup Utility.
Setup Utility provides the list of system event log that is available in the security tab. Start the server and
press F1 to access Setup Utility, and go to Security ➙ System Event Log ➙ View System Event Log to
access the list of events.
Following is the list of events that might appear in the system event log.
Table 28. List of log events in Setup Utility
Event description
Setup data integrity check failure
Memory size decreased
Fan failure
Power supply overload
BIOS password changed
BIOS Setup data changed
Chassis intrusion
Password retry count exceeded
SATA device configuration changed
BIOS updated
Option ROM over Shadow RAM size
Hard disk password changed
PCI Mem Conflict
System event log cleared
General problem determination procedures
Use the information in this section to resolve problems if the event log does not contain specific errors or the
server is inoperative.
If you are not sure about the cause of a problem and the power supplies are working correctly, complete the
following steps to try to resolve the problem:
1. Check in Setup Utility and make sure all the installed components are enabled.
2. Make sure the firmware of the installed components are the latest version.
3. Turn off the server.
4. Ensure that the server is cabled correctly.
© Copyright Lenovo 2018, 2020 125
5. Remove or disconnect the following devices, one at a time, until you find the failure. Turn on and
configure the server each time you remove or disconnect a device.
• Any external devices
• Surge-suppressor device (on the server)
• Printer, mouse, and non-Lenovo devices
• Each adapter
• Storage drives
• One memory module at a time until you reach the minimum configuration that is supported for the
server
Note: The minimum configuration required for the server to start is one processor and one 4 GB DIMM.
6. Turn on the server.
7. Listen to the POST error beeps.
Table 29. POST error beeps
Beep Error description
Two short ones There is one or more POST error.
Three short one followed by one long one No memory is detected by the system.
Two long one followed by three short ones No video adapter is detected by the system.
Four long ones • Error “8998 - No enough shadow RAM resources for option
ROM” on page 128: insufficient RAM resources
• Error “8999 - No enough PCIe/PCI MMIO resources” on page
128: insufficient PCIe/PCI MMIO resources
Note: A short beep lasts about 0.5 second, while a long one lasts about one second.
If the problem is solved after an adapter is removed from the server, but recurs after it is reinstalled, suspect
the adapter. If the problem recurs when the adapter is replaced with a different one, try the original adapter in
a different PCIe slot.
If the problem appears to be a networking one while the server passes all system diagnostics, suspect a
network cabling problem that is external to the server.
List of POST error messages
See this section for the list of POST error and related information.
00CE - Machine Type or Serial Number is INVALID
Machine type or serial number invalid.
This error message will be displayed if one of the following conditions is true:
1. Machine type and model name is invalid.
2. System serial number is invalid.
0135 - Fan Failure
Fan related failures.
This error message will be displayed if one of the following malfunctions occurs:
1. Heat sink fan failure
2. Front fan failure
3. Rear fan failure
126 ThinkSystem ST50 Maintenance Manual
4. Optical disk drive fan failure
0211 - Keyboard Not Found
No keyboard is found.
This error message will be displayed when no keyboard (PS/2 or USB) is detected.
0164 - Memory Size Decreased
Memory size is decreased.
When Configuration Change Detection is enabled, this error message will be displayed when the memory
size is decreased.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
1762 - SATA Device Configuration Change Has Occurred
SATA device configuration has been changed.
When Configuration Change Detection is enabled, this error message will be displayed when there is any
configuration change related to SATA drives, including optical drives.
Notes:
1. Change the drive SATA connectors will cause this error.
2. To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
1962 - No Operating System Found
No Operating System Found. Boot sequence will automatically repeat.
This error is not a general POST error, since it occurs after the POST finished. If there are no other bootable
devices in the current boot sequence, this error message will be displayed and followed by an automatic
boot sequence after one second.
0162 - Setup data integrity check failure
This error message indicates the checksum of BIOS Setup data in NVRAM is bad.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
0167 - No Processor Microcode Update Found
This error message indicates that there is no microcode update image exists for the current processor.
0175 - System Security - Security data corrupted
This error message indicates the stored security data is corrupted.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
0176 - System Security - The system has been tampered with
The system has been tampered with.
When Chassis Intrusion Function is enabled, this error will be displayed when the cover is not properly
installed before the server is powered on.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
Chapter 4.Problem determination 127
0189 - System Security - Cannot read the Security EEPROM
The Security EEPROM cannot be accessed.
During POST, a read/write test is performed to verify access to the Security EEPROM. This error message
indicates that the Security EEPROM may be corrupted or removed.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
0197 - System Security - Unauthorized security data change detected
There is unauthorized security data change.
During POST, the hash of current security data is computed and compared with the one kept in security
EEPROM. If they are not the same, this error will be displayed.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
0190 - System Security - Invalid security change requested
An invalid request of security change is received.
During POST, CRC of the data stored in security EEPROM block 7 is computed and compared with the one
kept in the block 7. If they do not match, this error will be displayed.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
0199 - System Security - Security password retry count exceeded on last boot
Wrong passwords are inputted for more than the number of times that is allowed.
When Security Password Count Exceeded Error is enabled, this error will be displayed after wrong
passwords are inputted over maximal number of times. Select F2 to resume and input the correct password.
To clear this error from the list of POST events, go do Setup Utility and select Save Changes and Exit.
8997 - System firmware has detected the system configuration may exceed the
power supply capacity
The required amount of power of the present system configuration is more than the power supply could
afford.
This error will be displayed when the system algorithm determines that present power consumption exceeds
the capacity of the installed power supply unit. This error message is supposed to be displayed for at least
five seconds and follow by another boot.
8998 - No enough shadow RAM resources for option ROM
Not enough shadow RAM resources for option ROM. Not all devices are initialized. Please remove some
add-on cards or change to UEFI mode in BIOS Setup Utility.
This error message indicates some devices are not properly initiated. Remove them or change the settings in
Setup Utility. It will be displayed for at least five seconds before the next boot.
8999 - No enough PCIe/PCI MMIO resources
Not enough PCIe/PCI MMIO resources. Currently only one video card is enabled. Please remove some PCIe
cards, or enter BIOS Setup Utility and enable “Above 4GB Decode” if using a 64-bit OS.
128 ThinkSystem ST50 Maintenance Manual
This error will be displayed when there is no enough PCIe/PCI MMIO resources following a reboot and with
the attempt to initialize the primary video device to display this error message. This error will be displayed for
at least five seconds before the next boot. Remove some PCIe adapters in Setup Utility to solve this error.
Resolving suspected power problems
Power problems can be difficult to solve. For example, a short circuit can exist anywhere on any of the power
distribution buses. Usually, a short circuit will cause the power subsystem to shut down because of an
overcurrent condition.
Complete the following steps to diagnose and resolve a suspected power problem.
Step 1. Check for short circuits, for example, if a loose screw causes short circuit on a circuit board.
Step 2. Remove the adapters and disconnect the cables and power cords to all internal and external
devices until the server is at the minimum configuration that is required for the server to start. See
“Specifications” on page 2 to determine the minimum configuration for the server.
Step 3. Reconnect all AC power cords and turn on the server. If the server starts successfully, reseat the
adapters and devices one at a time until the problem is isolated.
If the server does not start from the minimum configuration, replace the components in the minimum
configuration one at a time until the problem is isolated.
Resolving suspected Ethernet controller problems
The method that you use to test the Ethernet controller depends on which operating system you are using.
See the operating-system documentation for information about Ethernet controllers, and see the Ethernet
controller device-driver readme file.
Complete the following steps to try to resolve suspected problems with the Ethernet controller.
Step 1. Make sure that the correct device drivers which come with the server are installed, and that they
are at the latest level.
Step 2. Make sure that the Ethernet cable is installed correctly.
• The cable must be securely attached at all connections. If the cable is attached but the problem
remains, try a different cable.
• If you set the Ethernet controller to operate at 100 Mbps or 1000 Mbps, you must use Category
5 cabling.
Step 3. Determine whether the hub supports auto-negotiation. If it does not, try configuring the integrated
Ethernet controller manually to match the speed and duplex mode of the hub.
Step 4. Check the Ethernet controller LEDs on the rear panel of the server. These LEDs indicate whether
there is a problem with the connector, cable, or hub.
• The Ethernet link status LED is lit when the Ethernet controller receives a link pulse from the hub.
If the LED is off, there might be a defective connector or cable or a problem with the hub.
• The Ethernet transmit/receive activity LED is lit when the Ethernet controller sends or receives
data over the Ethernet network. If the Ethernet transmit/receive activity is off, make sure that the
hub and network are operating and that the correct device drivers are installed.
Step 5. Check for operating-system-specific causes of the problem, and also make sure that the operating
system drivers are installed correctly.
Step 6. Make sure that the device drivers on the client and server are using the same protocol.
If the Ethernet controller still cannot connect to the network, but the hardware appears to be working, the
network administrator must investigate other possible causes of the error.
Chapter 4.Problem determination 129
Troubleshooting by symptom
Follow this procedure to find solutions to problems that have identifiable symptoms.
To use the symptom-based troubleshooting information in this section, complete the following steps:
1. Review this section to find the symptoms that you are experiencing, and follow the suggested actions to
resolve the issue.
2. If the problem persists, contact support (see “Contacting Support” on page 142).
Power on and power off problems
Follow this procedure to resolve issues when powering on or powering off the server.
• “Embedded hypervisor is not in the boot list” on page 130
• “The server does not power on” on page 130
• “Server powers off unexpectedly” on page 131
• “Server does not power off” on page 131
• “Message “ME BIOS SYNC - Get Redirection Features State Error” is displayed in the booting screen
with Intel Celeron series (G49xx) processors” on page 131
Embedded hypervisor is not in the boot list
Complete the following steps until the problem is solved.
1. If the server has been installed, moved, or serviced recently, or if this is the first time the embedded
hypervisor is being used, make sure that the device is connected properly and that there is no physical
damage to the connectors.
2. See the documentation that comes with the optional embedded hypervisor device for setup and
configuration information.
3. Make sure that software that is installed in the device works on another server to ensure that the device
works properly.
4. Check https://static.lenovo.com/us/en/serverproven/index.shtml to validate that the embedded hypervisor
device is supported by the server.
5. Make sure that the embedded hypervisor device is included in the list of available boot options. To view
the list of boot sequences, go to Setup Utility, select Startup ➙ Primary Boot Sequence.
6. Check http://datacentersupport.lenovo.com for any tech tips (service bulletins) related to the embedded
hypervisor and the server.
The server does not power on
Complete the following steps until the problem is solved.
Note: The power button will not function until approximately one to three minutes after the server is
connected to ac power.
1. Remove any optional devices that were installed recently. System power problems caused by addition
of a device indicates this device is either incompatible or too much for the power supply to support.
2. Make sure the power cord is securely connected to the server and to a working electrical outlet.
Disconnect and reconnect or replace the server power cord.
3. Remove and reinstall the power supply. If the problem persists, replace the power supply.
130 ThinkSystem ST50 Maintenance Manual
4. Disconnect and reconnect the front panel cable (see “System board components” on page 13 for the
location of the connector on the system board). If the problem persists, replace the front panel.
Server powers off unexpectedly
Complete the following steps until the problem is solved.
1. Make sure the room temperature does not cause overheating, and no object is blocking the airflow in
front and back of the server.
2. Remove any optional devices that were installed recently. System power problems caused by addition
of a device indicates this device is either incompatible or too much for the power supply to support.
3. Make sure the power cord is securely connected to the server and to a working electrical outlet.
Disconnect and reconnect or replace the server power cord.
4. Reseat the power supply. If the problem persists, replace the power supply.
Server does not power off
Complete the following steps until the problem is solved.
1. Determine whether you are using an Advanced Configuration and Power Interface (ACPI) or a non-ACPI
operating system. If you are using a non-ACPI operating system, complete the following steps:
a. Press Ctrl+Alt+Delete.
b. Turn off the server by pressing and holding the power button for five seconds.
c. Power on the server.
d. If the server fails POST and the power button does not work, disconnect the power cord for 20
seconds; then, reconnect the power cord and power on the server.
2. If the problem persists or if you are using an ACPI-aware operating system, suspect the system board.
Message “ME BIOS SYNC - Get Redirection Features State Error” is displayed in the booting screen
with Intel Celeron series (G49xx) processors
1. Go to Setup Utility, select Advance ➙ Intel(R) Manageability , and select Disabled.
2. Select Save & Exit. The error message will not be displayed again in the next booting screen.
Memory problems
Follow this procedure to resolve issues related to memory.
• “Displayed system memory less than installed physical memory” on page 131
Displayed system memory less than installed physical memory
Note: Each time you install or remove a DIMM, you must disconnect the server from the power source; then,
wait 10 seconds before restarting the server.
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Make sure that:
• The DIMMs are supported by the server (see https://static.lenovo.com/us/en/serverproven/index.shtml).
• The DIMMs are properly installed. Examine if the is any gap between the connector and the DIMM.
Remove and install the DIMM if there is any.
Chapter 4.Problem determination 131
3. If the server comes with Lenovo XClarity Provisioning Manager Lite, go to Diagnostics ➙ Memory test
to perform diagnostics on the DIMMs. Replace the DIMM that is displayed as faulty. Otherwise, skip to
the next step.
4. Remove the DIMMs until the system reaches minimal memory requirement; then, add one DIMM and
reboot the server, and repeat the step if the problem does not recur. If the problem occurs after addition
of a DIMM, replace it.
Hard disk drive problems
Follow this procedure to resolve issues related to the hard disk drives.
• “Server cannot recognize a drive” on page 132
• “Multiple hard drives fail” on page 132
• “A replacement drive does not rebuild” on page 132
• “Suspected RAID volume failure” on page 133
Server cannot recognize a drive
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Make sure that:
• The drive is supported by the server (see https://static.lenovo.com/us/en/serverproven/index.shtml).
• The drive is properly installed with signal and power cables properly connected.
3. Make sure the drive is enabled. Go to Setup Utility and select Devices ➙ ATA Drive Setup to see if the
drive in question is enabled. If not, enable it.
4. If the server comes with LXPM Lite, go to Diagnostics ➙ HDD test to perform diagnostics on the drives.
Replace the drive that is displayed as faulty. Otherwise, skip to the next step.
5. Remove the drives until the system reaches minimal drive requirement; then, add one drive and restart
the server, and repeat the step if the problem does not recur. If the problem occurs after addition of a
drive, replace it.
Multiple hard drives fail
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. If the server comes with Lenovo XClarity Provisioning Manager Lite, go to Diagnostics ➙ HDD test to
perform diagnostics on the drives. Replace the drive that is displayed as faulty. Otherwise, skip to the
next step.
3. Remove the drives until the system reaches minimal drive requirement; then, add one drive and reboot
the server, and repeat the step if the problem does not recur. If the problem occurs after addition of a
drive, replace it.
A replacement drive does not rebuild
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
132 ThinkSystem ST50 Maintenance Manual
2. If the server comes with Lenovo XClarity Provisioning Manager Lite, go to Diagnostics ➙ RAID Log.
Look for related errors and solve them. Otherwise, skip to the next step.
3. Review the document that came with the RAID adapter to make sure RAID is set properly.
Suspected RAID volume failure
The following two symptoms serve as indicator of ThinkSystem RAID adapter virtual driver failure:
• If the virtual driver application is installed in a bootable Operating System drive, the system, unable to
boot, stays in POST screen with message of Error 1962: No Operating system found. Boot sequence will
automatically resume.
• Otherwise, the drive is missing from disk management options in the operating system.
Complete the following steps until the problem is solved.
1. Reboot the system, press F1 to go to Setup Utility, and select Devices. See if the option of AVAGO
MRAID <RAID xxx-xx> Configuration Utility - xx.xx.xx.xx exists in this tab.
2. If the option is missing, select Driver Health ➙ AVAGO EFI SAS Driver Failed ➙ RAID xxx-xx
Configuration Required ➙ Enter Your Input Here, and type C then Y. After that, AVAGO MRAID
Configuration Utility - xx.xx.xx.xx should appear in Devices tab. If it is
3. If it is possible to replace the faulty drive immediately:
a. Go to AVAGO MRAID <RAID xxx-xx> Configuration Utility - xx.xx.xx.xx ➙ Main Menu ➙ Drive
Management to identify the faulty drive.
b. Power off the system, and replace the drive (see “Drive replacement” on page 40).
c. Power on the system. The virtual driver will start rebuilding immediately.
If it requires Lenovo support to possible to replace:
a. Go to AVAGO MRAID <RAID xxx-xx> Configuration Utility - xx.xx.xx.xx ➙ Controller
Management ➙ Advanced Controller Properties ➙ Boot Mode ➙ Ignore errors, and select
Apply Changes.
b. Reboot the system. The virtual driver will be able to continue working.
c. Call Lenovo support to replace the drive.
Monitor and video problems
Follow this procedure to solve problems related to a monitor or video.
• “Incorrect characters are displayed” on page 133
• “Screen is blank” on page 133
• “Screen goes blank when you start some application programs” on page 134
• “The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted.” on page 134
Incorrect characters are displayed
Complete the following steps until the problem is solved.
1. Verify that the language and locality settings are correct for the keyboard and operating system.
2. If the wrong language is displayed, update the server firmware to the latest level.
Screen is blank
Complete the following steps until the problem is solved.
Chapter 4.Problem determination 133
1. If you have installed new DIMMs recently, make sure the capacity of the new DIMMs are the same as the
previously installed ones. If not, remove the newly installed DIMMs, and power on the server again.
2. If a graphical adapter is installed, wait for a while as it takes about three minutes before Lenovo logo is
displayed.
3. If there are other monitors that are connected to the server, remove them.
4. Make sure that:
• The server is turned on.
• The monitor cables are securely connected.
• The monitor is turned on with brightness and contrast controls adjusted correctly.
5. Disconnect the cable and select another video connector for connection.
6. Replace the following components one at a time, in the order shown, restarting the server each time:
a. Monitor cable
b. Monitor
c. Video adapter (if one is installed)
d. (Trained technician only) System board
Screen goes blank when you start some application programs
Complete the following steps until the problem is solved.
1. Make sure that:
• The application program is not set in a display mode with resolution that is higher than the capability
of the monitor (1152 x 864).
• The necessary device drivers for the application are all installed.
The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted.
Complete the following steps until the problem is solved.
1. If the monitor self-tests show that the monitor is working correctly, examine the location of the monitor.
Magnetic fields around other devices (such as transformers, appliances, fluorescent, and other monitors)
can cause screen jitter or wavy, unreadable, rolling, or distorted screen images. If this happens, turn off
the monitor.
Attention: Moving a color monitor while it is turned on might cause screen discoloration.
Move the device and the monitor at least 305 mm (12 inches) apart, and turn on the monitor.
Notes:
a. To prevent diskette drive read/write errors, make sure that the distance between the monitor and any
external diskette drive is at least 76 mm (3 inches).
b. Non-Lenovo monitor cables might cause unpredictable problems.
2. Disconnect and reconnect the monitor cable.
3. Replace the following components one at a time, in the order shown, restarting the server each time:
a. Monitor cable
b. Monitor
c. Video adapter (if one is installed)
d. (Trained technician only) System board
Keyboard, mouse, or USB-device problems
Follow this procedure to solve problems related to a keyboard, mouse, or USB device.
134 ThinkSystem ST50 Maintenance Manual
• “Keyboard or mouse does not work” on page 135
• “USB-device does not work” on page 135
• “Unable to use the configuration USB Key (setup.bin) to configure Intel AMT” on page 135
Keyboard or mouse does not work
Complete the following steps until the problem is solved.
1. Make sure that:
• The keyboard/mouse cable is securely connected.
• The server and the monitor are both turned on.
• The latest version of corresponding driver is installed.
• USB keyboard/mouse function is enabled. Go to Setup Utility, and select Devices ➙ USB Setup ➙
USB Legacy Support to examine the status. If it is disabled, enable it.
2. If the keyboard/mouse is connected to a USB hub, remove the keyboard from the hub, and connect it
directly to the server.
3. Disconnect the keyboard/mouse and connect it to another USB connector.
4. If the problem recurs, replace the keyboard/mouse.
USB-device does not work
Complete the following steps until the problem is solved.
1. Make sure that:
• The device is supported by the server (see https://static.lenovo.com/us/en/serverproven/index.shtml).
• The corresponding USB device driver is installed.
• The operating system supports USB devices.
• The USB port adopted is enabled. Go to Setup Utility, and select Devices ➙ USB Setup to examine
the status. If it is disabled, enable it. Make sure USB Support is enabled, too.
2. If the device is connected to a USB hub, remove the device from the hub, and connect it directly to the
server.
3. Disconnect the keyboard and connect it to another USB connector.
4. If the problem recurs, replace the device.
Unable to use the configuration USB Key (setup.bin) to configure Intel AMT
Complete the following steps until the problem is solved.
1. Reboot the system.
2. Go to Setup Utility, and select Advanced ➙ Intel ® Manageability ➙ USB Provisioning, and enable it.
3. Press F10 to save the setting.
Optional-device problems
Follow this procedure to solve problems related to optional devices.
• “PCIe adapter is not recognized or is not functioning” on page 135
• “A Lenovo optional device that worked previously does not work now. ” on page 136
• “A Lenovo optional device that was just installed does not work.” on page 136
• “A Lenovo optional device that worked previously does not work now. ” on page 136
PCIe adapter is not recognized or is not functioning
Complete the following steps until the problem is solved.
Chapter 4.Problem determination 135
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Make sure that:
• The device is supported by the server (see https://static.lenovo.com/us/en/serverproven/index.shtml).
• The latest version of corresponding driver is installed.
• The device is seated correctly without physical damage on the device or connector.
• System firmware has been updated to the latest version.
3. Remove the device and install it to another PCIe slot if possible.
4. Check http://datacentersupport.lenovo.com for any tech tips (also known as retain tips or service
bulletins) that might be related to the adapter.
Insufficient PCIe resources are detected.
Complete the following steps until the problem is solved.
1. Remove any devices that were installed recently, and restart the server. If none was recently installed,
remove one of the PCIe adapters.
2. Go to Setup Utility and select Devices ➙ PCI Express Configuration; then, modify the setting to a
lower speed. For example, modify Auto or Gen3 to Gen2 or Gen1.
3. Save the settings and restart the server.
4. Depending on whether or not the restart is successful:
• If it is successful, shut down the server and reinstall the removed PCIe adapters one at a time, and
restart the server again after each addition.
• If it fails, remove another PCIe adapter and restart the server again.
A Lenovo optional device that was just installed does not work.
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Make sure that:
• The device is supported by the server (see https://static.lenovo.com/us/en/serverproven/index.shtml).
• The latest version of corresponding driver is installed.
• The device is seated correctly without physical damage on the device or connector.
• System firmware has been updated to the latest version.
• You followed the installation instructions that came with the device, and the device is installed
properly.
• You have not loosened any other installed devices or cables.
3. Reseat the device.
4. Replace the device.
A Lenovo optional device that worked previously does not work now.
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Make sure that all of the cables are securely connected.
3. If the device comes with test instructions, use those instructions to test the device.
4. Reseat the failing device.
5. Replace the failing device.
136 ThinkSystem ST50 Maintenance Manual
Intermittent problems
Follow this procedure to solve intermittent problems.
• “Intermittent external device problems” on page 137
• “Intermittent unexpected reboots” on page 137
Intermittent external device problems
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Make sure that:
• The latest version of corresponding driver is installed.
• The device is seated correctly without physical damage on the device or connector.
• System firmware has been updated to the latest version.
• You followed the installation instructions that came with the device, and the device is installed
properly.
• You have not loosened any other installed devices or cables.
3. For a USB device:
a. Make sure that the device is properly configured and enabled in Setup Utility.
b. Connect the device to another USB port.
c. If the device is connected to a USB hub, remove the device from the hub, and connect it directly to
the server.
Intermittent unexpected reboots
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any issues related to this device. To view the system event log,
go to Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. If the reboot occurs after the operating system starts, disable any automatic server restart (ASR) utilities,
such as the Automatic Server Restart IPMI Application for Windows, or any ASR devices that are
installed.
3. Look into the event logs for an event code that indicates a reboot. See “Event logs” on page 125 for
information about viewing the event log.
Network problems
Follow this procedure to resolve issues related to networking.
• “Cannot wake server using Wake on LAN” on page 137
• “Could not log in using LDAP account with SSL enabled” on page 138
Cannot wake server using Wake on LAN
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
2. Change the Wake on LAN setting. Go to Setup Utility and select Power ➙ Automatic Power On ➙
Wake on LAN. The default setting is automatic. Change it to primary.
3. Remove and reinstall the network adapter.
Chapter 4.Problem determination 137
4. Turn off the server and disconnect it from the power source; then, wait 10 seconds before restarting the
server.
5. If the problem recurs, replace the network adapter.
Could not log in using LDAP account with SSL enabled
Complete the following steps until the problem is solved.
1. Make sure that the license key is valid.
2. Generate a new license key and log in again.
Observable problems
Follow this procedure to solve observable problems.
• “The server immediately displays the POST Event Viewer when it is turned on” on page 138
• “Server is unresponsive (POST is complete and operating system is running)” on page 138
• “Server is unresponsive (cannot press F1 to start Setup Utility)” on page 139
• “Voltage planar fault is displayed in the event log” on page 139
• “Unusual smell” on page 139
• “Server seems to be running hot” on page 139
• “Cracked parts or cracked chassis” on page 139
The server immediately displays the POST Event Viewer when it is turned on
Complete the following steps until the problem is solved.
1. Make sure that the server supports the processor.
To view processor details, go to Setup Utility and select Main ➙ System Summary.
To determine if the processor is supported for the server, see https://static.lenovo.com/us/en/
serverproven/index.shtml.
2. (Trained technician only) Make sure that the processor is installed properly.
3. Replace the following components one at a time, in the order shown, and restart the server after each
replacement.
a. (Trained technician only) processor
b. (Trained technician only) system board
Server is unresponsive (POST is complete and operating system is running)
Complete the following steps until the problem is solved.
• If you have direct access to the server, complete the following steps:
1. If possible, log in to the system and verify that all applications are running without hanging.
2. Restart the server.
3. If the problem recurs, make sure that every newly installed software is configured correctly.
4. Contact the vendor or provider of the software for technical support.
• If you have remote access to the server, complete the following steps:
1. If possible, log in to the system and verify that all applications are running without hanging.
2. Log out of the system and log back in.
138 ThinkSystem ST50 Maintenance Manual
3. Validate the network access by pinging or running traceroute to the server with a command line.
a. If you are unable to get a response during a ping test, try to ping another server in the same server
room to determine whether the problem is caused by failed connection of the server.
b. Run traceroute to determine where the connection breaks down, and try to resolve the connection
issue with VPN or avoiding where the connection breaks down.
4. Restart the server remotely.
5. If the problem recurs, make sure that every installed software is configured correctly.
6. Contact the vendor or provider of the software for technical support.
Server is unresponsive (cannot press F1 to start Setup Utility)
Complete the following steps until the problem is solved.
Note: Any configuration changes, such as system firmware update, device and corresponding driver
installation, could cause failed POST.
If this occurs, the server responds in either of the following ways:
• The system restarts automatically and produces POST again.
• The server hangs, and you must manually reboot the system so that the system produces POST again.
Voltage planar fault is displayed in the event log
Complete the following steps until the problem is solved.
1. Revert the system to the minimum configuration. See “Specifications” on page 2 for details.
2. Restart the server.
• If the system does restart successfully, add the devices that are removed one at a time, and restart
the server after each addition until the problem occurs. Replace the device that causes the problem.
• If the system fails to restart, there might be a problem with the system board. Call Lenovo support.
Unusual smell
Complete the following steps until the problem is solved.
1. Any unusual smell might come from newly installed devices. Examine the devices to identify the source
of the smell, and remove the one that produces it.
2. If the problem recurs, contact Lenovo Support.
Server seems to be running hot
Complete the following steps until the problem is solved.
1. Make sure that the room temperature is within the specified range (see “Specifications” on page 2).
2. Adjust the ICE Performance Mode (ICE) setting. Go to Setup Utility and select Power ➙ Intelligent
Cooling Engine (ICE) ➙ ICE Performance Mode. If the server is set in Better Acoustic Performance,
select Better Thermal Performance and press Enter.
3. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Security ➙ System Event Log ➙ View System Event Log.
4. If there are no related events in the log, contact Lenovo Support.
Cracked parts or cracked chassis
Contact Lenovo Support.
Chapter 4.Problem determination 139
Software problems
Follow this procedure to solve software problems.
1. To determine whether the problem is caused by the software, make sure that:
• The server has the minimum memory that is needed to use the software. For memory requirements,
see the information that comes with the software.
Note: If you have just installed an adapter or memory, the server might have a memory-address
conflict.
• The software is designed to operate on the server.
• Other software works on the server.
• The software works on another server.
2. If you receive any error messages while you use the software, see the information that comes with the
software for a description of the messages and suggested solutions to the problem.
3. Contact your place of purchase of the software.
140 ThinkSystem ST50 Maintenance Manual
Appendix A. Getting help and technical assistance
If you need help, service, or technical assistance or just want more information about Lenovo products, you
will find a wide variety of sources available from Lenovo to assist you.
On the World Wide Web, up-to-date information about Lenovo systems, optional devices, services, and
support are available at:
http://datacentersupport.lenovo.com
Note: IBM is Lenovo's preferred service provider for ThinkSystem.
Before you call
Before you call, there are several steps that you can take to try and solve the problem yourself. If you decide
that you do need to call for assistance, gather the information that will be needed by the service technician to
more quickly resolve your problem.
Attempt to resolve the problem yourself
You can solve many problems without outside assistance by following the troubleshooting procedures that
Lenovo provides in the online help or in the Lenovo product documentation. The Lenovo product
documentation also describes the diagnostic tests that you can perform. The documentation for most
systems, operating systems, and programs contains troubleshooting procedures and explanations of error
messages and error codes. If you suspect a software problem, see the documentation for the operating
system or program.
You can find the product documentation for your ThinkSystem products at the following location:
http://thinksystem.lenovofiles.com/help/index.jsp
You can take these steps to try to solve the problem yourself:
• Check all cables to make sure that they are connected.
• Check the power switches to make sure that the system and any optional devices are turned on.
• Check for updated software, firmware, and operating-system device drivers for your Lenovo product. The
Lenovo Warranty terms and conditions state that you, the owner of the Lenovo product, are responsible
for maintaining and updating all software and firmware for the product (unless it is covered by an
additional maintenance contract). Your service technician will request that you upgrade your software and
firmware if the problem has a documented solution within a software upgrade.
• If you have installed new hardware or software in your environment, check https://static.lenovo.com/us/en/
serverproven/index.shtml to make sure that the hardware and software is supported by your product.
• Go to http://datacentersupport.lenovo.com and check for information to help you solve the problem.
– Check the Lenovo forums at https://forums.lenovo.com/t5/Datacenter-Systems/ct-p/sv_eg to see if
someone else has encountered a similar problem.
You can solve many problems without outside assistance by following the troubleshooting procedures that
Lenovo provides in the online help or in the Lenovo product documentation. The Lenovo product
documentation also describes the diagnostic tests that you can perform. The documentation for most
systems, operating systems, and programs contains troubleshooting procedures and explanations of error
messages and error codes. If you suspect a software problem, see the documentation for the operating
system or program.
© Copyright Lenovo 2018, 2020 141
Gathering information needed to call Support
If you believe that you require warranty service for your Lenovo product, the service technicians will be able
to assist you more efficiently if you prepare before you call. You can also see http://
datacentersupport.lenovo.com/warrantylookup for more information about your product warranty.
Gather the following information to provide to the service technician. This data will help the service
technician quickly provide a solution to your problem and ensure that you receive the level of service for
which you might have contracted.
• Hardware and Software Maintenance agreement contract numbers, if applicable
• Machine type number (Lenovo 4-digit machine identifier)
• Model number
• Serial number
• Current system UEFI and firmware levels
• Other pertinent information such as error messages and logs
As an alternative to calling Lenovo Support, you can go to https://support.lenovo.com/servicerequest to
submit an Electronic Service Request. Submitting an Electronic Service Request will start the process of
determining a solution to your problem by making the pertinent information available to the service
technicians. The Lenovo service technicians can start working on your solution as soon as you have
completed and submitted an Electronic Service Request.
Contacting Support
You can contact Support to obtain help for your issue.
You can receive hardware service through a Lenovo Authorized Service Provider. To locate a service
provider authorized by Lenovo to provide warranty service, go to https://datacentersupport.lenovo.com/
serviceprovider and use filter searching for different countries. For Lenovo support telephone numbers, see
https://datacentersupport.lenovo.com/supportphonelist for your region support details.
142 ThinkSystem ST50 Maintenance Manual
Appendix B. Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult
your local Lenovo representative for information on the products and services currently available in your
area.
Any reference to a Lenovo product, program, or service is not intended to state or imply that only that
Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service
that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's
responsibility to evaluate and verify the operation of any other product, program, or service.
Lenovo may have patents or pending patent applications covering subject matter described in this
document. The furnishing of this document is not an offer and does not provide a license under any patents
or patent applications. You can send inquiries in writing to the following:
Lenovo (United States), Inc.
1009 Think Place
Morrisville, NC 27560
U.S.A.
Attention: Lenovo VP of Intellectual Property
LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to
you.
This information could include technical inaccuracies or typographical errors. Changes are periodically made
to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may
make improvements and/or changes in the product(s) and/or the program(s) described in this publication at
any time without notice.
The products described in this document are not intended for use in implantation or other life support
applications where malfunction may result in injury or death to persons. The information contained in this
document does not affect or change Lenovo product specifications or warranties. Nothing in this document
shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or
third parties. All information contained in this document was obtained in specific environments and is
presented as an illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the
materials for this Lenovo product, and use of those Web sites is at your own risk.
Any performance data contained herein was determined in a controlled environment. Therefore, the result
obtained in other operating environments may vary significantly. Some measurements may have been made
on development-level systems and there is no guarantee that these measurements will be the same on
generally available systems. Furthermore, some measurements may have been estimated through
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their
specific environment.
© Copyright Lenovo 2018, 2020 143
Trademarks
Lenovo, the Lenovo logo, and ThinkSystem are trademarks of Lenovo in the United States, other countries,
or both.
Intel and Xeon are trademarks of Intel Corporation in the United States, other countries, or both.
Microsoft and Windows are trademarks of the Microsoft group of companies.
Linux is a registered trademark of Linus Torvalds.
Other company, product, or service names may be trademarks or service marks of others.
Important notes
Processor speed indicates the internal clock speed of the microprocessor; other factors also affect
application performance.
CD or DVD drive speed is the variable read rate. Actual speeds vary and are often less than the possible
maximum.
When referring to processor storage, real and virtual storage, or channel volume, KB stands for 1 024 bytes,
MB stands for 1 048 576 bytes, and GB stands for 1 073 741 824 bytes.
When referring to hard disk drive capacity or communications volume, MB stands for 1 000 000 bytes, and
GB stands for 1 000 000 000 bytes. Total user-accessible capacity can vary depending on operating
environments.
Maximum internal hard disk drive capacities assume the replacement of any standard hard disk drives and
population of all hard-disk-drive bays with the largest currently supported drives that are available from
Lenovo.
Maximum memory might require replacement of the standard memory with an optional memory module.
Each solid-state memory cell has an intrinsic, finite number of write cycles that the cell can incur. Therefore, a
solid-state device has a maximum number of write cycles that it can be subjected to, expressed as total
bytes written (TBW). A device that has exceeded this limit might fail to respond to system-generated
commands or might be incapable of being written to. Lenovo is not responsible for replacement of a device
that has exceeded its maximum guaranteed number of program/erase cycles, as documented in the Official
Published Specifications for the device.
Lenovo makes no representations or warranties with respect to non-Lenovo products. Support (if any) for the
non-Lenovo products is provided by the third party, not Lenovo.
Some software might differ from its retail version (if available) and might not include user manuals or all
program functionality.
Particulate contamination
Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in
combination with other environmental factors such as humidity or temperature might pose a risk to the
device that is described in this document.
144 ThinkSystem ST50 Maintenance Manual
Risks that are posed by the presence of excessive particulate levels or concentrations of harmful gases
include damage that might cause the device to malfunction or cease functioning altogether. This
specification sets forth limits for particulates and gases that are intended to avoid such damage. The limits
must not be viewed or used as definitive limits, because numerous other factors, such as temperature or
moisture content of the air, can influence the impact of particulates or environmental corrosives and gaseous
contaminant transfer. In the absence of specific limits that are set forth in this document, you must
implement practices that maintain particulate and gas levels that are consistent with the protection of human
health and safety. If Lenovo determines that the levels of particulates or gases in your environment have
caused damage to the device, Lenovo may condition provision of repair or replacement of devices or parts
on implementation of appropriate remedial measures to mitigate such environmental contamination.
Implementation of such remedial measures is a customer responsibility.
Table 30. Limits for particulates and gases
Contaminant Limits
Particulate • The room air must be continuously filtered with 40% atmospheric dust spot efficiency (MERV
9) according to ASHRAE Standard 52.21.
• Air that enters a data center must be filtered to 99.97% efficiency or greater, using high-
efficiency particulate air (HEPA) filters that meet MIL-STD-282.
• The deliquescent relative humidity of the particulate contamination must be more than 60%2.
• The room must be free of conductive contamination such as zinc whiskers.
Gaseous • Copper: Class G1 as per ANSI/ISA 71.04-19853
• Silver: Corrosion rate of less than 300 Å in 30 days
1 ASHRAE 52.2-2008 - Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by
Particle Size. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
2 The deliquescent relative humidity of particulate contamination is the relative humidity at which the dust absorbs
enough water to become wet and promote ionic conduction.
3 ANSI/ISA-71.04-1985. Environmental conditions for process measurement and control systems: Airborne
contaminants. Instrument Society of America, Research Triangle Park, North Carolina, U.S.A.
Telecommunication regulatory statement
This product may not be certified in your country for connection by any means whatsoever to interfaces of
public telecommunications networks. Further certification may be required by law prior to making any such
connection. Contact a Lenovo representative or reseller for any questions.
Electronic emission notices
When you attach a monitor to the equipment, you must use the designated monitor cable and any
interference suppression devices that are supplied with the monitor.
Additional electronic emissions notices are available at:
http://thinksystem.lenovofiles.com/help/index.jsp
Appendix B. Notices 145
Taiwan BSMI RoHS declaration
Taiwan import and export contact information
Contacts are available for Taiwan import and export information.
146 ThinkSystem ST50 Maintenance Manual
Index
C
cable routing
fan 22
front panel 22
hard-disk drive 15, 22
optical drive 17
power supply unit 21
RAID 19
simple-swap drive 15
slim odd 17
solid-state drive 15, 22
tape drive 17
thermal sensor 24
CMOS battery
install 33
remove 31
replacing 31
completing
parts replacement 124
contamination, particulate and gaseous 144
CR2032 31
creating a personalized support web page 141
custom support web page 141
D
devices, static-sensitive
handling 31
DIMM
installing 38
removing 35
replacing 35
DIMM installation rules 36
drive
replacing 40
drive activity LED 9
dual SD card adapter
installing 66
replacing 63
dual SD card adapter module 14
E
Ethernet
controller
troubleshooting 129
Ethernet controller problems
solving 129
expansion drive cage
removing 63
F
fan
installing 70, 74
removing 69, 72
replacing 69
fixed power supply
removing 103
flash power module
installing 78
replacing 75
form factor 2
front bezel
installing 83
removing 81
replacing 81
front fan
installing 70
removing 69
front panel 9
installing 86
removing 84
replacing 84
front view 9
front view of the server 9
G
gaseous contamination 144
Getting help 141
guidelines
options installation 29
system reliability 30
H
handling static-sensitive devices 31
hard disk drive problems 132
hardware service and support telephone numbers 142
heat sink
installing 90
removing 88
help 141
I
ID label 1
important notices 144
install
CMOS battery 33
processor 111
installation
guidelines 29
installation guidelines 29
installing
DIMM 38
dual SD card adapter 66
fan 70, 74
flash power module 78
front bezel 83
front fan 70
front panel 86
heat sink 90
intrusion switch 95
optical drive 53
power supply unit 106
processor fan 90
RDX/LTO 53
rear fan 74
server cover 115
simple-swap drive 44
slim optical drive 60
super capacity module 78
system board 119
tape drive 53
insufficient PCIe resource
solving 135
© Copyright Lenovo 2018, 2020 147
intermittent problems 137
internal cable routing 15
introduction 1
intrusion switch
installing 95
removing 94
replacing 94
J
jumper 13
K
keyboard problems 134
M
memory
problems 131
monitor problems 133
mouse problems 134
N
network
problems 137
network access label 1
notes, important 144
notices 143
O
observable problems 138
optical disk 40
optical drive
installing 53
removing 50, 56
replacing 49
optional-device problems 135
P
particulate contamination 144
parts list 24
parts replacement, completing 124
PCIe
troubleshooting 135
PCIe adapter
replacing 97
power button 9
power cords 27
power LED 9
power off the server 7
power on the server 7
power problems 129
power supply unit
installing 106
power supply unit.
replacing 103
problem determination 125
problems
Ethernet controller 129
hard disk drive 132
intermittent 137
keyboard 134
memory 131
monitor 133
mouse 134
network 137
observable 138
optional devices 135
PCIe 135
power 129
power on and power off 130
software 140
USB device 134
video 133
processor
install 111
removing 109
replacing 109
processor fan
installing 90
removing 88
R
rear fan
installing 74
removing 72
rear view 10
remove
CMOS battery 31
removing
DIMM 35
expansion drive cage 63
fan 69, 72
front bezel 81
front fan 69
front panel 84
heat sink 88
intrusion switch 94
optical drive 50, 56
power supply unit 103
processor 109
processor fan 88
RDX/LTO 50
rear fan 72
server cover 113
simple-swap drive 41
system board 117
tape drive 50, 56
replacing
CMOS battery 31
DIMM 35
drive 40
dual SD card adapter 63
fan 69, 88
flash power module 75
front bezel 81
front panel 84
heat sink 88
intrusion switch 94
optical drive 49
PCIe adapter 97
power supply unit. 103
processor 109
server cover 113
simple-swap drive 41
system board 117
tape drive 49
thermal sensor 121
S
safety iii
safety inspection checklist iv
148 ThinkSystem ST50 Maintenance Manual
security advisories 7
server components 9
server cover
installing 115
removing 113
replacing 113
server power on or power off problems 130
server, front view 9
service and support
before you call 141
hardware 142
software 142
simple-swap drive 60
installing 44
replacing 41
simple-swap drives
removing 41
slim optical drive
installing 60
software problems 140
software service and support telephone numbers 142
solving
Ethernet controller problems 129
insufficient PCIe resource 135
solving power problems 129
Specifications 2
static-sensitive devices
handling 31
support web page, custom 141
system board
installing 119
removing 117
replacing 117
system board components 13
system reliability guidelines 30
T
Taiwan BSMI RoHS declaration 146
Taiwan import and export contact information 146
tape drive 40
installing 53
removing 50, 56
replacing 49
Tech Tips 6
telecommunication regulatory statement 145
telephone numbers 142
thermal sensor
replacing 121
trademarks 144
troubleshooting 133, 135, 140
by symptom 130
hard disk drive problems 132
intermittent problems 137
keyboard problems 134
memory problems 131
mouse problems 134
network problems 137
observable problems 138
power on and power off problems 130
symptoms-based troubleshooting 130
USB-device problems 134
video 133
U
update the firmware 6
updating
VPD 121
VPD (Vital Product Data) 121
USB connector 9
USB-device problems 134
V
video problems 133
W
warranty 1
© Copyright Lenovo 2018, 2020 149
150 ThinkSystem ST50 Maintenance Manual
Part Number: SP47A37799
Printed in China
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