Table of Contents
- Dell Precision 7920 Tower Owner's Manual
- Contents
- Chassis
- Working on your computer
- Removing and installing components
- Screw size list
- Recommended tools
- Power supply unit (PSU)
- Side cover
- Air shroud
- Front bezel
- PCIe holder
- Intrusion switch
- Front system fan assembly
- Internal chassis speaker
- Hard disk drive and the Optical disk drive bezel
- Hard disk drive assembly
- NVMe Flexbay
- Front input and output bezel
- Front input and output panel
- Rear system fan
- Right side cover
- Hard disk drive and optical disk drive frame
- Slim Optical Disk Drive
- 5.25-inch optical drive
- Power distribution and fan control board
- Front HDD cable and fan assembly
- Fan bracket
- Graphical processing unit(GPU)
- Memory
- Coin cell battery
- Processor heat sink module
- System board
- RAID controller battery
- VROC module
- Technology and components
- System specifications
- System Setup
- Software
- Troubleshooting
- Contacting Dell
DELL 7920 User Manual
Displayed below is the user manual for 7920 by DELL which is a product in the PCs/Workstations category. This manual has pages.
Related Manuals
Dell Precision 7920 Tower
Owner's Manual
Regulatory Model: D04X
Regulatory Type: D04X001
May 2020
Rev. A04
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid
the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2017 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Other trademarks may be trademarks of their respective owners.
Chapter 1: Chassis.........................................................................................................................7
Front view..............................................................................................................................................................................7
Back view.............................................................................................................................................................................. 8
Internal view..........................................................................................................................................................................9
Major components of your system ............................................................................................................................... 12
Chapter 2: Working on your computer..........................................................................................14
Safety instructions.............................................................................................................................................................14
Turning off your computer — Windows...................................................................................................................... 14
Before working inside your computer........................................................................................................................... 15
After working inside your computer.............................................................................................................................. 15
Chapter 3: Removing and installing components.......................................................................... 16
Screw size list..................................................................................................................................................................... 16
Recommended tools.......................................................................................................................................................... 17
Power supply unit (PSU)..................................................................................................................................................18
Removing the PSU.......................................................................................................................................................18
Installing the PSU.........................................................................................................................................................18
Side cover............................................................................................................................................................................ 18
Removing the side cover............................................................................................................................................18
Installing the side cover.............................................................................................................................................. 19
Air shroud............................................................................................................................................................................ 20
Removing the air shroud............................................................................................................................................20
Installing the air shroud fan assembly.................................................................................................................... 20
Removing the air shroud fan.................................................................................................................................... 20
Installing the air shroud fan.......................................................................................................................................22
Front bezel.......................................................................................................................................................................... 22
Removing the front bezel.......................................................................................................................................... 22
Installing the front bezel............................................................................................................................................ 23
PCIe holder......................................................................................................................................................................... 24
Removing PCIe card holder ..................................................................................................................................... 24
Installing the PCIe card holder................................................................................................................................. 25
Intrusion switch................................................................................................................................................................. 25
Removing the intrusion switch.................................................................................................................................25
Installing the intrusion switch................................................................................................................................... 27
Front system fan assembly............................................................................................................................................. 28
Removing the front system fan assembly............................................................................................................. 28
Installing the front system fan assembly................................................................................................................ 31
Internal chassis speaker....................................................................................................................................................31
Removing the internal chassis speaker...................................................................................................................31
Installing the internal chassis speaker.................................................................................................................... 32
Hard disk drive and the Optical disk drive bezel........................................................................................................33
Removing the HDD bezel...........................................................................................................................................33
Installing the HDD bezel.............................................................................................................................................33
Contents
Contents 3
Hard disk drive assembly................................................................................................................................................. 34
Removing the HDD carrier........................................................................................................................................ 34
Installing the HDD carrier.......................................................................................................................................... 35
Removing the HDD..................................................................................................................................................... 35
Installing the HDD........................................................................................................................................................36
NVMe Flexbay.................................................................................................................................................................... 37
Removing the NVMe Flexbay................................................................................................................................... 37
Installing the NVMe flexbay....................................................................................................................................... 41
Front input and output bezel..........................................................................................................................................43
Removing the front input and output bezel..........................................................................................................43
Installing the front input and output bezel............................................................................................................45
Front input and output panel..........................................................................................................................................45
Removing the front input and output panel..........................................................................................................45
Installing the front input and output panel............................................................................................................48
Removing the input and output panel bracket.....................................................................................................49
Installing the input and output panel...................................................................................................................... 50
Rear system fan.................................................................................................................................................................50
Removing the rear system fan.................................................................................................................................50
Installing the rear system fan................................................................................................................................... 52
Right side cover.................................................................................................................................................................52
Removing the right side cover................................................................................................................................. 52
Installing the right side cover................................................................................................................................... 52
Hard disk drive and optical disk drive frame...............................................................................................................53
Removing the HDD and ODD frame....................................................................................................................... 53
Installing the HDD and ODD frame......................................................................................................................... 56
Slim Optical Disk Drive..................................................................................................................................................... 56
Removing the slim ODD and ODD latch.................................................................................................................56
Installing the slim ODD and ODD latch...................................................................................................................58
5.25-inch optical drive..................................................................................................................................................... 59
Removing the 5.25-inch optical drive.................................................................................................................... 59
Installing the 5.25-inch optical drive...................................................................................................................... 60
Power distribution and fan control board.................................................................................................................... 61
Removing the power distribution and fan control board.................................................................................... 61
Installing the power distribution and fan control board..................................................................................... 62
Front HDD cable and fan assembly...............................................................................................................................63
Removing the front HDD cable and fan assembly...............................................................................................63
Installing the front HDD cable and fan assembly.................................................................................................64
Fan and sensor cable assembly................................................................................................................................64
Fan bracket.........................................................................................................................................................................69
Removing the fan from the fan bracket................................................................................................................ 69
Installing the fan into the fan bracket.................................................................................................................... 70
Graphical processing unit(GPU)..................................................................................................................................... 71
Removing the GPU...................................................................................................................................................... 71
Installing the GPU........................................................................................................................................................72
Memory................................................................................................................................................................................ 72
Removing the memory module................................................................................................................................. 72
Installing the memory module................................................................................................................................... 73
Coin cell battery.................................................................................................................................................................73
Removing the coin cell battery.................................................................................................................................73
Processor heat sink module............................................................................................................................................ 74
4Contents
Removing the processor heat sink module............................................................................................................74
Installing the processor heat sink module..............................................................................................................75
Removing the CPU......................................................................................................................................................76
Installing the CPU........................................................................................................................................................ 77
System board..................................................................................................................................................................... 80
System board components....................................................................................................................................... 80
Removing system board............................................................................................................................................. 81
Installing the system board....................................................................................................................................... 84
RAID controller battery.................................................................................................................................................... 85
Removing the RAID controller battery................................................................................................................... 85
Installing the RAID controller battery..................................................................................................................... 85
VROC module.....................................................................................................................................................................85
Removing the VROC module.................................................................................................................................... 85
Installing the VROC module...................................................................................................................................... 85
Chapter 4: Technology and components...................................................................................... 87
Memory configuration...................................................................................................................................................... 87
Technologies list................................................................................................................................................................ 88
MegaRAID 9440-8i and 9460-16i controller............................................................................................................... 89
Teradici PCoIP.................................................................................................................................................................... 91
Chapter 5: System specifications................................................................................................95
System specifications...................................................................................................................................................... 95
Memory specifications ....................................................................................................................................................95
Video specifications..........................................................................................................................................................96
Audio specifications.......................................................................................................................................................... 96
Network specifications.................................................................................................................................................... 97
Card Slots............................................................................................................................................................................97
Storage specifications......................................................................................................................................................97
External connectors..........................................................................................................................................................97
Power specifications........................................................................................................................................................ 98
Physical specifications..................................................................................................................................................... 98
Environmental specifications..........................................................................................................................................98
CPU utilization matrix for AEP DIMM.......................................................................................................................... 99
Chapter 6: System Setup........................................................................................................... 100
General options................................................................................................................................................................ 100
System configuration...................................................................................................................................................... 101
Video................................................................................................................................................................................... 103
Security.............................................................................................................................................................................. 103
Secure boot.......................................................................................................................................................................104
Performance..................................................................................................................................................................... 104
Power management........................................................................................................................................................ 106
POST behavior................................................................................................................................................................. 106
Virtualization support......................................................................................................................................................107
Maintenance......................................................................................................................................................................107
System logs....................................................................................................................................................................... 107
Engineering configurations............................................................................................................................................ 107
Updating the BIOS in Windows ...................................................................................................................................108
Contents 5
Updating BIOS on systems with BitLocker enabled..........................................................................................108
Updating your system BIOS using a USB flash drive........................................................................................ 108
Updating the Dell BIOS in Linux and Ubuntu environments............................................................................109
Flashing the BIOS from the F12 One-Time boot menu.....................................................................................109
MegaRAID controller options.........................................................................................................................................112
System and setup password..........................................................................................................................................113
Assigning a system setup password...................................................................................................................... 113
Deleting or changing an existing system setup password................................................................................ 113
Chapter 7: Software................................................................................................................... 115
Supported operating systems....................................................................................................................................... 115
Downloading drivers........................................................................................................................................................ 115
Chipset driver.................................................................................................................................................................... 116
Graphics controller driver............................................................................................................................................... 116
USB drivers........................................................................................................................................................................ 116
Network drivers................................................................................................................................................................ 117
Audio drivers...................................................................................................................................................................... 117
Ports.................................................................................................................................................................................... 117
Storage controller drivers............................................................................................................................................... 117
Other drivers..................................................................................................................................................................... 118
Chapter 8: Troubleshooting........................................................................................................ 119
Dell Enhanced Pre-Boot System Assessment — ePSA Diagnostic 3.0..............................................................119
Running the ePSA Diagnostics................................................................................................................................ 119
Testing memory using ePSA.................................................................................................................................... 119
Preboot blinking power button codes...................................................................................................................120
Hard drive indicator codes.............................................................................................................................................123
Chapter 9: Contacting Dell.........................................................................................................125
6Contents
Chassis
This chapter illustrates the multiple chassis views along with the ports and connectors and also explains the FN hot key
combinations.
Topics:
•Front view
•Back view
•Internal view
•Major components of your system
Front view
1. Power button/Power light 2. HDD Activity LED
3. SD card slot 4. USB 3.2 Gen 1x1 ports
5. USB 3.2 Type-C port with PowerShare 6. USB 3.2 Type-C port
7. Universal audio jack 8. Front bezel release latch
1
Chassis 7
9. 5.25" ODD Bay 10. Slimline optical bay
Back view
1. Power supply unit 2. Line-out port
3. Microphone/Line-in port 4. Serial port
5. PS/2 Mouse port 6. PSU BIST LED
7. PS/2 Keyboard port 8. Network Port (AMT Enabled - Optional)
9. Network Port 10. USB 3.2 Gen 1x1 ports
11. USB 3.2 Type-C port with PowerShare 12. Mechanical expansion slot
13. PCIe expansion slots 14. Side cover release latch
15. PCIe expansion slots (CPU1 required)
8 Chassis
Internal view
1. System board 2. CPU and Memory Air shroud
3. Intrusion switch 4. Front system fan assembly
5. Front Bezel lock/unlock button 6. Auxiliary PCIe power cables
7. Powered graphical processing unit (GPU) 8. PCIe release latches
9. Rear HDD Bezel lock/unlock button 10. Rear Fans
Chassis 9
1. CPU1 socket 2. CPU0 Heatsink
3. PCIe holder 4. CPU0 Memory Slots
5. CPU0 Memory Slots 6. Coin cell battery
7. Half length PCIe graphics card 8. CPU1 Memory Slots
9. CPU1 Memory Slots
10 Chassis
1. Flex 2 (default is 5.25" and Slim ODD Bay) 2. Data cable and power cable for the Slim ODD
3. HDD fan bracket 1 4. Intrusion switch
5. Power distribution and fan control board 6. PSU
7. Flex 3 (optional) 8. Flex 4 (optional)
9. HDD fan bracket 0 10. Flex 1 enclosure
11. Flex 0 enclosure
Chassis 11
Major components of your system
This section illustrates the major components of your system along with its location.
1. Side cover
2. Air shroud
3. PCIe holder
4. Front system fan assembly
5. Slim Optical Disk Drive
6. Memory bracket
7. 5.25 inch Optical Disk Drive
8. NVMe Flexbay
9. Front input and output panel
10. Front bezel
11. Front input and output bezel
12. Hard disk drive and optical disk drive frame
13. Hard Disk Drive bezel
14. Backpane and Drop cables
15. Right side cover
16. Computer chassis
17. System board
18. Expansion card
19. Memory
20. Processor
21. CPU locking clip
12 Chassis
22. Processor heat sink module
23. Front System fan
24. System fan
25. Power Distribution Board
26. Power supply unit (PSU)
NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These
parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for
purchase options.
Chassis 13
Working on your computer
Topics:
•Safety instructions
•Turning off your computer — Windows
•Before working inside your computer
•After working inside your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless
otherwise noted, each procedure included in this document assumes that the following conditions exist:
●You have read the safety information that shipped with your computer.
●A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
NOTE: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the
computer, replace all covers, panels, and screws before connecting to the power source.
WARNING: Before working inside your computer, read the safety information that shipped with your computer.
For additional safety best practices information, see the Regulatory Compliance Homepage
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that came with the product.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically
touching an unpainted metal surface at the same time as touching a connector on the back of the computer.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a
card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by
its pins.
CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some
cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking
tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending
any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and
aligned.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
Turning off your computer — Windows
CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your
computer or remove the side cover.
1. Click or tap .
2. Click or tap and then click or tap Shut down.
2
14 Working on your computer
NOTE: Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not
automatically turn off when you shut down your operating system, press and hold the power button for about 6 seconds
to turn them off.
Before working inside your computer
1. Save and close all open files and exit all open applications.
2. Shut down your computer. Click Start > Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down
instructions.
3. Disconnect your computer and all attached devices from their electrical outlets.
4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
5. Remove any media card and optical disc from your computer, if applicable.
6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board.
CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display.
7. Place the computer face down.
After working inside your computer
NOTE: Leaving stray or loose screws inside your computer may severely damage your computer.
1. Replace all screws and ensure that no stray screws remain inside your computer.
2. Connect any external devices, peripherals, or cables you removed before working on your computer.
3. Replace any media cards, discs, or any other parts that you removed before working on your computer.
4. Connect your computer and all attached devices to their electrical outlets.
5. Turn on your computer.
Working on your computer 15
Removing and installing components
Topics:
•Screw size list
•Recommended tools
•Power supply unit (PSU)
•Side cover
•Air shroud
•Front bezel
•PCIe holder
•Intrusion switch
•Front system fan assembly
•Internal chassis speaker
•Hard disk drive and the Optical disk drive bezel
•Hard disk drive assembly
•NVMe Flexbay
•Front input and output bezel
•Front input and output panel
•Rear system fan
•Right side cover
•Hard disk drive and optical disk drive frame
•Slim Optical Disk Drive
•5.25-inch optical drive
•Power distribution and fan control board
•Front HDD cable and fan assembly
•Fan bracket
•Graphical processing unit(GPU)
•Memory
•Coin cell battery
•Processor heat sink module
•System board
•RAID controller battery
•VROC module
Screw size list
Table 1. Screw list
Component Screw Type Quantity
PSU extended card #6-32X1/4 inches 3
FIO board #6-32X1/4 inches 2
Slim ODD cable for blind mate M3X5.0mm 2
Slim ODD cable for blind mate with ODD
bracket
#6-32 UNC X5.45mm 1
FIO bracket #6-32X1/4 inches 1
Right Side Cover #6-32 UNC X7.0mm 2
Up-Bottom air shroud M3X5.0mm 3
3
16 Removing and installing components
Table 1. Screw list (continued)
Component Screw Type Quantity
Down-Bottom air shroud M3X5.0mm 2
Motherboard #6-32X1/4 inches 12
Front Fan Bracket-MB tray #6-32X1/4 inches 2
Front Fan Bracket-Front wall #6-32X1/4 inches 2
Intruder holder #6-32X1/4 inches 1
Rear Fan bracket #6-32X1/4 inches 2
Rear HDD cover #6-32 UNC X7.0mm 2
Flex0 HDD bay bracket #6-32 UNC X5.45mm 4
Flex0 6025fan bracket for cable
attached
#6-32 UNC X5.45mm 2
Flex0 6025fan bracket for hot plug #6-32 UNC X5.45mm 2
Flex0 and Flex1 HH ODD bracket #6-32 UNC X5.45mm 4
Flex1 HDD bay bracket #6-32 UNC X5.45mm 4
Flex1 6025fan bracket for cable attached #6-32 UNC X5.45mm 2
Flex1 6025fan bracket for hot plug #6-32 UNC X5.45mm 2
Flex2 HDD bay bracket #6-32 UNC X5.45mm 4
Flex2 6025fan bracket for cable
attached
#6-32 UNC X5.45mm 2
Flex3 HDD bracket #6-32 UNC X5.45mm 4
Flex3 6025fan bracket for cable
attached
#6-32 UNC X5.45mm 2
Flex4 HDD bracket #6-32 UNC X5.45mm 4
Flex4 6025fan bracket for cable
attached
#6-32 UNC X5.45mm 2
HH ODD holder M3X5.0mm 4
HSBP board #6-32 UNC X5.45mm 3
CPU0 cooler/CPU0 Liquid Cooler T-30 torx bolt 4
CPU1 cooler/CPU1 Liquid Cooler T-30 torx bolt 4
Liquid Cooler Bracket #6-32 UNC X5.45mm 12
Recommended tools
The procedures in this document may require the following tools:
●Phillips #0 screwdriver
●Phillips #1 screwdriver
●Philips #2 screwdriver
●Plastic scribe-Recommended for field technician
●T-30 torx screwdriver
Removing and installing components 17
Power supply unit (PSU)
Removing the PSU
1. Follow the procedure in Before working inside your computer.
2. Disconnect the power cable from the system.
3. Press the PSU release latch [1] and slide the power supply away from the system [2].
NOTE: If the PSU cannot be removed then remove the right side cover of the system and check if the PSU is secured
with a screw.
Installing the PSU
1. Slide in the power supply unit to the PSU slot on the system.
2. Connect the power cable to the system.
3. Follow the procedure in After working inside your computer
Side cover
Removing the side cover
1. Follow the procedure in Before working inside your computer.
CAUTION: The system will not power on while the side cover is off. Also, the system will shut down if the
side cover is removed while the system is on.
2. To remove the side cover:
3. Press the latch
18 Removing and installing components
4. Pull the latch [1] upward and rotate it to release the cover [2].
5. Lift the cover to remove it from the system.
Installing the side cover
1. First hold and align the bottom of the side cover to the chassis.
2. Ensure that the hook on the bottom of the side cover snaps into the notch on the system.
3. Press the system cover until it clicks into place.
Removing and installing components 19
CAUTION: The system will not power on without the side cover. Also, the system will shut down if the side
cover is removed while the system is on.
4. Follow the procedure in After working inside your computer .
Air shroud
Removing the air shroud
1. Follow the procedure in Before working inside your computer.
2. Remove the side cover.
3. To remove the air shroud Fan assembly:
a. Disconnect the fan connector cable from the system board [1].
b. Lift the shroud away from the system [2].
Installing the air shroud fan assembly
1. Place the shroud into its position and ensure that the tab fits into the system.
2. Press down the shroud until it locks with a click.
3. Reconnect the fan connector cable to the system board.
4. Install the side cover.
5. Follow the procedure in After working inside your computer.
Removing the air shroud fan
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
20 Removing and installing components
b. removing air shroud (Top)
3. Flip-over the shroud to see the fan.
4. To remove the fan, release the fan connector cable from the latches [1] and [2].
5. Remove the screws that secures the fan to the air shroud [1], and lift the fan away from the air shroud [2].
NOTE: The shroud will need to be flexed open slightly in order to be removed.
Removing and installing components 21
Installing the air shroud fan
1. Place the fan into its position inside the air shroud .
2. Replace the screws that secure the fan to the air shroud.
3. Route back the fan connector cable through the latches on the air shroud and flip over.
4. Install the:
a. air shroud (top)
b. side cover
5. Follow the procedure in After working inside your computer.
Front bezel
Removing the front bezel
1. Follow the procedure in Before working inside your computer.
2. Remove the side cover.
3. To remove the front bezel:
a. Press the latch and pry the retention tabs to release the front bezel from the system.
22 Removing and installing components
b. Rotate the bezel forward and lift the front bezel away from the system.
Installing the front bezel
1. Hold the bezel and ensure that the hooks on the bezel snap into the notches on the system.
2. Rotate the bezel forward and press the front bezel until the tabs click into place.
3. Follow the procedure in After working inside your computer.
Removing and installing components 23
PCIe holder
Removing PCIe card holder
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. air shroud
3. To remove the PCIe card holder:
NOTE: If full length cards are installed, you will need to remove these cards before removing the holder.
NOTE: If MegaRAID 9460 is installed, disconnect the Super CAP from the card before removing the PCIe card holder
from the system.
a. Disconnect the power cables on either side of the card holder by pressing the tab and pulling it out of the cable slot in
the PCIe holder [1] and [2].
b. Release the dual cables passing through the clip on the card holder [3].
4. Release the latches connecting the front system fan assembly, and lift the PCIe card holder away from the chassis.
24 Removing and installing components
Installing the PCIe card holder
1. Align the PCIe card holder to the slot in front of the system fan assembly, and press down until it clicks in place.
2. Route the dual cables back through the clip on the PCIe card holder.
3. Connect the power cables on either side to the cable slots in the PCIe card holder.
4. Reinstall the full length cards if they were removed.
5. If the MegaRAID 9460 was removed, please connect the Super CAP back to the card.
6. Install the:
a. air shroud
b. side cover
7. Follow the procedure in After working inside your computer.
Intrusion switch
Removing the intrusion switch
1. Follow procedure in Before working inside your computer.
2. Remove the right side cover.
3. To remove the intrusion switch that is located at the bottom of the system board:
NOTE: The system will not power on when the intrusion switch is uninstalled.
a. Press the knob of the intrusion switch toward the bottom of the chassis [1, 2].
b. Pull the intrusion switch down to remove it from the slot [3].
Removing and installing components 25
4. Install the right side cover
5. Flip the system back with the system cover facing up where the release latch is available.
6. Remove the following components :
a. side cover
b. air shroud
c. PCIe card holder
7. To remove the intrusion switch module:
a. Pull the bottom intrusion switch cable up toward the chassis [1].
b. Press the tab to disconnect the intrusion switch cable from the system board [2].
c. Unroute the intrusion switch cables from the clip on the chassis [3].
d. Remove the screw on the intrusion module [4].
e. Lift the intrusion module from the front system fan assembly [5].
26 Removing and installing components
Installing the intrusion switch
1. Place the intrusion switch module into the slot in the front system fan assembly.
2. To secure the intrusion switch module to the front system fan chassis, replace the single screw on the module.
3. Route the intrusion switch cables through the clip on the chassis.
4. Connect the intrusion switch cable to the system board.
5. Push the bottom intrusion switch cable down toward the bottom chassis.
6. Replace the following components:
a. PCIe graphics card holder
b. air shroud
c. side cover
7. Remove the right side cover.
8. Pull the intrusion switch cable up from the top chassis.
9. Insert and slide the intrusion switch into the slot in the chassis to secure it.
10. Follow the procedure in After working inside your computer.
Removing and installing components 27
Front system fan assembly
Removing the front system fan assembly
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. front bezel
c. air shroud
d. PCIe card holder
3. To remove the system fan assembly:
a. Remove the single screw on the intrusion switch module [1], and lift it away from the system fan chassis [2].
b. Disconnect the internal chassis speaker cable from the connector, unroute it from the clip on the system fan chassis [3],
and lift it away from chassis [4].
4. Disconnect the four system fan cables from the connectors on the system board.
CAUTION: Do not pull the connector by the cable wires. Instead, disconnect the cable by pulling on the
connector end. Pulling the cable wires may loosen them from the connector.
28 Removing and installing components
5. Remove the two screws securing the fan chassis to the system [1], and the two screws securing the fan chassis in front of
the system [2].
Removing and installing components 29
6. Rotate and lift the fan assembly away from the system.
30 Removing and installing components
Installing the front system fan assembly
1. Hold the system fan by the sides with the cable end facing the bottom of the chassis.
2. Replace the two screws securing the system fan assembly in front of the system.
3. Replace the two screws securing the system fan assembly in the system.
4. Connect the four system fan cables to the system board.
5. Route back the internal chassis speaker cable through the clip on the system fan assembly, and connect the internal chassis
speaker to the connector.
6. Replace the intrusion switch module to the slot on the fan assembly and insert the screw to secure it with the system fan
assembly.
7. Install the following components:
a. PCIe graphics card holder
b. air shroud
c. front bezel
d. side cover
8. Follow the procedure in After working inside your computer.
Internal chassis speaker
Removing the internal chassis speaker
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
Removing and installing components 31
a. side cover
b. front bezel
3. To remove the internal chassis speaker:
a. Disconnect one end of the internal chassis speaker cable from the connector on the system board [1].
b. Unroute the internal chassis speaker cable from the clip on the system fan assembly.
4. Press and hold the tabs [2] on either side of the internal chassis speaker, to slide and remove it out of the system [3].
Installing the internal chassis speaker
1. Press and hold the tabs on either side of the internal chassis speaker, and slide the speaker module into the slot to secure it
to the system.
2. Route the internal chassis speaker cable through the clip on the system fan assembly.
3. Connect the one end of the internal chassis speaker cable to the connector on the system fan assembly.
4. Install the following components:
a. air shroud
b. front bezel
c. side cover
5. Follow the procedure in After working inside your computer
32 Removing and installing components
Hard disk drive and the Optical disk drive bezel
Removing the HDD bezel
1. Follow the procedure in Before working inside your computer.
2. Remove the following components:
a. side cover
b. front bezel
3. To remove the HDD bezel:
a. Press the blue unlock button [1], which is located near the front system fan assembly.
b. Slide the latch [2] on the front I/O bezel, to release the HDD bezel from the chassis [3].
c. Rotate and lift the HDD bezel out from the chassis [3].
4. Optional: Remove the ODD bezel from the chassis by prying the edges of the bezel and lift it away.
Installing the HDD bezel
1. If the ODD bezel is removed, install it by aligning the notch of the bezel into the slot on the chassis (Optional).
2. Align the HDD bezel onto its slots on the chassis and press the HDD bezel towards the chassis.
3. Press the blue lock button located near the front system fan assembly, to secure the HDD bezel to the chassis.
4. Install the following components:
a. front bezel
b. side cover
5. Follow the procedure in After working inside your computer
Removing and installing components 33
Hard disk drive assembly
Removing the HDD carrier
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
NOTE: Do not remove the side cover, if the front I/O bezel is unlocked.
b. HDD bezel
NOTE: Remove only the HDD bezel.
3. To remove the HDD carrier:
a. Press the release button [1] to unlock the latch [2].
b. Pull the latch to slide the carrier out of the HDD slot.
34 Removing and installing components
Installing the HDD carrier
1. Slide the carrier into the drive bay until it clicks into place.
CAUTION: Ensure that the latch is open before installing the carrier.
2. Lock the latch.
3. Install the following components:
a. HDD bezel
b. side cover
4. Follow the procedure in After working inside your computer.
Removing the HDD
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. HDD bezel
c. HDD carrier
3. To remove the 3.5 inch HDD:
a. Expand one side of the carrier.
Removing and installing components 35
b. Lift the hard drive out of the carrier.
Installing the HDD
1. Insert the HDD to its slot in the HDD bracket with the connector end of the hard drive towards the back of the HDD carrier.
2. Slide the HDD carrier back into the hard drive bay.
3. Install the following:
a. HDD carrier
36 Removing and installing components
b. HDD bezel
c. side cover
4. Follow the procedure in After working inside your computer
NVMe Flexbay
Removing the NVMe Flexbay
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
NOTE: Do not remove the side cover, if the front I/O bezel is unlocked.
b. HDD bezel
NOTE: Remove only the HDD bezel.
3. To remove the NVMe flexbay:
a. Press the release button [1] to unlock the latch [2].
b. Pull the latch to slide the carrier out of the HDD slot.
Removing and installing components 37
4. To remove the SSD carrier from the NVMe flexbay:
a. Press the release button to slide the M.2 SSD carrier out of the NVMe flexbay.
b. Pull the M.2 SSD carrier out of the NVMe flexbay.
38 Removing and installing components
5. To remove the SSD from the SSD carrier:
a. Remove the screws on either side of the SSD.
b. Remove the screw from the top of the SSD carrier.
Removing and installing components 39
c. Slide the SSD cover from the top of the carrier.
d. Slide the SSD out of the M.2 slot on the carrier.
40 Removing and installing components
Installing the NVMe flexbay
1. To install the SSD in the carrier:
a. Remove the dummy SSD blank from the SSD carrier.
b. Peel off the tape from the SSD carrier.
Removing and installing components 41
c. Peel off the adhesive tape from the SSD carrier cover.
2. Install the SSD in the carrier
42 Removing and installing components
3. Replac the two side screws and the central screw.
4. To install the SSD carrier slide the carrier in the NVMe flexbay until it clicks in place.
5. Slide the carrier into the drive bay until it clicks into place.
CAUTION: Ensure that the latch is open before installing the carrier.
6. Lock the latch.
7. Install the following components:
a. HDD bezel
b. side cover
8. Follow the procedure in After working inside your computer.
Front input and output bezel
Removing the front input and output bezel
1. Follow the procedure in Before working inside the computer.
2. Remove the:
a. side cover
b. front bezel
c. HDD and ODD bezel
3. To remove the front Input/Output (I/O) bezel, pry the edges of the panel [1].
Removing and installing components 43
4. Slightly slide the panel, and lift it away from the chassis.
44 Removing and installing components
Installing the front input and output bezel
1. Align and press the bezel toward the front chassis on the system.
2. Install the:
a. HDD and ODD bezel
b. front bezel
c. side cover
3. Follow the procedure in After working inside your computer
Front input and output panel
Removing the front input and output panel
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. air shroud
c. front bezel
d. PCIe holder
e. front system fan
f. HDD and ODD bezel
Removing and installing components 45
g. input and output bezel
3. To remove the front Input/Output (I/O) panel:
a. Disconnect the following cables from the connectors on the I/O panel.
●Front panel cable [1]
●Front USB 3.1 cable [2]
●Front USB 3.1 cable [3]
●Front panel audio cable [4]
b. Remove the single screw that secures the I/O panel to the chassis.
46 Removing and installing components
4. Slide the I/O panel toward the left of the system to release it, and then remove the I/O panel out of the system.
Removing and installing components 47
Installing the front input and output panel
1. Insert the I/O panel into the slot on the front of the chassis.
2. Slide the I/O panel toward the right of the system to secure it to the chassis.
3. Replace the screw to secure the I/O panel to the chassis.
4. Connect the following cables to the connectors on the I/O panel:
●Front panel cable
●Front USB 3.1 cable
●Front USB 3.1 cable
●Front panel audio cable
NOTE: The color of the cable matches the color of the connector.
5. Install the following:
a. input and output bezel
b. HDD and ODD bezel
c. front system fan
d. PCIe holder
e. front bezel
48 Removing and installing components
f. air shroud
g. side cover
6. Follow the procedure in After working inside your computer
Removing the input and output panel bracket
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. air shroud
c. front bezel
d. PCIe holder
e. front system fan
f. HDD and ODD bezel
g. input and output bezel
h. input and output panel
3. To remove the Input/Output (I/O) panel bracket:
a. Remove the two screws that secure the I/O panel to the bracket.
b. Release and remove the I/O panel out of the bracket.
Removing and installing components 49
Installing the input and output panel
1. Insert the Input/Output (I/O) panel into the metal bracket.
2. Replace the two screws to secure the I/O panel to the I/O bracket.
3. Install the:
a. input and output panel
b. input and output bezel
c. HDD bezel
d. front system fan
e. PCIe holder
f. front bezel
g. air shroud
h. side cover
4. Follow the procedure in After working inside your computer
Rear system fan
Removing the rear system fan
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. air shroud
3. To remove the rear system fan assembly:
a. Remove the two screws [1], and press the tab [2] to rotate the rear system fan into the chassis and remove it from
holder.
50 Removing and installing components
b. Disconnect the system fan cables from the system board [1, 2].
CAUTION: Do not pull the connector by the cable wires. Instead, disconnect the cable by pulling on the
connector end. Pulling on the cable wires may loosen them from the connector.
4. Lift the system fan assembly from the system.
Removing and installing components 51
Installing the rear system fan
1. Hold the rear system fan by the sides with the cable end facing the bottom of the chassis.
2. Connect the two system fan cables to the system board.
3. Replace the two screws to secure the fan with the chassis.
4. Install the:
a. air shroud
b. side cover
5. Follow the procedure in After working inside your computer.
Right side cover
Removing the right side cover
1. Follow the procedure in Before working inside your computer.
2. Place the system chassis on the side with the right side cover facing upward.
3. Remove the two screws [1], that secure the right side cover to the chassis.
4. Slide the side cover back with the handle, and then lift it away from the system [2].
Installing the right side cover
1. Slide the cover forward and ensure that the hooks on the cover snap into the notches on the system.
2. Replace the two screws that secure the right side of the cover to the chassis.
3. Follow the procedure in After working inside your computer.
52 Removing and installing components
Hard disk drive and optical disk drive frame
Removing the HDD and ODD frame
1. Follow the procedure in Before working inside the computer.
2. Remove the:
a. side cover
b. front bezel
c. HDD and ODD bezel
d. front i/o bezel
3. To remove the front HDD and ODD frame, gently pry on the latches of the frame.
4. Slightly pull the panel, and lift it away from the chassis.
Removing and installing components 53
5. Flip the frame.
6. Gently press the release tab on the plastic filler and lift it out of the frame.
54 Removing and installing components
7. Holding the blue tag, gently pull the optical drive metal filler out of the slot.
Removing and installing components 55
Installing the HDD and ODD frame
1. Install the plastic filler and metal blank if the optical drive is not installed.
2. Align and place the HDD and ODD frame on the system.
3. Gently press down on the frame to secure it to the system.
4. Install the:
a. front I/O bezel
b. HDD and ODD bezel
c. front bezel
d. side cover
5. Follow the procedure in After working inside your computer.
Slim Optical Disk Drive
Removing the slim ODD and ODD latch
1. Follow the procedure in Before working inside the computer.
2. Remove the right side cover
3. To remove the ODD:
a. Disconnect the data cable and power cable [1] from the optical drive connector.
b. Slide the blue latch towards the left of the chassis, and push the drive forward [2].
56 Removing and installing components
4. Remove the ODD out of the drive bay.
5. To remove the ODD bracket from the ODD drive:
a. Push the optical drive latch inwards so that the latch disconnects from the optical drive.
Removing and installing components 57
b. Remove the latch from the optical drive.
Installing the slim ODD and ODD latch
1. Place the ODD latch into its position on the ODD drive and lock it.
2. Slide the optical drive into the drive bay from the front of the system until it fits in to place.
3. Connect the data cable and power cable to the connectors on the optical drive.
4. Install the right side cover
5. Follow the procedure in After working inside your computer
58 Removing and installing components
5.25-inch optical drive
Removing the 5.25-inch optical drive
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
3. To remove the 5.25-inch optical drive:
a. Disconnect the power cable and the SATA cable from the optical drive.
b. Push down on the release latch [1].
c. Slide the optical drive out of the system [2].
Removing and installing components 59
Installing the 5.25-inch optical drive
1. Remove the:
a. side cover
b. front bezel
c. HDD and optical drive bezel
d. front I/O bezel
e. HDD and optical drive frame
2. Align the screw holes on the bracket with the holes on the optical drive.
3. Install the four screws that secure the plastic optical drive bracket to the optical drive.
60 Removing and installing components
4. Slide the optical drive into the slot, until it locks into place.
5. Connect the power cable and the SATA cable to the optical drive.
6. Install the:
a. HDD and optical drive frame
b. front I/O bezel
c. HDD and optical drive bezel
d. front bezel
e. side cover
7. Follow the procedure in After working inside your computer.
Power distribution and fan control board
Removing the power distribution and fan control board
1. Follow the procedure in Before working inside the computer.
2. Remove the:
a. PSU
b. right side cover
3. To remove the power distribution and fan control board:
a. Press the tab on both sides of the connector and disconnect the power cable on the control board [1].
b. Disconnect the fan cables from the connectors on the control board [2].
c. Disconnect the power, PDB, and power VGA cables from the connectors on the control board [3].
Removing and installing components 61
4. Remove the three screws that secure the control board to the chassis [1, 2]. Lift the control board away from the chassis.
Installing the power distribution and fan control board
1. Replace the control board into its slot on the chassis and secure it with the three screws to the chassis.
2. Connect the two power cables, fan cables, PDB, power VGA cables, to the connectors on the control board.
3. Install the:
a. right side cover
62 Removing and installing components
b. PSU
4. Follow the procedure in After working inside your computer
Front HDD cable and fan assembly
Removing the front HDD cable and fan assembly
1. Follow the procedure in Before working inside the computer.
2. Remove the right side cover
3. To remove the front HDD cable and fan assembly:
a. Remove the four screws securing both the fan brackets to the chassis [1].
b. Press the tabs of the connector to disconnect the SATA 0 cable from the connector on the system board [2].
c. Press the tabs to disconnect the power cable and remove it from the plug [3].
d. Disconnect the fan cables from the connectors on the power distribution and fan control board [4].
CAUTION: Do not pull the connector by the cable wires. Instead, disconnect the cable by pulling on the
connector end. Pulling on the cable wires may loosen them from the connector.
4. Remove the HDD fan and cable assembly from the chassis.
Removing and installing components 63
Installing the front HDD cable and fan assembly
1. Connect the fan cables to the connectors on the power distribution and fan control board.
2. Connect the power cable to the connector on the power distribution and fan control board.
3. Connect the SATA 0 cable to the connector on the system board.
4. Replace the front HDD cable and fan assembly into their slots on the chassis and secure them with screws to the chassis.
5. Install the right side cover
6. Follow the procedure in After working inside your computer
Fan and sensor cable assembly
Precision 7920 Tower may have as many as 12 system fans connected to the system board. It is important for technicians to
connect these fans to it's assigned connectors on the system board.
64 Removing and installing components
Figure 1. Mandatory System Fan
Removing and installing components 65
Figure 2. HDD Fans
NOTE: Availability of these fans are dependent on configuration ordered.
Table 2. Fan and Cable Description
Fan Cable Description Silk Screen Fan Installation Guide
CPU 1 Fan CPU 1 fan cable FAN_CPU1 Mandatory
Front System
Fans
Fan0 cable FAN_SYS0 Mandatory
Fan1 cable FAN_SYS1 Mandatory
Fan2 cable FAN_SYS2 Mandatory
Fan3 cable FAN_SYS3 Mandatory
Rear System
Fans
Fan0 cable FAN_REAR0 Mandatory
Fan1 cable FAN_REAR1 Mandatory
HDD Fans Fan in Flex0 FAN_FLEX0 Depend on shipped configuration
Fan in Flex1 FAN_FLEX1
Fan in Flex2 FAN_FLEX2
Fan in Flex3 FAN_FLEX3
Fan in Flex4 FAN_FLEX4
66 Removing and installing components
Mandatory System Fan
Removing and installing components 67
68 Removing and installing components
NOTE: When HDD# FAN is installed, the HDD fans can be verified in the system setup and individually activated. But when
the HDD# FAN is removed, it needs to manually unchecked in the system setup.
Verify system fan functionality
Onsite Technicians are encouraged to run ePSA after the service is completed to verify if all the fans are detected and working.
Fan bracket
Removing the fan from the fan bracket
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
b. system fan
3. To remove the fan from the fan bracket:
a. Slide out the four rubber grommets for each fan from the fan chassis [1].
b. Lift the fan and remove it from the fan assembly [2].
Removing and installing components 69
Graphical processing unit(GPU)
Removing the GPU
1. Follow the procedure in Before working inside your computer.
2. Remove the side cover.
3. To remove the GPU:
a. Disconnect the power cable [1] from the GPU card.
NOTE: Not all GPU cards will have power cable, may not apply to all systems.
b. Press and rotate the blue clips backward [2], to unlock the filler bracket.
c. Lift the GPU from the PCIe slot on the system board.
Removing and installing components 71
Installing the GPU
1. Align and place the GPU to the PCIe slot on the system board.
2. Press it down so that it is securely seated on the slot.
3. Connect the power cable to the GPU.
4. Lock both the blue clips forward on the filler bracket to secure the GPU to the system board.
5. Install the side cover.
6. Follow the procedure in After working inside your computer.
Memory
Removing the memory module
1. Follow the procedure in Before working inside your computer.
2. Remove the following:
a. side cover
b. air shroud
3. Press the memory module retention tabs on each side of the memory module.
4. Lift the memory module out of the memory slot on the system board.
72 Removing and installing components
WARNING: Rotating the memory module out of the slot will cause damage to the memory module. Ensure to
pull it straight out of the memory module slot.
Installing the memory module
1. Align the notch on the memory module with the tab on the memory module connector.
2. Insert the memory module into the memory module slot.
3. Press the memory module firmly until the retention tabs click into place.
NOTE: Do not pull the retention levers up. Always press down firmly on the module until the levers lock into place
unassisted.
4. Install the:
a. air shroud
b. side cover
5. Follow the procedure in After working inside your computer
Coin cell battery
Removing the coin cell battery
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
b. graphical processing unit(GPU)
c. air shroud
3. To remove the coin cell battery:
a. Press the release latch [1] away from the battery to allow the battery to pop-up from the socket [2].
Removing and installing components 73
b. Lift the coin-cell battery out of the system board.
Installing the coin cell battery
1. Place the coin-cell battery into its slot on the system board.
2. Press the coin-cell battery with positive (+) side facing up until the release latch springs back into place and secures it to the
system board.
3. To install:
a. air shroud
b. graphical processing unit (GPU)
c. side cover
4. Follow the procedure in After working inside your computer.
Processor heat sink module
Removing the processor heat sink module
1. Follow the procedure in Before working inside your computer.
74 Removing and installing components
NOTE: Ensure that you have Torx 30 screwdriver to remove the processor heat sink module (PHM).
2. Remove the:
a. side cover
b. air shroud
3. To remove the heat sink:
a. Remove the four heat sink screws [1], in the diagonal order (4, 3, 2, 1).
b. Lift the heat sink away from the CPU slot on the system board.
CAUTION: CPU will be removed with the heat sink.
Installing the processor heat sink module
1. Place the heat sink on the CPU slot.
2. Replace the four screws in the diagonal order (1,2,3,4), to secure the heat sink to the system board.
3. Install the:
a. air shroud
b. side cover
4. Follow the procedure in After working inside your computer.
Removing and installing components 75
Removing the CPU
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
b. air shroud
c. processor heat sink module
3. To remove the central processing unit (CPU):
a. Hold the processor heat sink module upside down.
b. Pry the two processor carrier latchs [1] from the processor heat sink module.
c. Press the other two carrier latchs [2] of the processor carrier and remove it from the slot in the heat sink.
d. Use a torx screwdriver to pry the CPU off the processor heat sink module. Place the blade between the clip and the
CPU.
NOTE: A flatbed screwdriver or plastic scribe can also be used as well.
e. Unlatch the CPU from the two keying latches on the processor carrier and gently lift the CPU.
NOTE: Avoid touching the CPU contacts with your fingers.
76 Removing and installing components
Installing the CPU
1. Orient the processor carrier so that the smooth (logo-less) side of the carrier is facing up and the triangle mark on the
carrier is on the bottom left hand corner.
2. Align the processor with the carrier so that the triangle mark on the top side of the processor is aligned with the triangle
mark on the carrier.
Removing and installing components 77
3. Flip both the processor and the carrier over so that the pins on the processor and the logo side of the carrier are facing up.
4. Carefully insert the processor into the carrier so that it is secured by the hooks on the upper and lower side of the carrier.
NOTE: After inserting the processor into the carrier, check to see whether the small triangle on the processor aligns
with the triangle on the carrier. If they are not aligned repeat the preceding steps.
5. Align the processor and carrier assembly with the heat sink so that the triangle marks on the processor and carrier are
aligned with the triangle mark on the top side of the heat sink (captive screw #2).
78 Removing and installing components
6. Insert the processor and carrier assembly into the heat sink so that the hooks on the four corners of the carrier are locked
into the openings of heat sink.
NOTE: After inserting the processor and carrier assembly into the heat sink, double check to see whether the triangle
on the carrier is located on the bottom right corner of the heat sink (when the bottom side of the heat sink is facing up).
7. Install the processor and heat sink onto the central processing unit (CPU) socket and then secure the four captive screws
on the heat sink to the system board in sequential order (1 > 2 > 3 > 4).
Removing and installing components 79
1. PCIe 3*16 (4 slots) and 3*8 ( 1 slot) 2. Rear fan 0 connector
3. CPU1 memory slots 4. CPU1 socket
5. CPU1 memory slots 6. Rear fan 1 connector
7. CPU1 PCIe 3 x16 Slots (2) 8. Front panel audio
9. Piezo speaker 10. Power Control
11. Power 2 12. Intrusion switch connector
13. System Fan 3 14. Internal speaker connector
15. CPU0 memory slots 16. CPU0 socket
17. System Fan 2 18. CPU0 memory slots
19. System Fan 1 20. Power 1
21. CPU fan 1 22. Coin Cell battery
23. ODD connector 24. Front Panel USB
25. USB 2_Int 26. Flex USB
27. Power remote 28. VROC_key
Removing system board
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
Removing and installing components 81
b. front bezel
c. air shroud
d. PCIe card holder
e. front system fan
f. memory module
g. processor heat sink module
h. rear system fan
3. Disconnect the following cables from the system board:
●Front panel audio cable [1]
●Power cable
●Power control cable
●Internal chassis speaker cable
●Intrusion module cable
●System fan 3 cable [2]
4. Disconnect the front panel cables [1], power cable [2], front panel USB 2 cable and DD cable [3]
82 Removing and installing components
7. Lift the system board away from the chassis.
Installing the system board
1. Align and place the system board onto the chassis and slide it back to its position.
2. Tighten the screws to secure the system board to the chassis.
3. Connect all the cables to the connectors on the system board.
4. Install the:
a. rear system fan
b. processor heat sink module
c. GPU
d. memory module
e. front system fan
f. PCIe card holder
g. air shroud
84 Removing and installing components
h. front bezel
i. side cover
5. Flip the system to connect the SATA 0 cable to the connector on the system board.
6. Install the right side cover
7. Follow the procedure in After working inside your computer
RAID controller battery
Removing the RAID controller battery
1. Follow the procedure in Before working inside your computer.
2. Remove the side cover.
3. To remove the RAID controller battery:
a. Disconnect the RAID controller battery cable from the RAID controller card.
b. Push the securing tab out to release the RAID controller battery.
c. Lift and remove the RAID controller battery.
Installing the RAID controller battery
1. Slide and place the RAID controller battery into the RAID battery bracket.
2. Press the RAID controller battery into the bracket to secure with the securing clips.
3. Connect the RAID controller battery cable.
VROC module
Removing the VROC module
Plug-out the VROC module from the system board in the upward direction.
Installing the VROC module
Plug-in the VROC module to the system board.
Removing and installing components 85
86 Removing and installing components
Technology and components
This chapter details the technology and components available in the system.
Topics:
•Memory configuration
•Technologies list
•MegaRAID 9440-8i and 9460-16i controller
•Teradici PCoIP
Memory configuration
This section provides information about the memory configuration for the Dell Precision Tower 7920 systems.
The following table illustrates the memory configuration and population rules for the Dell Precision Tower 7920:
4
Technology and components 87
Technologies list
This section provides information about the technologies that comes with the Dell Precision 7920 Tower.
The following table lists the basic of technologies that are available on the Dell Precision 7920 Tower systems for Dell internal
users only.
Table 3. Technologies list
No. Category Technology Browser Path
1Chipset Intel C620 Series Chipset
(C621)
2Processor ●Intel Xeon Platinum 81xx
Processor
●Intel Xeon Gold 61xx
Processor
●Intel Xeon Gold 51xx
Processor
●Intel Xeon Silver 41xx
Processor
●Intel Xeon Bronze 31xx
Processor
●Intel Xeon Gold 52xx
processors
●Intel Xeon Silver 42xx
processors
●Intel Xeon Bronze 32xx
processors
●Intel Xeon Platinum 82xx
processors
●Intel Xeon Gold 62xx
processors
3Memory DDR4
4Audio Integrated Realtek ALC3234
High Definition Audio Codec (2
Channel)
5Network NIC Integrated RJ45
6Graphics Radeon Pro WX ●9100
●7100
●5100
●4100
●3100
●2100
●3200
NVIDIA ●Quadro GP100
●Quadro P6000
●Quadro P5000
●Quadro P4000
●Quadro P2000
●Quadro P1000
●Quadro P600
●Quadro P400
●Quadro 8000
●Quadro 2200
●Quadro P620
88 Technology and components
Table 3. Technologies list (continued)
No. Category Technology Browser Path
●Quadro GV100
●NVS 310
●NVS 315
●Quadro RTX 4000
●Quadro RTX 5000/6000
●GeForce RTX 2080 B
7Storage SATA
SAS
Dell UltraSpeed Quad (PCIE
M.2 Interposer)
Dell UltraSpeed Duo (PCIE M.2
Interposer)
9Remote Solutions 1-1 Teradici PCoIP ●CLIENT: Dell or other Branded Zero Client (TERA Gen 2)
(Dell-Wyse P25) DUAL Monitor Support
●HOST: PCIe x1 PCoIP Dual Host Card (TERA Gen 2)
●CLIENT: Dell or other Branded Zero Client (TERA Gen 2)
(Dell-Wyse P45 ) QUAD Monitor Support
●HOST: PCIe x1 PCoIP Quad Host Card (TERA Gen 2)
●Support Dual Terra Card configurations
NOTE: For further information about the Teradici PCoIP
Card host driver installation, see Teradici PCoIP.
MegaRAID 9440-8i and 9460-16i controller
Small and medium businesses (SMBs) deploying entry-level server platforms and workstations need affordable, reliable storage
solutions. The MegaRAID Tri-Mode Storage Adapter is a 12Gb/s SAS/SATA/PCIe (NVMe) controller card that addresses
these needs by delivering proven performance and RAID data protection for a range of non-business crticial applications. The
MegaRAID Tri-Mode storage adapters bring NVMe performance benefits to the storage tier by providing connectivity and data
protection for SAS/SATA interfaces. Based on the dual-core SAS3516 or SAS3508 RAID on Chip (ROC) and 72-bit DDR4-2133
SDRAM, these controllers provide bandwidth and IOPS performance increases and are ideal for high-end servers utilizing
internal storage or connecting to large-scale external storage enclosures.
NOTE: The MegaRAID 9440 and 9460 controllers are only supported when using Intel Xeon W Series CPUs.
Tri-Mode SerDes Technology enables operation of NVMe, SAS, or SATA storage devices in a single drive bay. All the 3 modes
concurrently serving NVMe, SAS, and SATA drives can be operated by a single controller. The controller negotiates between
the speeds and protocols to seamlessly work with any of the three types of storage devices. Tri-Mode support provides a
non-disruptive way to evolve existing data center infrastructure. By upgrading to a tri-mode controller, users can expand beyond
Technology and components 89
SAS/SATA and use NVMe without major changes to other system configurations. The MegaRAID Tri-Mode storage adapters
support both REFCLK and SRIS based NVMe x1, x2, and x4 devices.
Key Features:
●Tri-Mode SerDes Technology enables the operation of NVMe, SAS or SATA devices in a single drive bay, allowing for endless
design flexibility
●Supports 12, 6, and 3 Gb/s SAS and 6, 3 Gb/s SATA data transfer rates
●Up to 8 PCIe links. Each link supporting x4, x2, or x1 link widths, supporting 8.0 GT/s (PCIe Gen3) per lane
●SFF-9402 Compliant, Connector Pin-out
●SFF-8485 Compliant, SGPIO
●Fits into rack-mounted servers with low-profile form factor and side-mounted SAS connectors
●Support critical, high-bandwidth applications with PCIe 3.1 connectivity
●CacheVault flash back-up at power fail. Supports bad block management
●Balance protection and performance for critical applications with RAID levels 0, 1, 5, 6, 10, 50, and 60
Table 4. Features of MegaRAID 9440-8i and 9460-16i controller
9440-8i 9460-16i
Ports 8 internal 16 internal
Connectors 2 x SFF8643 4 x SFF8643 x4
Storage Interface Support SATA: Eight x1
SAS: One x8, Two x4, Four x2, Eight x1
NVMe: Two x4, Four x2, Four x1
SATA: Sixteen x1
SAS: Two x8, Four x4, Eight x2, Sixteen
x1
NVMe: Four x4, Eight x2, Eight x1
Max Devices Per Controller SAS/SATA: 64
NVMe: 4
SAS/SATA: 240
NVMe: 24
Cache Memory N/A 4 GB 2133 MHz DDR4 SDRAM
I/O Processor / SAS Controller SAS3408 SAS3516
90 Technology and components
Table 4. Features of MegaRAID 9440-8i and 9460-16i controller (continued)
9440-8i 9460-16i
Host Bus Type PCIe 3.1 x8 PCIe 3.1 x8
Cache Protection N/A CacheVault
CVPM05
Physical Dimensions 6.127” x 2.712” (155.65 mm x 68.90 mm) 6.127” x 2.712” (155.65 mm x 68.90 mm)
Maximum Operating Conditions Operating:
10°C to 55°C
20 to 80% non-condensing
Airflow: 300 LFM
Storage:
-45°C to 105°C
5 to 90% non-condensing
Operating:
10°C to 55°C
20 to 80% non-condensing
Airflow: 300 LFM
Storage:
-45°C to 105°C
5 to 90% non-condensing
MTBF (Calculated) >3,000,000 hours at 40C >3,000,000 hours at 40C
Operating Voltage +12V +/-8%; 3.3V +/-9% +12V +/-8%; 3.3V +/-9%
Hardware Warranty 3 years; with advanced replacement
option
3 years; with advanced replacement
option
MegaRAID Management Suite LSI Storage Authority (LSA)
StorCLI (command-line interface),
CTRL-R (BIOS configuration utility), HII
(UEFI Human Interface Infrastructure)
LSI Storage Authority (LSA)
StorCLI (command-line interface),
CTRL-R (BIOS configuration utility), HII
(UEFI Human Interface Infrastructure)
Regulatory Certifications USA (FCC 47 CFR part 15 Subpart B,
class B); Canada (ICES -003, Class B);
Taiwan (CNS 13438); Japan (VCCI V-3);
Australia/New Zealand (AS/NZS CISPR
22); Korea (RRA no 2013-24 & 25);
Europe (EN55022/EN55024);
Safety: EN/IEC/UL 60950; RoHS; WEEE
USA (FCC 47 CFR part 15 Subpart B,
class B); Canada (ICES -003, Class B);
Taiwan (CNS 13438); Japan (VCCI V-3);
Australia/New Zealand (AS/NZS CISPR
22); Korea (RRA no 2013-24 & 25);
Europe (EN55022/EN55024);
Safety: EN/IEC/UL 60950; RoHS; WEEE
OS Support Microsoft Windows, VMware vSphere/
ESXi, Red Hat Linux, SuSe Linux, Ubuntu
Linux, Oracle Linux, CentOS Linux,
Debian Linux, Fedora, and FreeBSD.
Contact Oracle support for Oracle
Solaris driver or software support.
Microsoft Windows, VMware vSphere/
ESXi, Red Hat Linux, SuSe Linux, Ubuntu
Linux, Oracle Linux, CentOS Linux,
Debian Linux, Fedora, and FreeBSD.
Contact Oracle support for Oracle
Solaris driver or software support.
Teradici PCoIP
This section provides an overview of the host driver installation process.
Installing the Teradici PCoIP Card Host Dual/Quad
Install the PCoIP host driver software from dell.com/support.
NOTE: You cannot upgrade the PCoIP host driver software while a VMware View-brokered PCoIP session is active
between a host workstation or host PC and VMware View client. Doing this will result in losing access to your mouse and
keyboard when the driver software is removed.
Technology and components 91
To upgrade the PCoIP host driver software in this type of deployment, do one of the following:
●Connect to the host from a zero client.
●Upgrade the software while connecting to the host through another desktop-remoting protocol such as RDP or VNC.
Installing the PCoIP Host Driver Software on a Host PC:
1. Download the PCoIP host driver software from the Teradici Support site (click Current PCoIP Product and Releases).
2. Log in to the administrative web interface for the host card.
3. From the Configuration > Host Driver Function menu, enable the Host Driver Function.
4. Restart the host PC.
5. Install the PCoIP host software package appropriate for the operating system installed on the host PC. You can start the
install process by double-clicking the installer:
a. 64 bit: PCoipHostSoftware_x64-v4.3.0.msi (or later)
6. When the Welcome screen appears, click Next.
7. Accept the terms, and then click Next.
8. Ensure that the installation location is correct, and click Next.
9. Click Install.
NOTE: For Windows 7, when the driver is installed, a Windows Security dialog may appear. Click Install to continue
with the installation. To keep this dialog box from appearing in the future, select Always trust software from Teradici
Corporation.
10. If prompted, restart the operating system; otherwise, skip this step. When restarted, the host driver software installation
process continues when the OS boots up. Click Install to continue.
11. Click Finish to complete the installation.
Power management cable configuration for Teradici PCoIP Portal and
Host Card
If the Dell Precision Workstation comes equipped with the optional Teradici PCoIP Portal and Host Card, make sure
the power management cable on the Teradici card is connected properly on the system board. The power management
cable from the Teradici card must be plugged into the correct Power remote connection on the system board.
92 Technology and components
Refer the below image for an example of the Power remote connector labeled 30 on the system board diagram:
Make sure the power management cable from the Teradici card is not plugged into either the two-pin Clear CMOS or Clear
PSWD jumpers.
Technology and components 93
Plugging the power management cable into the Clear CMOS jumper will cause the BIOS to reset when sending a remote restart
request to the Teradici card. You will then have to reset the time and BIOS settings.
If the power management cable from the Teradici card is plugged into the Clear PSWD jumper, then the BIOS password will be
cleared and a new one will need to be configured.
94 Technology and components
System specifications
Topics:
•System specifications
•Memory specifications
•Video specifications
•Audio specifications
•Network specifications
•Card Slots
•Storage specifications
•External connectors
•Power specifications
•Physical specifications
•Environmental specifications
•CPU utilization matrix for AEP DIMM
System specifications
Feature Specification
Processor type Intel Xeon Processor Scalable Family
●Intel Xeon Platinum 81xx processors
●Intel Xeon Gold 61xx processors
●Intel Xeon Gold 51xx processors
●Intel Xeon Silver 41xx processors
●Intel Xeon Bronze 31xx processors
●Intel Xeon Gold 52xx processors
●Intel Xeon Silver 42xx processors
●Intel Xeon Bronze 32xx processors
●Intel Xeon Platinum 82xx processors
●Intel Xeon Gold 62xx series processors
Total cache Up to 38.5 MB
Memory specifications
Features Specifications
Type DDR4 RDIMM ECC
Maximum
Frequency
Up to 2933 MHz
Speed Up to 2933 MHz
Connectors 24 DIMM Slots (12 per CPU)
DIMM capacities 4 GB, 8 GB, 16 GB, 32 GB, 64 GB, 128 GB
NOTE: Six channel memory up to 1.5 TB 2933 MHz DDR4 ECC memory per CPU with select CPU
SKUs..
5
System specifications 95
Features Specifications
Minimum
memory
16 GB (2x8 GB) i.e. 2 DIMMs per CPU
Maximum
memory
3 TB
NOTE: Up to 3 TB with select CPU SKUs
Video specifications
Features Specifications
Graphic cards ●Radeon Pro WX 9100
●NVIDIA Quadro GP100
●NVIDIA Quadro P620
●NVIDIA Quadro P2200
●NVIDIA Quadro GV100
●NVIDIA Quadro P6000
●NVIDIA Quadro P5000
●Radeon Pro WX 7100
●Radeon Pro WX 5100
●Radeon Pro WX 4100
●NVIDIA Quadro P4000
●NVIDIA Quadro P2000
●Radeon Pro WX 3100
●Radeon Pro WX 3200
●Radeon Pro WX 2100
●NVIDIA Quadro P1000
●NVIDIA Quadro P600
●NVIDIA Quadro P400
●NVIDIA NVS 310
●NVIDIA NVS 315
●NVIDIA Quadro RTX 4000
●NVIDIA Quadro RTX 5000/6000/ 8000
●NVIDIA GeForce RTX 2080 B
Audio specifications
Features Specifications
Type High Definition Audio Codec (2 Channel)
Controller Integrated Realtek ALC3234
Internal Speaker
Power Rating
2W
Internal
microphone
support
no
96 System specifications
Network specifications
Features Specifications
Integrated Intel i219 and i210 Gigabit Ethernet controllers with Intel Remote Wake UP, PXE and Jumbo frames
support.
Network adaptor
2 (Optional)
●Intel i210 10/100/1000 single port PCIe (Gen 3 x1) gigabit network card.
●Intel X550-T2 10GbE dual port PCIe (Gen 3 x4) network card.
●Aquantia AQN-108 2.5Gbit/5Gbe single port PCIe (Gen3 x4) network card.
Card Slots
Features Specifications
Type PCIe Gen 3
Slots ●two PCIE Gen 3 x16
●two PCIE Gen 3 x16 (enabled with 2nd CPU)
●one PCIE Gen 3 x8 (open ended connector)
●one PCIE Gen 3 x16 (wired as x4)
●one PCIE Gen 3 x16 (wired as x1)
Storage specifications
Features Specifications
Externally
Accessible
DVD-ROM; DVD+/-RW Optional 5.25” bay devices: BD, DVD+/-RW
Internally
Accessible
●M.2 NVMe PCIe SSDs—Up to 8* x 1TB drives on 2 Dell Precision Ultra-Speed Drive Quad x16 cards.
Requires dual CPU config
●Front FlexBay M.2 NVMe PCIe SSDs—Up to 4* x 1TB drives, 2 drives per CPU. Requires dual CPU
config
●Up to 8 x 3.5" (or 2.5") SATA Drives
●Up to 10 x 3.5" (or 2.5") SATA/SAS Drives with optional controller
External connectors
Features Specifications
Audio ●Rear—1 x Audio Line out
●Rear—1 x Audio Line in/Microphone
●Front—1 x Universal Audio Jack
Network Rear—2 x RJ45 Network ports
Serial port Rear—1 x Serial port
USB ●Front—2 x USB 3.2 Gen 1x1 and 2 x USB 3.2 Type-C (1 with PowerShare)
●Rear—6 x USB 3.2 Gen 1x1
PS2 ●Rear—1 x Keyboard
●Rear—1 x Mouse
System specifications 97
Power specifications
Features Specifications
Voltage Input voltage 100VAC - 240VAC
Wattage ●1400W at 181VAC - 240VAC
●1100W at 100VAC - 180VAC
Physical specifications
Features Specifications
Height 433mm
Width 218mm
Depth 566mm
Weight
(Minimum)
With front bezel
●Min configuration 20.4 kg
●Typical configuration 24.3 kg
●Max configuration 33.1 kg
Environmental specifications
Temperature Specifications
Operating 5 °C to 35 °C (41 F to 95 °F)
NOTE: * Starting at 5000 ft, the maximum operating ambient temperature is derated by 1 C (1.8 F)
per 1000 ft up to 10,000 ft.
Storage -40 °C to 65 °C(-40 F to 149 F)
Relative
humidity
(maximum)
Specifications
Operating 8% to 85% (non-condensing)
Storage 5% to 95% (non-condensing)
Maximum
vibration
Specifications
Operating 0.52 Grms, 5 to 350 Hz
Storage 2.0 Grms, 5 to 500 Hz
Maximum
Shock
Specifications
Operating 40 G half-sine 2.5 ms pulse
Storage 105 G half-sine 2.5 ms pulse
98 System specifications
CPU utilization matrix for AEP DIMM
NOTE: While using a 512 GB SKU configuration, you may see high CPU utilization (25% to 75%) persisting between 5 to 40
minutes when you boot into Windows 10
CPU utilization matrix
System specifications 99
System Setup
Topics:
•General options
•System configuration
•Video
•Security
•Secure boot
•Performance
•Power management
•POST behavior
•Virtualization support
•Maintenance
•System logs
•Engineering configurations
•Updating the BIOS in Windows
•MegaRAID controller options
•System and setup password
General options
Table 5. General options
Option Description
System Information This section lists the primary hardware features of your
computer.
●System Information
●Memory Configuration
●Processor Information
●Device Information
●PCI Information
Boot Sequence Allows you to change the order in which the computer attempts
to find an operating system.
●Diskette Drive
●USB Storage Device
●CD/DVD/CD-RW Drive
●Onboard NIC
●Internal HDD
Boot List Option Allows you to change the boot list option.
●Legacy
●UEFI
Advanced Boot Options Allows you to Enable Legacy Option ROMs
●Enable Legacy Option ROMs—Default
●Enable Attempt Legacy Boot
Date/Time Allows you to set the date and time. The changes to the system
date and time take effect immediately.
6
100 System Setup
Table 5. General options (continued)
Option Description
UEFI Boot Path Security Allows you to control whether the system prompts the user to
enter the Admin password when booting to a UEFI boot path.
Click one of the following options:
●Always, Except Internal HDD—Default
●Always
●Never
System configuration
Table 6. System Configuration
Option Description
Integrated NIC Allows you to configure the integrated network controller. The
options are:
●Enable UEFI Network Stack
●Disabled
NOTE: You can use the Disabled option, only if Active
Management Technology (AMT) option is disabled.
●Enabled
●Enabled w/PXE (Default)
Integrated NIC 2 Allows you to configure the integrated network controller. The
options are:
●Enabled (Default)
●Enabled w/PXE
NOTE: This feature is supported only on Tower 7920.
UEFI Network Stack Allows pre-OS and early OS networking features to use any
enabled NICs.
●Enabled UEFI Network Stack
This option is set by default.
Serial Port Identifies and defines the serial port settings. You can set the
serial port to:
●Disabled
●COM1 (Default)
●COM2
●COM3
●COM4
NOTE: The operating system may allocate resources even
if the setting is disabled.
SATA Operation
7920 Tower Allows you to configure the internal SATA hard-drive
controller. The options are:
●Disabled
●AHCI
●RAID-On (Default)
NOTE: SATA is configured to support RAID mode.
Drives
System Setup 101
Table 6. System Configuration (continued)
Option Description
7920 Tower ●SATA–0
●SATA–1
●SATA–2
●SATA–3
●SATA–4
●SATA–5
●SATA–6
●SATA–7
●SATA–8
Default Setting: All drives are enabled.
NOTE: If the hard drives are connected to a RAID
controller card, the hard drives will display {none} in all the
fields. The hard drives can be seen in the RAID controller
card BIOS.
PCIe Drives Allows the enabling of Front PCIe attached Ports.
●MiniSAS PCIe SSD-0
●MiniSAS PCIE SSD-1
●MiniSAS PCIe SSD-2
●MiniSAS PCIE SSD-3
Default Setting: All drives are enabled.
SMART Reporting This field controls if the hard drive errors for the integrated
drives are reported during system startup. This technology is
part of the SMART (Self Monitoring Analysis and Reporting
Technology) specification.
●Enable SMART Reporting - This option is disabled by
default.
USB Configuration Allows you to enable or disable the internal USB configuration.
The options are:
●Enable Boot Support
●Enable Front USB Ports
●Enable internal USB ports
●Enable rear USB Ports
HDD Fans Allows you to control the HDD fans.
Default Setting: depends on the system configuration
Audio Allows you enable or disable the audio feature.
●Enable Audio (Default)
Memory Map IO above 4GB Allows you enable or disable Memory Map IO above 4GB.
●Memory Map IO above 4GB - This option is disabled by
default.
Thunderbolt Allows you to enable or disable Thunderbolt device support
capability.
●Enabled
●Disabled (Default)
Miscellaneous devices Allows you to enable or disable various on board devices.
●Enable Secure Digital (SD) Card (Default On)
●Secure Digital (SD) Card Read Only Mode
●Secure Digital (SD) Card Boot
Intel VMD Technology Allows you to enable or disable VMD on the front PCIe bays.
102 System Setup
Table 6. System Configuration (continued)
Option Description
●PCIe0
●PCIe1
●PCIe0_CPU1
●PCIe1_CPU1
Default Setting: All options are enabled.
Allows you to disable VMD for the PCIe Slots.
●Auto (Default On)
●Disabled
Video
Table 7. Video
Option Description
Primary Video Slot Allows you to configure primary boot video device. The options are:
●Auto (Default)
●SLOT 1
●SLOT 2: VGA Compatible
●SLOT 3
●SLOT 4
●SLOT 5
●SLOT 6
●SLOT1_CPU2: VGA Compatible
●SLOT2_CPU2
Security
Table 8. Security
Option Description
Strong Password Allows you to enforce the option to always set strong passwords.
Default Setting: Enable Strong Password is not selected.
Password Configuration You can define the length of your password. Min = 4 , Max = 32
Password Bypass Allows you to enable or disable the permission to bypass the System password, when it is set. The
options are:
●Disabled (Default)
●Reboot bypass
Password Change Allows you to enable the disable permission to the System passwords when the administrator
password is set.
Default Setting: Allow Non-Admin Password Changes is selected
UEFI Capsule Firmware
Updates
Allows you to update the system BIOS via UEFI capsule update packages.
●Enable UEFI Capsule Firmware Updates
This option is set by default.
TPM Security Allows you to enable the Trusted Platform Module (TPM) during POST.
Default Setting: The option is disabled.
System Setup 103
Table 8. Security (continued)
Option Description
Computrace (R) Allows you to activate or disable the optional Computrace software. The options are:
●Deactivate (Default)
●Disable
●Activate
Chassis Intrusion Allows you to control the chassis intrusion feature.
Click one of the following options:
●Disabled—Default
●Enabled
●On-Silent
CPU XD Support Allows you to enable the Execute Disable mode of the processor.
●Enable CPU XD Support (Default)
OROM Keyboard Access Allows you to determine whether users are able to enter Option ROM Configuration screens via
hotkeys during boot. The options are:
●Enable (Default)
●One Time Enable
●Disable
Admin Setup Lockout Allows you to prevent users from entering Setup when an administrator password is set.
●Enable Admin Setup Lockout
Default Setting: The option is disabled.
Secure boot
Table 9. Secure Boot
Option Description
Secure Boot Enable Allows you to enable or disable the Secure Boot Feature. The
options are:
●Disabled (Default)
●Enabled
Expert Key Management Allows you to enable or disable Custom Mode Key
Management.
●Disabled (Default)
Performance
Table 10. Performance
Option Description
Multi Core Support This field specifies whether the processor will have one or
all cores enabled. The performance of some applications will
improve with the additional cores. This option is enabled by
default. Allows you to enable or disable multi-core support for
the processor. The options are:
●All (Default)
●1
●2
●3
●4
104 System Setup
Table 10. Performance (continued)
Option Description
●5
●6
●7
●8
NOTE:
●The options displayed could be different depending on
the installed processor(s).
●The options depend on the number of cores supported
by the installed processor (All, 1, 2, N-1 for N-Core
Processors)
Intel SpeedStep Allows you to enable or disable the Intel SpeedStep feature.
Default Setting: Enable Intel SpeedStep
C States Allows you to enable or disable the additional processor sleep
states.
Default Setting: Enabled
Intel TurboBoost Allows you to enable or disable the Intel TurboBoost mode of
the processor.
Default Setting: Enable Intel TurboBoost
Hyper-Thread Control Allows you to enable or disable the HyperThreading in the
processor.
Default Setting: Enabled
Cache Prefetch Default Setting: Enable Hardware Prefetch and Adjacent
Cache Line Prefetch
Dell Reliable Memory Technology (RMT) Allows you to identify and isolate memory errors in system
RAM..
Default Setting: Enable Dell Reliable Memory Technology
(RMT)
System Isochronous Mode Allows you to enable or disable this mode to reduce latency of
memory transactions at the expense of bandwidth. :
Click one of the options:
●Disabled(Default)
●Enabled
RAS Support Allows you to report or log errors caused by memory failures,
the PCIe failures, CPU failures. The options are:
●Enable on Memory modules
●Enable on PCIe modules
●Enable on CPU modules
The options are not set by default.
System Setup 105
Power management
Table 11. Power Management
Option Description
AC Recovery Specifies how the computer will respond when AC power is applied after a AC power loss. You
can set the AC Recovery to:
●Power Off (Default)
●Power On
●Last Power State
Auto On Time Allows you to set the time at which the computer must turn on automatically. The options are:
●Disabled (Default)
●Every Day
●Weekdays
●Select Days
Deep Sleep Control Allows you to define the controls when Deep Sleep is enabled.
●Disabled (Default)
●Enabled in S5 only
●Enabled in S4 and S5
USB Wake Support Allows you to enable USB devices to wake the system from standby.
●Enable USB Wake Support
Default Setting: The option is disabled.
Wake on LAN This option allows the computer to power up from the off state when triggered by a special LAN
signal. Wake-up from the Standby state is unaffected by this setting and must be enabled in the
operating system. This feature only works when the computer is connected to AC power supply.
●Disabled - Does not allow the system to power on by special LAN signals when it receives a
wake-up signal from the LAN or wireless LAN.
●LAN Only - Allows the system to be powered on by special LAN signals.
●LAN with PXE Boot - Allows the system to power on and immediately boot to PXE when it
receives a wake-up packet sent to the system in either the S4 or S5 state.
This option is Disabled by default.
Block Sleep Allows you to block entering to sleep (S3 state) in OS Environment.
Default Setting: Disabled
POST behavior
Table 12. POST Behavior
Option Description
Numlock LED Specifies if the NumLock function can be enabled when the system boots. This option is enabled
by default.
Keyboard Errors Specifies whether keyboard related errors are reported when it boots. This option is enabled by
default.
Fastboot Allows you to speed up the boot process by bypassing some compatibility steps. The options are:
●Minimal
●Thorough - This option is enabled by default.
●Auto
106 System Setup
Virtualization support
Table 13. Virtualization Support
Option Description
Virtualization This option specifies whether a Virtual Machine Monitor (VMM) can utilize the additional
hardware capabilities provided by Intel Virtualization technology.
●Enable Intel Virtualization Technology - This option is enabled by default.
VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the additional hardware
capabilities provided by Intel Virtualization technology for direct I/O.
●Enable VT for Direct I/O - This option is enabled by default.
Trusted Execution Allows you to specify whether a Measured Virtual Machine Monitor (MVMM) can utilize the
additional hardware capabilities provided by Intel Trusted Execution Program.
●Trusted Execution - This option is disabled by default.
Maintenance
Table 14. Maintenance
Option Description
Service Tag Displays the service tag of your computer.
Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This option is not set by
default.
SERR Messages Controls the SERR message mechanism. This option is not set by default. Some graphics cards
require that the SERR message mechanism be disabled.
System logs
Table 15. System Logs
Option Description
BIOS events Displays the system event log and allows you to clear the log.
●Clear Log
Engineering configurations
Table 16. Engineering configurations
Option Description
ASPM ●Auto (Default)
●L1 Only
●Disabled
●L0s and L1
●L0s Only
Pcie LinkSpeed ●Auto (Default)
●Gen1
●Gen2
●Gen3
System Setup 107
Updating the BIOS in Windows
It is recommended to update your BIOS (System Setup) when you replace the system board or if an update is available.
NOTE: If BitLocker is enabled, it must be suspended prior to updating the system BIOS, and then re enabled after the BIOS
update is completed.
1. Restart the computer.
2. Go to Dell.com/support.
●Enter the Service Tag or Express Service Code and click Submit.
●Click Detect Product and follow the instructions on screen.
3. If you are unable to detect or find the Service Tag, click Choose from all products.
4. Choose the Products category from the list.
NOTE: Choose the appropriate category to reach the product page.
5. Select your computer model and the Product Support page of your computer appears.
6. Click Get drivers and click Drivers and Downloads.
The Drivers and Downloads section opens.
7. Click Find it myself.
8. Click BIOS to view the BIOS versions.
9. Identify the latest BIOS file and click Download.
10. Select your preferred download method in the Please select your download method below window, click Download File.
The File Download window appears.
11. Click Save to save the file on your computer.
12. Click Run to install the updated BIOS settings on your computer.
Follow the instructions on the screen.
Updating BIOS on systems with BitLocker enabled
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and
the system will ask for this on each reboot. If the recovery key is not known, this can result in data loss or
an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article:
Updating the BIOS on Dell Systems With BitLocker Enabled
Updating your system BIOS using a USB flash drive
If the system cannot load into Windows, but there is still a need to update the BIOS, download the BIOS file using another
system and save it to a bootable USB Flash Drive.
NOTE: You will need to use a bootable USB flash drive. Please refer to the following article for further details How to
Create a Bootable USB Flash Drive using Dell Diagnostic Deployment Package (DDDP)
1. Download the BIOS update .EXE file to another system.
2. Copy the file e.g. O9010A12.EXE onto the bootable USB flash drive.
3. Insert the USB flash drive into the system that requires the BIOS update.
4. Restart the system and press F12 when the Dell splash logo appears to display the One Time Boot Menu.
5. Using arrow keys, select USB Storage Device and click Enter.
6. The system will boot to a Diag C:\> prompt.
7. Run the file by typing the full filename, for example, O9010A12.exe and press Enter.
8. The BIOS Update Utility will load. Follow the instructions on screen.
108 System Setup
Figure 3. DOS BIOS Update Screen
Updating the Dell BIOS in Linux and Ubuntu environments
If you want to update the system BIOS in a Linux environment, such as Ubuntu, see https://www.dell.com/support/article/
sln171755/.
Flashing the BIOS from the F12 One-Time boot menu
Updating your system BIOS using a BIOS update .exe file copied to a FAT32 USB key and booting from the F12 one time boot
menu.
BIOS Update
You can run the BIOS update file from Windows using a bootable USB key or you can also update the BIOS from the F12
One-Time boot menu on the system.
Most Dell systems built after 2012 have this capability and you can confirm by booting your system to the F12 One-Time Boot
Menu to see if BIOS FLASH UPDATE is listed as a boot option for your system. If the option is listed, then the BIOS supports
this BIOS update option.
NOTE: Only systems with BIOS Flash Update option in the F12 One-Time Boot Menu can use this function.
Updating from the One-Time Boot Menu
To update your BIOS from the F12 One-Time boot menu, you will need:
●USB key formatted to the FAT32 file system (key does not have to be bootable)
●BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB key
●AC power adapter connected to the system
●Functional system battery to flash the BIOS
Perform the following steps to execute the BIOS update flash process from the F12 menu:
CAUTION: Do not power off the system during the BIOS update process. Powering off the system could make
the system fail to boot.
1. From a power off state, insert the USB key where you copied the flash into a USB port of the system .
2. Power on the system and press the F12 key to access the One-Time Boot Menu, Highlight BIOS Update using the mouse or
arrow keys then press Enter.
System Setup 109
3. The Bios flash menu will open then click the Flash from file.
4. Select external USB device
110 System Setup
5. Once the file is selected, Double click the flash target file, then press submit .
6. Click the Update BIOS then system will reboot to flash the BIOS.
System Setup 111
7. Once complete, the system will reboot and the BIOS update process is completed.
MegaRAID controller options
During bootup, press <Ctrl> + <R> when prompted by the BIOS screen to get to the BIOS configuration utility.
Table 17. MegaRAID configuration utility
Option Description
VD Mgmt (Virtual Device Management) This option is used to import the existing configuration to the
RAID controller or clear the existing configuration. The right-
hand panel of the screen lists attributes of the virtual drive or
other device selected in the left panel.
●Virtual Drives
●Drives
●Available size
●Hot spare drives
PD Mgmt (Physical Drive Management) This screen displays basic information about existing physical
drives connected to the selected controller, including drive
ID, vendor, size, type, and state and allows you to manage
physical drives.
Press F2 to show the context menu:
●Rebuild
●Copyback
●Locate
●Place Drive online
●Place drive offline
●Make Global HS
●Remove Hot Spare drive
●Make JBOD
●Make unconfigured good
●Prepare for Removal
Ctrl Mgmt (Control Management) This screen allows you to change the settings for controller
options such as Enable Controller BIOS, Enable BIOS Stop on
112 System Setup
Table 17. MegaRAID configuration utility (continued)
Option Description
Error and others. It also allows you to select a bootable virtual
drive, restore default controller settings.
Properties The Properties screen displays the controller properties like
current versions of the controller BIOS, the MegaRAID
firmware the Configuration Utility and the Boot block.
NOTE: Press <Ctrl> + <N> to move to the next screen and Press <Ctrl> + <P> to go back to the previous screen.
System and setup password
Table 18. System and setup password
Password type Description
System password Password that you must enter to log on to your system.
Setup password Password that you must enter to access and make changes to
the BIOS settings of your computer.
You can create a system password and a setup password to secure your computer.
CAUTION: The password features provide a basic level of security for the data on your computer.
CAUTION: Anyone can access the data stored on your computer if it is not locked and left unattended.
NOTE: System and setup password feature is disabled.
Assigning a system setup password
You can assign a new System or Admin Password only when the status is in Not Set.
To enter the system setup, press F2 immediately after a power-on or reboot.
1. In the System BIOS or System Setup screen, select Security and press Enter.
The Security screen is displayed.
2. Select System/Admin Password and create a password in the Enter the new password field.
Use the following guidelines to assign the system password:
●A password can have up to 32 characters.
●The password can contain the numbers 0 through 9.
●Only lower case letters are valid, upper case letters are not allowed.
●Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
3. Type the system password that you entered earlier in the Confirm new password field and click OK.
4. Press Esc and a message prompts you to save the changes.
5. Press Y to save the changes.
The computer reboots.
Deleting or changing an existing system setup password
Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing
System and Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is
Locked.
To enter the System Setup, press F2 immediately after a power-on or reboot.
System Setup 113
1. In the System BIOS or System Setup screen, select System Security and press Enter.
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, alter or delete the existing system password and press Enter or Tab.
4. Select Setup Password, alter or delete the existing setup password and press Enter or Tab.
NOTE: If you change the System and/or Setup password, re enter the new password when prompted. If you delete the
System and Setup password, confirm the deletion when prompted.
5. Press Esc and a message prompts you to save the changes.
6. Press Y to save the changes and exit from System Setup.
The computer restarts.
114 System Setup
Software
This chapter details the supported operating systems along with instructions on how to install the drivers.
Topics:
•Supported operating systems
•Downloading drivers
•Chipset driver
•Graphics controller driver
•USB drivers
•Network drivers
•Audio drivers
•Ports
•Storage controller drivers
•Other drivers
Supported operating systems
Table 19. Operating systems
Supported operation systems
Windows 10 ●Factory installed Windows
10 Pro—64-bit
●Factory installed Win 10
Enterprise—64 bit
Windows 7 Windows 7 Pro—64-bit
Linux ●RHEL 7.3
●Ubuntu 16.04
●NeoKylin v6.0
Downloading drivers
1. Turn on the computer.
2. Go to Dell.com/support.
3. Click Product Support, enter the Service Tag of your system, and then click Submit.
NOTE: If you do not have the Service Tag, use the auto detect feature or manually browse for your system model.
4. Click Drivers and Downloads.
5. Select the operating system installed on your system.
6. Scroll down the page and select the driver to install.
7. Click Download File to download the driver for your system.
8. After the download is complete, navigate to the folder where you saved the driver file.
9. Double-click the driver file icon and follow the instructions on the screen.
7
Software 115
Chipset driver
Verify if the Intel chipset and Intel Management Engine Interface drivers are already installed in the computer.
Graphics controller driver
Verify if the graphics controller driver is already installed in the computer.
USB drivers
Verify if the USB drivers are already installed in the computer.
116 Software
Network drivers
This system comes with both LAN and WiFi drivers and is able to detect the LAN and WiFi without going through the drivers
installation.
Audio drivers
Verify if audio drivers are already installed in the computer.
Ports
Verify if the drivers for the ports are already installed in the computer.
Storage controller drivers
Verify if the storage controller drivers are installed in the computer.
Software 117
Other drivers
This section lists driver details for all the other components in the Device Manager.
Security device drivers
Verify if the security device drivers are installed in the computer.
Software device drivers
Verify if the software device drivers are installed in the computer.
Human Interface Devices
Verify if the Human Interface device drivers are installed in the computer.
Portable Devices
Verify if the portable device drivers are installed in the computer.
118 Software
Troubleshooting
The following section describes common troubleshooting steps that can be performed to resolve certain problems on your
computer.
Topics:
•Dell Enhanced Pre-Boot System Assessment — ePSA Diagnostic 3.0
•Hard drive indicator codes
Dell Enhanced Pre-Boot System Assessment — ePSA
Diagnostic 3.0
You can invoke the ePSA diagnostics by either of the following ways :
●Press the F12 key when the system posts and choose ePSA or Diagnostics option on One Time Boot Menu.
●Press and hold Fn(Function key on keyboard) and Power On (PWR) the system.
Running the ePSA Diagnostics
Invoke diagnostics boot by either of the methods that are suggested below:
1. Power on the computer.
2. As the computer boots, press the F12 key when the Dell logo is displayed.
3. In the boot menu screen, use Up/Down arrow key to select the Diagnostics option and then press Enter.
NOTE: The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the computer.
The diagnostics starts running the tests on all the detected devices.
4. Press the arrow in the lower-right corner to go to the page listing.
The detected items are listed and tested.
5. To run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.
6. Select the device from the left pane and click Run Tests.
7. If there are any issues, error codes are displayed.
Note the error code and contact Dell.
Testing memory using ePSA
1. Turn on or restart your system.
2. Perform one of the following actions after the Dell logo is displayed:
●With keyboard press F12.
●The system displays one time boot menu and uses up and down arrow key to go to diagnostics and press enter to launch
ePSA.
The Pre Boot System Assessment (PSA) starts on your system.
NOTE: If you wait too long and the operating system logo be displayed, continue to wait until you see the desktop. Turn
off the laptop and try again.
NOTE: ePSA can alternatively be launched by pressing and holding Fn+ Press Power button.
8
Troubleshooting 119
Preboot blinking power button codes
Table 20. Power button LED state
Power Button LED State Description
Off Power is Off. LED is blank.
Blinking Amber Initial State of LED at power up. See the table below for
Blinking Amber pattern diagnostic suggestions and possible
failures.
Blinking White System is in a low power state, either S1 or S3. This does not
indicate a fault condition.
Solid Amber The second state of the LED at power up, indicates that the
POWER_GOOD signal is active and it is probable that the
power supply is fine.
Solid White System is in S0 state. This is the normal power states of a
functioning machine. The BIOS will turn the LED to this states
to indicate it has started fetching op-codes.
Table 21. Diagnostic Indicator table
Power Light: Amber-White
Blinking
Amber/White Blinking
Pattern
Problem Description Suggested Resolution
1-1 1 amber blink followed by a
short pause, 1 white blink,
long pause, then repeats
Faulty System board To troubleshoot the issue with
system board, contact Tech
support.
1-2 1 amber blink followed by a
short pause, 2 white blinks,
long pause, then repeats
Bad system board, Power
Supply or Power Supply
cabling
●If you can assist
to troubleshoot, narrow
down the issue with PSU
BIST Test, reseat cable.
●If nothing works, contact
Tech Support
1-3 1 amber blink followed by a
short pause, 3 white blinks,
long pause, then repeats
Bad system board, Memory or
Processor
●If you can assist
to troubleshoot, narrow
down the issue by
reseating memory and
swapping a known good
memory if available.
●If nothing works, contact
Tech Support
1-4 1 amber blink followed by a
short pause, 4 white blinks,
long pause, then repeats
Bad Coin cell ●Replace Coin cell
●If issue persists, replace
system board
2-1 2 amber blinks followed by
a short pause, 1 white blink,
long pause, then repeats
Bad Processor ●CPU configuration activity
is in progress or a CPU
failure was detected.
●Contact Tech Support
●If you can assist
to troubleshoot, narrow
down the issue by
ensuring CPU 0 is
installed, CPU0 and CPU1
is an idendical matching
pair and swapping a known
good CPUs if available.
●If nothing works, contact
Tech Support
120 Troubleshooting
Table 21. Diagnostic Indicator table (continued)
Power Light: Amber-White
Blinking
Amber/White Blinking
Pattern
Problem Description Suggested Resolution
2-2 2 amber blinks followed by a
short pause, 2 white blinks,
long pause, then repeats
Motherboard: BIOS ROM
failure
●System is in Recovery
Mode.
●Flash latest BIOS version.
If problem persists,
contact Tech Support
2-3 2 amber blinks followed by a
short pause, 3 white blinks,
long pause, then repeats
No Memory ●If customer can assist
to troubleshoot, narrow
down the issue by
removing the memory
module one by one to
determine which one failed
and swapping to a known
good memory if available
to confirm.
●Contact Tech Support
2-4 2 amber blinks followed by a
short pause, 4 white blinks,
long pause, then repeats
Memory/RAM failure ●If customer can assist
to troubleshoot, narrow
down the issue by
removing the memory
module one by one to
determine which one failed
and swapping to a known
good memory if available
to confirm.
●Contact Tech Support
2-5 2 amber blinks followed by a
short pause, 5 white blinks,
long pause, then repeats
Invalid memory installed ●Memory subsystem
configuration activity is
in progress. Memory
modules have been
detected but appear to
be incompatible or in an
invalid configuration.
●If customer can assist
to troubleshoot, narrow
down the issue by
removing one by one the
memory on motherboard
to determine which one
failed.
●Contact Tech Support.
2-6 2 amber blinks followed by a
short pause, 6 white blinks,
long pause, then repeats
Motherboard: Chipset ●Fatal system board failure
detected.
●If customer can assist
to troubleshoot, narrow
down the issue by
removing one by one
the component on
motherboard to determine
which one failed.
●If you identified any of the
components failed, replace
the Component.
●Contact Tech Support.
3-1 3 amber blinks followed by
a short pause, 1 white blink,
long pause, then repeats
RTC failure ●Replace coin cell
Troubleshooting 121
Table 21. Diagnostic Indicator table (continued)
Power Light: Amber-White
Blinking
Amber/White Blinking
Pattern
Problem Description Suggested Resolution
3-2 3 amber blinks followed by a
short pause, 2 white blinks,
long pause, then repeats
PCI Device or Video ●PCI device configuration
activity is in progress or
PCI device failure was
detected.
●If you can assist
to troubleshoot, narrow
down the issue by
reseating PCI card and
removing one by one
to determine which card
failed.
●Contact Tech Support.
3-3 3 amber blinks followed by a
short pause, 3 white blinks,
long pause, then repeats
BIOS Recovery 1 ●System is in Recovery
Mode.
●Flash latest BIOS version.
If problem persists,
contact Tech Support
3-4 3 amber blinks followed by a
short pause, 4 white blinks,
long pause, then repeats
BIOS Recovery 2 ●System is in Recovery
Mode.
●Flash latest BIOS version.
If problem persists,
contact Tech Support
4-1 4 amber blinks followed by
a short pause, 1 white blink,
long pause, then repeats
CPU Config or CPU Failure ●The 2 installed CPU's do
not match, Please install 2
CPU's of the same type
4-2 4 amber blinks followed by a
short pause, 2 white blinks,
long pause, then repeats
Generic POST Video error
(Old LED pattern 1110)
●PCI device config
or failure with video
subsystem config or failure
4-3 4 amber blinks followed by a
short pause, 3 white blinks,
long pause, then repeats
Bad Memory ●Memory VR would not
turn on. Check Memory
insertion
4-4 4 amber blinks followed by a
short pause, 4 white blinks,
long pause, then repeats
Riser board issue ●Power issue on Riser
second CPU board
4-5 4 amber blinks followed by a
short pause, 5 white blinks,
long pause, then repeats
PCIe Add-in Card population
issue
●PCI device is installed on
CPU1 slot and CPU1 is not
installed.
●If you can assist to
troubleshoot, move all
PCIe card in CPU1 slot to
CPU0 slot. An alternative
would be install an
identical CPU as CPU0 to
CPU1 socket.
●Contact Tech Support
4-6 4 amber blinks followed by a
short pause, 6 white blinks,
long pause, then repeats
RAID Volume degraded ●RAID volume is degraded.
●If you can assist to
troubleshoot, us F12
menu to enter Device
Configuration tab. Rebuild
the RAID volume if
possible
●Contact Tech Support.
122 Troubleshooting
Table 21. Diagnostic Indicator table (continued)
Power Light: Amber-White
Blinking
Amber/White Blinking
Pattern
Problem Description Suggested Resolution
4-7 4 amber blinks followed by a
short pause, 7 white blinks,
long pause, then repeats
System Side cover is missing ●System side cover(either
left or right) is missing.
●Unplug power, Install back
all side covers back to the
chassis and plug in power.
●Contact Tech Support.
Hard drive indicator codes
Each hard drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the
current status of the hard drive. The activity LED indicator indicates whether the hard drive is currently in use or not. The status
LED indicator indicates the power condition of the drive.
Hard drive indicators
NOTE: LED status or activity indicators will only work with a backplane with each carriers shown below.
Troubleshooting 123
Figure 4. Hard drive indicators
1. hard drive activity LED indicator
2. hard drive status LED indicator
3. hard drive
NOTE: If the hard drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not turn
on.
NOTE: Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used.
Table 22. Hard drive indicator codes
Hard drive status indicator code Condition
Flashes green twice per second Identifying drive or preparing for removal.
Off Drive ready for removal.
NOTE: The drive status indicator remains off until all drives are
initialized after the system is turned on. Drives are not ready
for removal during this time.
Flashes green, amber, and then turns off Predicted drive failure.
Flashes amber four times per second Drive failed.
Flashes green slowly Drive rebuilding.
Solid green Drive online.
Flashes green for three seconds, amber for three
seconds, and then turns off after six seconds
Rebuild stopped.
124 Troubleshooting
Contacting Dell
NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing
slip, bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options. Availability varies by country and product, and
some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues:
1. Go to Dell.com/support.
2. Select your support category.
3. Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the page.
4. Select the appropriate service or support link based on your need.
9
Contacting Dell 125