DELL OPTIPLEX 7470 AIO MLK I7 9-9700 User Manual

Displayed below is the user manual for OPTIPLEX 7470 AIO MLK I7 9-9700 by DELL which is a product in the All-in-One PCs/Workstations category. This manual has pages.

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Dell OptiPlex 7470 All-in-One

Service Manual

Regulatory Model: W19C

Regulatory Type: W19C001

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.

subsidiaries. Other trademarks may be trademarks of their respective owners.

2020 - 03

Rev. A00

1 Working on your computer............................................................................................................ 6

Safety instructions.................................................................................................................................................................6

Turning off your computer — Windows 10....................................................................................................................... 6

Before working inside your computer................................................................................................................................. 7

After working inside your computer.................................................................................................................................... 7

2 Technology and components......................................................................................................... 8

DDR4....................................................................................................................................................................................... 8

USB features........................................................................................................................................................................ 10

HDMI......................................................................................................................................................................................12

3 Major components of your system ............................................................................................... 13

4 Removing and Installing components............................................................................................15

Recommended tools............................................................................................................................................................ 15

Screw size list....................................................................................................................................................................... 16

System board layout............................................................................................................................................................ 17

Rubber feet........................................................................................................................................................................... 18

Removing the rubber feet.............................................................................................................................................19

Installing the rubber feet............................................................................................................................................... 19

Cable cover - optional.........................................................................................................................................................20

Removing the cable cover............................................................................................................................................20

Installing the cable cover............................................................................................................................................... 21

Stand ....................................................................................................................................................................................22

Removing the stand...................................................................................................................................................... 22

Installing the stand.........................................................................................................................................................23

Back cover............................................................................................................................................................................24

Removing the back cover.............................................................................................................................................24

Installing the back cover............................................................................................................................................... 24

Hard drive.............................................................................................................................................................................25

Removing the hard drive assembly............................................................................................................................. 25

Installing the hard drive assembly................................................................................................................................26

Memory module................................................................................................................................................................... 27

Removing the memory module.................................................................................................................................... 27

Installing the memory module...................................................................................................................................... 28

System board shield............................................................................................................................................................ 29

Removing the system board shield............................................................................................................................. 29

Installing the system board shield................................................................................................................................30

Intel Optane...........................................................................................................................................................................31

Removing the Intel Optane card.................................................................................................................................. 31

Installing the Intel Optane card.................................................................................................................................... 32

Solid State Drive -SSD........................................................................................................................................................33

Removing the SSD card................................................................................................................................................33

Installing the SSD card..................................................................................................................................................34

Contents

Contents 3

Solid State Drive -2230...................................................................................................................................................... 35

Removing the 2230 SSD card..................................................................................................................................... 35

Installing the 2230 SSD card........................................................................................................................................36

WLAN card........................................................................................................................................................................... 37

Removing the WLAN card............................................................................................................................................37

Installing the WLAN card.............................................................................................................................................. 39

System fan............................................................................................................................................................................ 41

Removing the system fan..............................................................................................................................................41

Installing the system fan............................................................................................................................................... 42

Heat sink...............................................................................................................................................................................43

Removing the heat sink - dGPU.................................................................................................................................. 43

Installing the heat sink - dGPU.................................................................................................................................... 44

Removing the heat sink - UMA................................................................................................................................... 45

Installing the heat sink - UMA......................................................................................................................................45

Pop-Up Camera...................................................................................................................................................................46

Removing the pop-up camera..................................................................................................................................... 46

Installing the pop-up camera........................................................................................................................................48

Coin cell battery...................................................................................................................................................................50

Removing the coin cell battery.................................................................................................................................... 50

Installing the coin cell battery...................................................................................................................................... 50

Processor.............................................................................................................................................................................. 51

Removing the processor............................................................................................................................................... 51

Installing the processor................................................................................................................................................. 52

Base cover............................................................................................................................................................................53

Removing the base cover.............................................................................................................................................53

Installing the base cover............................................................................................................................................... 55

Power supply unit - PSU.................................................................................................................................................... 56

Removing the power supply unit -PSU...................................................................................................................... 56

Installing the power supply unit -PSU.........................................................................................................................58

Power supply unit fan - PSU fan.......................................................................................................................................59

Removing the power supply unit fan -PSU fan.........................................................................................................59

Installing the power supply unit -PSU fan.................................................................................................................. 60

Input and Output bracket....................................................................................................................................................61

Removing the Input and Output bracket.................................................................................................................... 61

Installing the Input and Output bracket...................................................................................................................... 63

System board.......................................................................................................................................................................64

Removing the system board........................................................................................................................................ 64

Installing the system board...........................................................................................................................................67

Speakers............................................................................................................................................................................... 70

Removing the speakers.................................................................................................................................................70

Installing the speakers....................................................................................................................................................71

Power button board............................................................................................................................................................ 72

Removing the power button board............................................................................................................................. 72

Installing the power button board................................................................................................................................73

Microphones.........................................................................................................................................................................74

Removing the microphones..........................................................................................................................................74

Installing the microphones............................................................................................................................................ 75

Input and Output board...................................................................................................................................................... 76

Removing the Input and Output board....................................................................................................................... 76

Installing the input and output board...........................................................................................................................78

4Contents

Headset port........................................................................................................................................................................ 80

Removing the headset port..........................................................................................................................................80

Installing the headset port.............................................................................................................................................81

Antennas...............................................................................................................................................................................82

Removing the antennas................................................................................................................................................ 82

Installing the antennas.................................................................................................................................................. 83

Display panel.........................................................................................................................................................................84

Removing the display panel..........................................................................................................................................84

Installing the display panel............................................................................................................................................ 86

Display cable.........................................................................................................................................................................88

Removing the display cable..........................................................................................................................................88

Installing the display cable............................................................................................................................................ 89

Middle frame........................................................................................................................................................................ 90

Removing the middle frame......................................................................................................................................... 90

Installing the middle frame............................................................................................................................................92

5 Troubleshooting your computer...................................................................................................95

Enhanced Pre-Boot System Assessment — ePSA diagnostics................................................................................... 95

Running the ePSA Diagnostics.................................................................................................................................... 95

Diagnostics........................................................................................................................................................................... 95

LCD built in self test - BIST................................................................................................................................................96

6 Getting help...............................................................................................................................98

Contacting Dell.................................................................................................................................................................... 98

Contents 5

Working on your computer

Topics:

•Safety instructions

•Turning off your computer — Windows 10

•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 the 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.

NOTE: 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 at www.dell.com/

regulatory_compliance

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 that is grounded to ground yourself before you touch the computer to perform any

disassembly tasks.

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 10

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.

6 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. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.

2. Turn off your computer.

3. Disconnect all network cables from the computer (if available).

CAUTION: If your computer has an RJ45 port, disconnect the network cable by first unplugging the cable from your

computer.

4. Disconnect your computer and all attached devices from their electrical outlets.

5. Open the display.

6. Press and hold the power button for few seconds, to ground the system board.

CAUTION: To guard against electrical shock unplug your computer from the electrical outlet before performing Step

# 8.

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.

7. Remove any installed ExpressCards or Smart Cards from the appropriate slots.

After working inside your computer

After you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on your

computer.

CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use

batteries designed for other Dell computers.

1. Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.

2. Connect any telephone or network cables to your computer.

CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the

computer.

3. Connect your computer and all attached devices to their electrical outlets.

4. Turn on your computer.

Working on your computer 7

Technology and components

This chapter details the technology and components available in the system.

Topics:

•DDR4

•USB features

•HDMI

DDR4

DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows up to 512

GB in capacity, compared to the DDR3's maximum capacity of 128 GB per DIMM. DDR4 synchronous dynamic random-access memory is

keyed differently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the system.

DDR4 needs 20 percent less or just 1.2 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. DDR4 also

supports a new, deep power-down mode that allows the host device to go into standby without needing to refresh its memory. Deep

power-down mode is expected to reduce standby power consumption by 40 to 50 percent.

Key Specifications

The following table lists the specifications' comparison between DDR3 and DDR4:

Table 1. DDR3 vs DDR4

Feature/Option DDR3 DDR4 DDR 4 Advantages

Chip Densities 512 Mb-8 Gb 4 Gb-16 Gb Larger DIMM capacities

Data rates 800 Mb/s-2133 Mb/s 1600 Mb/s-3200 Mb/s Migration to higher speed I/O

Voltage 1.5 V 1.2 V Reduced memory power

demand

Low voltage standard Yes (DDR3L at 1.35V) Anticipated at 1.05V Memory Power Reductions

Internal banks 8 16 Higher data rates

Bank groups (BG) 0 4 Faster burst accesses

VREF inputs 2 —DQs and CMD/ADDR 1 — CMD/ADDR VREFDQ Now Internal

tCK — DLL Enabled 300 Mhz-800 Mhz 667Mhz-1.6Ghz Higher data rates

tCK — DLL Disabled 10MHz – 125MHz (optional) Undefined to 125MHz DLL-off now fully supported

Read Latency AL+CL AL+CL Expanded values

Write Latency AL+CWL AL+CWL Expanded values

DQ Driver (ALT) 40&Omega 48&Omega Optimal for PtP Applications

DQ Bus SSTL15 POD12 Less I/O Noise and Power

RTT Values (in &Omega) 120,60,40,30,20 240,120,80,60,48,40,34 Support for higher data rates

RTT not allowed READ Bursts Disables during READ Bursts Ease of use

ODT Modes Nominal, Dynamic Nominal, Dynamic,Park Add’l Control Mode; OTF Value

Change

ODT Control ODT Signaling Required ODT Signaling Not Required Ease of ODT Control; Allows

Non-ODT Routing, PtP Apps

8 Technology and components

Feature/Option DDR3 DDR4 DDR 4 Advantages

Multi-Purpose Register Four Registers – 1 Defined, 3

RFU

Four Registers – 3 Defined, 1

RFU

Provides Additional Specialty

Readout

DIMM Types RDIMM, LRDIMM, UDIMM,

SODIMM

RDIMM, LRDIMM, UDIMM,

SODIMM

DIMM Pins 240 (R, LR, U); 204 (SODIMM) 288 (R, LR, U); 260 (SODIMM)

RAS ECC CRC, Parity, Addressability,

GDM

More RAS features; improved

data integrity

DDR4 Details

There are subtle differences between DDR3 and DDR4 memory modules, as listed below.

Key notch difference

The key notch on a DDR4 module is in a different location from the key notch on a DDR3 module. Both notches are on the insertion edge,

but the notch location on the DDR4 is slightly different, to prevent the module from being installed into an incompatible board or platform.

Figure 1. Notch difference

Increased thickness

DDR4 modules are slightly thicker than DDR3, to accommodate more signal layers.

Figure 2. Thickness difference

Curved edge

DDR4 modules feature a curved edge to help with insertion and alleviate stress on the PCB during memory installation.

Figure 3. Curved edge

Technology and components 9

USB features

Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host computers and peripheral

devices like mice, keyboards, external drivers, and printers.

Let's take a quick look on the USB evolution referencing to the table below.

Table 2. USB evolution

Type Data Transfer Rate Category Introduction Year

USB 2.0 480 Mbps High Speed 2000

USB 3.0/USB 3.1 Gen 1 5 Gbps Super Speed 2010

USB 3.1 Gen 2 10 Gbps Super Speed 2013

USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)

For years, the USB 2.0 has been firmly entrenched as the de facto interface standard in the PC world with about 6 billion devices sold, and

yet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands. The USB 3.0/USB 3.1 Gen 1

finally has the answer to the consumers' demands with a theoretically 10 times faster than its predecessor. In a nutshell, USB 3.1 Gen 1

features are as follows:

• Higher transfer rates (up to 5 Gbps)

• Increased maximum bus power and increased device current draw to better accommodate power-hungry devices

• New power management features

• Full-duplex data transfers and support for new transfer types

• Backward USB 2.0 compatibility

• New connectors and cable

The topics below cover some of the most commonly asked questions regarding USB 3.0/USB 3.1 Gen 1.

Speed

Currently, there are 3 speed modes defined by the latest USB 3.0/USB 3.1 Gen 1 specification. They are Super-Speed, Hi-Speed and Full-

Speed. The new SuperSpeed mode has a transfer rate of 4.8Gbps. While the specification retains Hi-Speed, and Full-Speed USB mode,

commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480Mbps and 12Mbps respectively and are kept to

maintain backward compatibility.

USB 3.0/USB 3.1 Gen 1 achieves the much higher performance by the technical changes below:

• An additional physical bus that is added in parallel with the existing USB 2.0 bus (refer to the picture below).

• USB 2.0 previously had four wires (power, ground, and a pair for differential data); USB 3.0/USB 3.1 Gen 1 adds four more for two

pairs of differential signals (receive and transmit) for a combined total of eight connections in the connectors and cabling.

• USB 3.0/USB 3.1 Gen 1 utilizes the bidirectional data interface, rather than USB 2.0's half-duplex arrangement. This gives a 10-fold

increase in theoretical bandwidth.

10 Technology and components

With today's ever increasing demands placed on data transfers with high-definition video content, terabyte storage devices, high

megapixel count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever come close to the

480Mbps theoretical maximum throughput, making data transfer at around 320Mbps (40MB/s) — the actual real-world maximum.

Similarly, USB 3.0/USB 3.1 Gen 1 connections will never achieve 4.8Gbps. We will likely see a real-world maximum rate of 400MB/s with

overheads. At this speed, USB 3.0/USB 3.1 Gen 1 is a 10x improvement over USB 2.0.

Applications

USB 3.0/USB 3.1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall experience. Where USB

video was barely tolerable previously (both from a maximum resolution, latency, and video compression perspective), it's easy to imagine

that with 5-10 times the bandwidth available, USB video solutions should work that much better. Single-link DVI requires almost 2Gbps

throughput. Where 480Mbps was limiting, 5Gbps is more than promising. With its promised 4.8Gbps speed, the standard will find its way

into some products that previously weren't USB territory, like external RAID storage systems.

Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products:

• External Desktop USB 3.0/USB 3.1 Gen 1 Hard Drives

• Portable USB 3.0/USB 3.1 Gen 1 Hard Drives

• USB 3.0/USB 3.1 Gen 1 Drive Docks & Adapters

• USB 3.0/USB 3.1 Gen 1 Flash Drives & Readers

• USB 3.0/USB 3.1 Gen 1 Solid-state Drives

• USB 3.0/USB 3.1 Gen 1 RAIDs

• Optical Media Drives

• Multimedia Devices

• Networking

• USB 3.0/USB 3.1 Gen 1 Adapter Cards & Hubs

Compatibility

The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all,

while USB 3.0/USB 3.1 Gen 1 specifies new physical connections and thus new cables to take advantage of the higher speed capability of

the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as

before. Five new connections to carry receive and transmitted data independently are present on USB 3.0/USB 3.1 Gen 1 cables and only

come into contact when connected to a proper SuperSpeed USB connection.

Windows 8/10 will be bringing native support for USB 3.1 Gen 1 controllers. This is in contrast to previous versions of Windows, which

continue to require separate drivers for USB 3.0/USB 3.1 Gen 1 controllers.

Microsoft announced that Windows 7 would have USB 3.1 Gen 1 support, perhaps not on its immediate release, but in a subsequent

Service Pack or update. It is not out of the question to think that following a successful release of USB 3.0/USB 3.1 Gen 1 support in

Windows 7, SuperSpeed support would trickle down to Vista. Microsoft has confirmed this by stating that most of their partners share the

opinion that Vista should also support USB 3.0/USB 3.1 Gen 1.

Technology and components 11

HDMI

This topic explains the HDMI 1.4/ 2.0 and its features along with the advantages.

HDMI (High-Definition Multimedia Interface) is an industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an

interface between any compatible digital audio/video source, such as a DVD player, or A/V receiver and a compatible digital audio and/or

video monitor, such as a digital TV (DTV). The intended applications for HDMI TVs, and DVD players. The primary advantage is cable

reduction and content protection provisions. HDMI supports standard, enhanced, or high-definition video, plus multichannel digital audio

on a single cable.

NOTE: The HDMI 1.4 will provide 5.1 channel audio support.

HDMI 1.4 - HDMI 2.0 Features

•HDMI Ethernet Channel - Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled

devices without a separate Ethernet cable

•Audio Return Channel - Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio

system, eliminating the need for a separate audio cable

•3D - Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications

•Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings

based on content type

•Additional Color Spaces - Adds support for additional color models used in digital photography and computer graphics

•4K Support - Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema

systems used in many commercial movie theaters

•HDMI Micro Connector - A new, smaller connector for phones and other portable devices, supporting video resolutions up to 1080p

•Automotive Connection System - New cables and connectors for automotive video systems, designed to meet the unique

demands of the motoring environment while delivering true HD quality

Advantages of HDMI

• Quality HDMI transfers uncompressed digital audio and video for the highest, crispest image quality.

• Low -cost HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a

simple, cost-effective manner

• Audio HDMI supports multiple audio formats from standard stereo to multichannel surround sound

• HDMI combines video and multichannel audio into a single cable, eliminating the cost, complexity, and confusion of multiple cables

currently used in A/V systems

• HDMI supports communication between the video source (such as a DVD player) and the DTV, enabling new functionality

12 Technology and components

Major components of your system

1. Stand

2. Hard drive

3. Camera assembly cover

4. Heat sink

5. System fan

6. Speakers

7. Memory module

8. Input and Output bracket

9. Input and Output board shield

10. Input and Output board

11. Headset port

12. Middle frame

13. Microphone

14. Display assembly

15. Power button board

16. Display panel

17. Power supply unit - PSU

Major components of your system 13

18. WLAN card

19. WLAN card shield

20. Power supply unit fan - PSU fan

21. System board

22. Processor

23. Pop-Up Camera

24. System board shield

25. DIMM door

26. Base cover

27. Back cover

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.

14 Major components of your system

Removing and Installing components

Topics:

•Recommended tools

•Screw size list

•System board layout

•Rubber feet

•Cable cover - optional

•Stand

•Back cover

•Hard drive

•Memory module

•System board shield

•Intel Optane

•Solid State Drive -SSD

•Solid State Drive -2230

•WLAN card

•System fan

•Heat sink

•Pop-Up Camera

•Coin cell battery

•Processor

•Base cover

•Power supply unit - PSU

•Power supply unit fan - PSU fan

•Input and Output bracket

•System board

•Speakers

•Power button board

•Microphones

•Input and Output board

•Headset port

•Antennas

•Display panel

•Display cable

•Middle frame

Recommended tools

The procedures in this document require the following tools:

• Phillips #0 screwdriver

• Phillips #1 screwdriver

• Plastic scribe

NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4

Removing and Installing components 15

Screw size list

Table 3. OptiPlex 7470 All-in-One

Component Screw type Quantity Screw image

Cable cover M3x9 1

System board shield M3x5 5

Solid-state drive/Intel Optane

card

M2x2.5 1

WLAN card shield M2x2.5 2

WLAN card M2x2.5 1

System fan M3x5 3

Pop-up camera assembly M3x5 2

Pop-up camera bezel M3x5 3

Base cover M3x5 4

PSU cable M3x5 1

Power supply unit—PSU M3x5 1

Power supply unit fan—PSU fan M3x5 2

Input and Output bracket M3x5 3

System board M3x5 9

Speakers M3x4+7.1 6

Power button board M3x5 1

16 Removing and Installing components

Component Screw type Quantity Screw image

Microphones (2 modules) M2x2.5 2

Input and Output board shield M3x5 2

Input and Output board M3x5 2

Headset port M3x5 1

Antennas M2x2.5 2

Display panel M3x5 11

Middle frame M3x5 15

System board layout

OptiPlex 7470 All-in-One

Removing and Installing components 17

1. PSU power connector 2. Processor

3. Memory slots 4. Back light connector

5. Webcam connector 6. M.2 PCIe/SATA slot

7. System fan connector 8. LPC_Debug

9. Service mode jumper/Password clear jumper/CMOS clear

jumper

10. SATA HDD connector

11. SPI header 12. SIO_signal connector

13. SIO_power connector 14. UAJ connector

15. INT_SPK connector 16. DMIC connector

17. Coin cell battery 18. Power board button connector

19. LVDS connector 20. M.2 WLAN slot

21. PSU fan 22. eDP cable connector

23. Touch cable connector

Rubber feet

18 Removing and Installing components

Removing the rubber feet

1. Follow the procedure in Before working inside your computer.

2. Remove the Stand.

3. Pry the rubber feet at the bottom edge from the display assembly base and pull it out.

Installing the rubber feet

1. Align the rubber feet with the slots on the display assembly base and push it firmly in place.

Removing and Installing components 19

2. Install the Stand.

3. Follow the procedure in After working inside your computer

Cable cover - optional

Removing the cable cover

1. Follow the procedure in Before working inside your computer.

2. Remove the Stand.

3. Remove the single (M3x9) screw that secures the cable cover to the base cover [1].

4. Lift the cable cover off the base cover [2].

20 Removing and Installing components

Installing the cable cover

1. Place the cable cover on the base cover [1].

2. Replace the single (M3x9) screw the secures the cable cover to the base cover [2].

Removing and Installing components 21

3. Install the Stand.

4. Follow the procedure in After working inside your computer

Stand

Removing the stand

The following procedure applies only to systems that are shipped with a Basic All-in-One stand:

1. Follow the procedure in Before working inside your computer.

2. To avoid damaging the display, place the system on a flat, soft, and clean surface .

3. To remove the stand:

a) Press and slide the release tab forward on the cover [1].

b) Hold the tab in the release position and lift the stand upward [2].

c) Slide downward to lift the stand off the back cover [3].

22 Removing and Installing components

Installing the stand

The following procedure applies only to systems that are shipped with a Basic All-in-One stand:

1. To install the stand :

a) Align the tabs on the stand [1].

b) Snap the stand into place on the back cover [2].

Removing and Installing components 23

2. Follow the procedure in After working inside your computer

Back cover

Removing the back cover

1. Follow the procedure in Before working inside your computer.

2. Remove the Stand.

3. Press and hold the tab on the back cover to release it from the latch on the system-board shield and slide the back cover in the

direction shown to release it from the middle frame [1].

4. Lift the back cover from the middle frame and the system-board shield [2].

Installing the back cover

1. Place the back cover on the system.

2. Press and hold the tab [1], and align the notches on the back cover with the slots on the middle frame.

3. Slide the back cover in the direction shown to lock the back cover tab under the latch on the system-board shield [2].

24 Removing and Installing components

4. Install the Stand.

5. Follow the procedure in After working inside your computer.

Hard drive

Removing the hard drive assembly

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

3. To remove the hard drive assembly:

a) Press down the tab securing the hard drive assembly to the system board shield [1].

b) Slide and lift the hard drive assembly from the slot on the display assembly base [2].

Removing and Installing components 25

4. To remove the hard drive bracket:

a) Pry the tabs on hard drive bracket from its slots on the hard drive [1].

b) Slide the hard drive, and lift it away from the bracket [2].

Installing the hard drive assembly

1. To install the hard drive bracket:

a) Align the tabs on the hard drive bracket with the slots on the hard drive [1].

b) Flex the hard drive bracket, and replace the remaining tabs on the hard drive bracket with the slots on the hard drive [2].

26 Removing and Installing components

2. To install the hard drive assembly:

a) Place the hard drive assembly into the slot [1].

b) Slide it to lock the blue tab on the hard drive assembly to the metal tab on the display assembly base [2].

3. Install the following components:

a) Back cover

b) Stand

4. Follow the procedure in After working inside your computer.

Memory module

Removing the memory module

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

Removing and Installing components 27

a) Stand

b) Back cover

3. To locate the memory module on the system board, pry open the DIMM door on the system board shield [1].

4. Pry the retention clips at each end of the memory module slot until the memory module pops up [2].

5. Lift the memory module from the memory module slot [3].

NOTE: Depending on the configuration ordered, your system may have up to two memory modules installed on the

system board.

Installing the memory module

1. Align the notch on the memory module with the tab on the memory module slot, and slide it firmly into the slot at an angle [1].

2. Press the memory module down until it clicks into place [2].

3. Align the tabs on the DIMM door with the slots on the system board shield and snap it into place [3].

28 Removing and Installing components

4. Install the following components:

a) Back cover

b) Stand

5. Follow the procedure in After working inside your computer.

System board shield

Removing the system board shield

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

3. Remove the five (M3x5) screws that secure the system board shield to the display assembly base [1].

4. Lift the system board shield off the display assembly base [2].

Removing and Installing components 29

Installing the system board shield

1. Place the system board shield on system board.

2. Align the slots on the system board shield with the slots on the display assembly base [1].

3. Replace the five screws (M3x5) that secure the system-board shield to the display assembly base [2].

30 Removing and Installing components

4. Install the following components:

a) Back cover

b) Stand

5. Follow the procedure in After working inside your computer.

Intel Optane

Removing the Intel Optane card

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. Remove the screw (M2x2.5) that secures the Intel Optane card to the system board [1].

4. Slide and remove the Intel Optane card from the card slot on the system board [2].

5. Remove the thermal pad [3].

Removing and Installing components 31

Installing the Intel Optane card

1. Replace the thermal pad on the rectangular outline marked on the system board [1].

2. Insert the Intel Optane card into the card slot on the system board [2].

3. Replace the screw (M2x2.5) that secures the Intel Optane card to the system board [3].

NOTE: Intel Optane modules must be installed with a thermal pad.

32 Removing and Installing components

4. Install the following components:

a) System board shield

b) Back cover

c) Stand

5. Follow the procedure in After working inside your computer.

Solid State Drive -SSD

Removing the SSD card

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. Remove the screw (M2x2.5) that secures the SSD card to the system board [1].

4. Slide and remove the SSD card from the card slot on the system board [2].

5. Remove the thermal pad [3].

NOTE: M.2 PCIe SSD with capacity over 512G (512G/1TB/2TB) must be installed with a thermal pad. M.2 SATA SSD

and M.2 PCIe SSD with 128G and 256G do not require a thermal pad.

Removing and Installing components 33

Installing the SSD card

1. Replace the thermal pad on the rectangular outline marked on the system board [1].

NOTE: M.2 PCIe SSD with capacity over 512G (512G/1TB/2TB) must be installed with a thermal pad. M.2 SATA SSD

and M.2 PCIe SSD with 128G and 256G do not require a thermal pad.

2. Insert the SSD card into the card slot on the system board [2].

3. Replace the screw (M2x2.5) that secures the SSD card to the system board [3].

34 Removing and Installing components

4. Install the following components:

a) System board shield

b) Back cover

c) Stand

5. Follow the procedure in After working inside your computer.

Solid State Drive -2230

Removing the 2230 SSD card

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. Remove the screw (M2x2.5) that secures the SSD card to the system board [1].

4. Slide and remove the SSD card from the card slot on the system board [2].

5. Remove the thermal pad [3].

Removing and Installing components 35

Installing the 2230 SSD card

1. Replace the thermal pad on the rectangular outline marked on the system board [1].

2. Insert the SSD card into the card slot on the system board [2].

3. Replace the screw (M2x2.5) that secures the SSD card to the system board [3].

36 Removing and Installing components

4. Install the following components:

a) System board shield

b) Back cover

c) Stand

5. Follow the procedure in After working inside your computer.

WLAN card

Removing the WLAN card

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. To remove the WLAN card shield:

a) Unroute the antenna cable from the routing channel [1].

b) Remove the two screws (M2x2.5) that secure the WLAN card shield to the system board [2].

c) Remove the WLAN card shield from the system board [3].

Removing and Installing components 37

4. To remove the WLAN card:

a) Remove the screw (M2x2.5) that secures the WLAN card bracket and the WLAN to the system board [1].

b) Slide and lift the WLANs card bracket off the WLAN card [2].

c) Disconnect the antenna cables from the WLAN card [3].

d) Slide and remove the WLAN card out of the WLAN card slot [4].

38 Removing and Installing components

Installing the WLAN card

1. To install the WLAN card:

a) Align and replace the WLAN card into the WLAN card slot [1].

b) Connect the antenna cables to the WLAN card [2].

c) Replace the WLAN card bracket on the WLAN card [3].

d) Replace the screw (M2x2.5) that secures the WLAN card bracket and the WLAN to the system board [4].

Removing and Installing components 39

2. To install the WLAN card shield:

a) Align the screw slot on the WLAN card shield with the screw slot on the system board and place the WLAN card shield on the

system board [1].

b) Replace the two screws (M2x2.5) that secure the WLAN card shield to the system board [2]

c) Reroute the antenna cable through to the routing channel [3].

40 Removing and Installing components

3. Install the following components:

a) system board shield

b) Back cover

c) Stand

4. Follow the procedure in After working inside your computer.

System fan

Removing the system fan

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. Disconnect the system fan cable from the socket on the system board [1].

4. Remove the three screws (M3x5) that secure the system fan to the display assembly base [2].

5. Lift the system fan away from the system [3].

Removing and Installing components 41

Installing the system fan

1. Align the screw slots on the system fan with the screw slots on the display assembly base [1].

2. Replace the three screws (M3x5) that secure the system fan to the display assembly base [2].

3. Connect the system fan cable to the socket on the system board [3].

42 Removing and Installing components

4. Install the following components:

a) System board shield

b) Back cover

c) Stand

5. Follow the procedure in After working inside your computer.

Heat sink

The following topics lists heat sink removing and installing steps for unified memory architecture (UMA) and discrete graphics processing

unit (dGPU).

Removing the heat sink - dGPU

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) System fan

3. In the reverse order (as indicated on the heat sink), loosen the nine captive screws that secure the heat sink to the system board and

display assembly base [1].

4. Lift the heat sink off the system board and display assembly base [2].

Removing and Installing components 43

Installing the heat sink - dGPU

1. Align the captive screws on the heat sink with the screw slots on the system board and the display assembly base [1].

2. In the sequential order (as indicated on the heat sink), tighten the captive screws that secure the heat sink to the system board and

display assembly base [2].

3. Install the following components:

44 Removing and Installing components

a) System fan

b) System board shield

c) Back cover

d) Stand

4. Follow the procedure in After working inside your computer.

Removing the heat sink - UMA

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) System fan

3. Loosen the five captive screws in a sequential order [ 1,2,3,4,5] as mentioned on the heat sink.[1].

4. Lift the heat sink off the system board and display assembly base [2].

Installing the heat sink - UMA

1. Align the captive screws on the heat sink with the screw slots on the system board and the display assembly base .[1].

2. Tighten the five captive screws in a sequential order [1,2,3,4,5] to secure the heat sink to the system board and display assembly base.

[2].

Removing and Installing components 45

3. Install the following components:

a) System fan

b) System board shield

c) Back cover

d) Stand

4. Follow the procedure in After working inside your computer.

Pop-Up Camera

Removing the pop-up camera

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. To remove the camera assembly:

a) Remove the two screws (M3x5) that secure the camera assembly cover to the middle frame [1].

b) Lift the camera assembly cover away from the middle frame [2].

c) Disconnect the camera cable from the system board and unroute the camera cable from the routing channel [3].

d) Remove the two screws (M3x5) that secure the pop-up camera assembly to the middle frame [4].

e) Slide and remove the pop-up camera assembly off the middle frame [5].

46 Removing and Installing components

4. To remove the camera bezel:

a) Press the top of the pop-up camera assembly to extend the pop-up camera [1].

b) Remove the three screws (M3x5) that secure the bezel to the pop-up camera assembly [2].

5. To remove the pop-up camera module:

a) Lift the pop-up camera bezel off the pop-up camera assembly [1].

b) Remove the camera module along with the camera cable off the pop-up camera assembly [2]

Removing and Installing components 47

Installing the pop-up camera

1. Follow the procedure in After working inside your computer.

2. To replace the camera module:

a) Replace the camera module along with the camera cable in the slot on the pop-up camera assembly [1].

b) Align the screw slots on the pop-up camera bezel with the screw slots on the pop-up camera assembly [2].

3. To replace the camera bezel:

a) Replace the three screws (M3x5) that secure the pop-up camera bezel to the pop-up camera assembly [1].

b) To retract the pop-up camera, press the top of the pop-up camera assembly [2].

48 Removing and Installing components

4. To replace the camera assembly:

a) Align and place the pop-up camera assembly on the display panel base and route the camera cable through to the routing channel

[1].

b) Replace the two screws (M3x5) that secure the pop-up camera assembly to the middle frame [2].

c) Connect the camera cable to the system board [3].

d) Align and place the pop-up camera assembly cover on the middle frame [4].

e) Replace the two screws (M3x5) that secure the camera assembly cover to the middle frame [5].

5. Install the following components:

a) System board shield

b) Back cover

c) Stand

Removing and Installing components 49

Coin cell battery

Removing the coin cell battery

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

3. Press the tab on the coin cell battery socket until the coin cell battery pops up [1].

4. Lift the coin cell battery out of the coin cell battery socket [2].

Installing the coin cell battery

1. Insert the coin cell battery into the battery socket on the system board, with the positive side facing up [1].

2. Press down the battery into place until it fits securely [2].

50 Removing and Installing components

3. Install the following components:

a) System board shield

b) Back cover

c) Stand

4. Follow the procedure in After working inside your computer.

Processor

Removing the processor

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Heat sink

3. To remove the processor:

a) Release the socket lever by pushing the lever down and out from under the tab on the processor shield [1].

b) Lift the lever upward, and lift the processor shield [2].

CAUTION: The processor socket pins are fragile and can be permanently damaged. Be careful not to bend the

pins in the processor socket when removing the processor out of the socket.

c) Lift the processor and remove it from the processor socket [3].

NOTE: After removing the processor, place it in an antistatic container for reuse, return, or temporary storage.

Do not touch the bottom of the processor to avoid damage to the processor contacts. Touch only the side edges

of the processor.

Removing and Installing components 51

Installing the processor

1. To install the processor:

a) Ensure that the release lever on the processor socket is fully extended in the open position. Align the notches on the processor

with the tabs on the processor socket and place the processor in the processor socket [1].

CAUTION: The pin-1 corner of the processor has a triangle that aligns with the triangle on the pin-1 corner on the

processor socket. When the processor is properly seated, all four corners are aligned at the same height. If one or

more corners of the processor are higher than the others, the processor is not seated properly.

b) Close the processor shield by sliding it under the retention screw [2].

c) Lower the socket lever and push it under the tab to lock it [3].

52 Removing and Installing components

2. Install the following components:

a) Heat sink

b) System board shield

c) Back cover

d) Stand

3. Follow the procedure in After working inside your computer.

NOTE: If the processor is replaced, use the thermal grease provided in the kit to ensure that thermal conductivity is

achieved.

Base cover

Removing the base cover

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Cable cover (optional)

c) Back cover

d) System board shield

3. Remove the four screws (M3x5) that secure the base cover to the display assembly base.

Removing and Installing components 53

4. Pry and lift the base cover off the middle frame.

54 Removing and Installing components

Installing the base cover

1. Align and place the tabs on the base cover with the slots on the middle frame [1].

2. Press the base cover down until it snaps into place on the middle frame [2].

3. Replace the four screws (M3x5) that secure the base cover to the display assembly base.

Removing and Installing components 55

4. Install the following components:

a) System board shield

b) Back cover

c) Cable cover

d) Stand

5. Follow the procedure in After working inside your computer.

Power supply unit - PSU

Removing the power supply unit -PSU

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

3. To release the PSU cable:

a) Remove the single (M3x5) screw securing the power supply socket to the I/O bracket [1].

b) Slide the power supply socket away to remove it from the system [2].

c) Unroute the power supply cables from the retention clips in the chassis [3].

d) Disconnect the power supply cable from the socket on the system board [4].

NOTE: Press the clip downward to release the power supply cable from the system board.

56 Removing and Installing components

4. To remove the PSU:

a) Remove the single (M3x5) screw that secures the PSU to the display assembly base [1].

b) Slide the PSU, and lift it away from the chassis [2].

Removing and Installing components 57

Installing the power supply unit -PSU

1. To install the PSU:

a) Align and slide the PSU, in to the slot on the display assembly base [1].

b) Replace the single screw (M3x5) that secures the PSU to the chassis [2].

2. To install the PSU cable:

a) Connect the power supply cable to the socket on the system board [1].

b) Route back the power supply cables through the retention clips in the I/O bracket [2].

c) Slide and replace the power supply socket on the chassis [3].

d) Replace the single (M3x5) screw securing the power supply socket to the I/O bracket [4].

58 Removing and Installing components

3. Install the following components:

a) Base cover

b) System board shield

c) Back cover

d) Stand

4. Follow the procedure in After working inside your computer.

Power supply unit fan - PSU fan

Removing the power supply unit fan -PSU fan

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

3. To remove the PSU fan:

a) Unroute the power supply cables from the retention clips in the PSU fan.

b) Disconnect the PSU fan cable form the socket on the system board [1].

c) Remove two (M3x5) screws that secure the PSU fan to the display assembly base [2].

d) Lift the PSU fan away from the chassis [3].

Removing and Installing components 59

Installing the power supply unit -PSU fan

1. To install the PSU fan:

a) Align and place the PSU fan on the chassis [1].

b) Replace the two (M3x5) screws that secure the PSU fan to the display assembly base [2].

c) Connect the PSU fan cable to the socket on the system board [3].

d) Route the power supply cables to the retention clips on the PSU fan.

60 Removing and Installing components

2. Install the following components:

a) Base cover

b) System board shield

c) Back cover

d) Stand

3. Follow the procedure in After working inside your computer.

Input and Output bracket

Removing the Input and Output bracket

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

3. Release the PSU cable to remove the Input and Output (I/O) bracket.

4. To release the PSU cable:

a) Remove the single (M3x5) screw securing the power supply socket to the Input and Output (I/O) bracket [1].

b) Slide the power supply socket away to remove it from the system [2].

c) Unroute the power supply cables from the retention clips in the chassis [3].

Removing and Installing components 61

5. To remove the Input and Output (I/O) bracket:

a) Remove the three (M3x5) screws that secure the I/O bracket to the display assembly base [1].

b) Lift the I/O bracket off the display assembly base [2].

62 Removing and Installing components

Installing the Input and Output bracket

1. To install the Input and Output bracket (I/O) bracket:

a) Align the slots on the Input and Output bracket (I/O) bracket with the ports on the system board [1].

b) Replace the three screws (M3x5) that secure the I/O bracket to the display assembly base [2].

2. To install the PSU cable:

a) Route back the power supply cables through the retention clips in the chassis [1].

b) Slide and replace the power supply socket on the chassis [2].

c) Replace the single (M3x5) screw securing the power supply socket to the I/O bracket [3].

Removing and Installing components 63

3. Install the following components:

a) Base cover

b) System board shield

c) Back cover

d) Stand

4. Follow the procedure in After working inside your computer.

System board

Removing the system board

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) Hard drive

d) Memory

e) System board shield

f) Intel Optane

g) SSD

h) WLAN card

i) System fan

j) Heat sink

k) Processor

l) Base cover

m) I/O bracket.

3. Disconnect the following cables from the system board:

64 Removing and Installing components

• PSU fan cable [1]

• Power supply unit cable [2]

• Backlight cable [3]

• Camera cable [4]

• SIO_signal,SIO power, INT_ speaker, and DMIC cables [1]

• Power button board cable [2]

• LVDS cable [3]

Removing and Installing components 65

4. Remove the nine screws (M3x5) that secure the system board to the display assembly base [1].

5. Lift the system board off the display assembly base [2].

66 Removing and Installing components

Installing the system board

1. Align the screw slots on the system board with the screw slots on the display assembly base [1].

2. Replace the nine screws (M3x5) that secure the system board to the display assembly base [2].

Removing and Installing components 67

3. Connect the following cables to the system board:

• Camera cable [1]

• Backlight cable [2]

• Power supply unit cable [3]

• PSU fan cable [4]

68 Removing and Installing components

• LVDS cable [1]

• Power button board cable [2]

• SIO_signal,SIO power,INT_ speaker, and DMIC cables [3]

Removing and Installing components 69

4. Install the following components:

a) I/O bracket

b) Base cover

c) Processor

d) Heat sink

e) System fan

f) WLAN card

g) SSD

h) Intel Optane

i) System board shield

j) Memory

k) Hard drive

l) Back cover

m) Stand

5. Follow the procedure in After working inside your computer

Speakers

Removing the speakers

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

70 Removing and Installing components

e) I/O bracket

3. To disconnect the speakers:

a) Disconnect the speaker cable from the system board [1].

b) Remove the six screws (M3x4+7.1) that secure the speakers to the display-assembly base [2].

c) Unroute the speaker cable from the routing guide on the display assembly base [3].

d) Lift the speakers and the speaker cable off the display assembly base [4].

Installing the speakers

1. To replace the speakers:

a) Place the speakers on the display assembly base and align the screw slots on the speakers with the screw slots on the display

assembly base [1].

b) Route the speaker cable through the routing guides on the display assembly base [2].

c) Replace the six screws (M3x4+7.1) that secure the speakers to the display assembly base [3].

d) Connect the speaker cable to the socket on the system board [4].

Removing and Installing components 71

2. Install the following components:

a) I/O bracket

b) Base cover

c) System board shield

d) Back cover

e) Stand

3. Follow the procedure in After working inside your computer.

Power button board

Removing the power button board

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

e) I/O bracket

f) Speakers

3. To remove the power button board:

a) Open the latch, and disconnect the power button board cable from the system board [1].

b) Peel off the power button board cable from the display assembly base [2].

c) Remove the single screw (M3x5) that secures the power button board to the middle frame [3].

d) Lift the power-button board, along with its cable, off the middle frame [4].

72 Removing and Installing components

Installing the power button board

1. To install the speakers:

a) Using the alignment post, place the power button board into its slot on the middle frame [1].

b) Replace the single screw (M3x5) that secures the power button board to the middle frame [2].

c) Slide the power button board cable under the antenna cable, then adhere the power button board cable to the display assembly

base [3].

d) To secure the cable, slide the power button board cable into the socket on the system board and close the latch [4].

Removing and Installing components 73

2. Install the following components:

a) Speakers

b) I/O bracket

c) Base cover

d) System board shield

e) Back cover

f) Stand

3. Follow the procedure in After working inside your computer.

Microphones

Removing the microphones

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

e) I/O bracket

f) Speakers

g) PSU

3. To remove the microphone and cable:

a) Disconnect the microphone module cable from the system board [1].

b) Remove the microphone module cable from the routing guides on the display assembly base [2].

c) Remove the two screws (M2x2.5) that secure the microphone modules to the middle frame [3].

d) Lift the microphone modules off the slots on the middle frame [4].

74 Removing and Installing components

Installing the microphones

1. To install the microphone and cable:

a) Align and place the microphone modules to the slots on the middle frame [1].

NOTE: Match the numbers on the microphone modules to the numbers on the middle frame while placing the

microphone modules on the middle frame.

b) Replace the two screws (M2x2.5) that secure the microphone modules to the middle frame [2].

c) Route the microphone module cable through the routing guides on the display assembly base [3].

d) Connect the microphones module cable to the socket on the system board [4].

Removing and Installing components 75

2. Install the following components:

a) PSU

b) Speakers

c) I/O bracket

d) Base cover

e) System board shield

f) Back cover

g) Stand

3. Follow the procedure in After working inside your computer.

Input and Output board

Removing the Input and Output board

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

e) I/O bracket

f) Speakers

g) Hard drive

3. To remove the Input and Output board (I/O) board shield:

a) Disconnect the I/O board cable, I/O board power cable, and headset port cable from the system board [1].

NOTE: Use the pull tab to disconnect the I/O board cable from the system board.

76 Removing and Installing components

b) Remove the I/O board cable, I/O-board power cable, and headset port cable from the routing guides on the display assembly base

[2].

c) Remove the two screws (M3x5) securing the I/O board shield to the display assembly base [3].

d) Lift the I/O board shield from the display assembly base [4].

4. To remove the I/O board:

a) Remove the headset port cable from the routing guide on the I/O board [1].

b) Remove the two screws (M3x5) that secure the I/O board to the display assembly base [2].

c) Lift the I/O board with its cables from the display assembly base [3].

Removing and Installing components 77

Installing the input and output board

1. To replace the I/O board:

a) Place and align the Input and Output board (I/O) board onto the display assembly base [1].

b) Replace the two screws (M3x5) that secure the I/O board to the display assembly base [2].

c) Route the headset port cable through the routing guide on the I/O board [3].

78 Removing and Installing components

2. To replace the I/O board shield:

a) Place and align the screw slots on the I/O board shield to the slots on the display assembly base [1].

b) Replace the two screws (M3x5) that secure the I/O board shield to the display assembly base [2].

c) Route the headset port cable, I/O board cable, and I/O board power cable through the routing guides on the display assembly base

[3].

d) Connect the I/O board cable, I/O board power cable, and headset port cable to the system board [4].

Removing and Installing components 79

3. Install the following components:

a) Hard drive

b) Speakers

c) I/O bracket

d) Base cover

e) System board shield

f) Back cover

g) Stand

4. Follow the procedure in After working inside your computer.

Headset port

Removing the headset port

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

e) I/O bracket

f) Speakers

g) Hard drive

h) I/O board

3. Remove the single (M3x5) screw that secures the headset port to the display assembly base [1].

4. Lift the headset port with its cable from the display assembly base [2].

80 Removing and Installing components

Installing the headset port

1. Slide the headset port into its slot on the middle frame and align the screw slot on the headset port to the screw slot on the display

assembly base [1].

2. Replace the single (M3x5) screw that secures the headset port to the display assembly base [2].

Removing and Installing components 81

3. Install the following components:

a) I/O board

b) Hard drive

c) Speakers

d) I/O bracket

e) Base cover

f) System board shield

g) Back cover

h) Stand

4. Follow the procedure in After working inside your computer.

Antennas

Removing the antennas

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

e) I/O bracket

f) Speakers

g) WLAN card

h) I/O board

i) PSU

j) PSU fan

82 Removing and Installing components

3. To remove the antenna:

a) Remove the antenna cables from the routing guides on the display assembly base [1].

b) Remove the two screws (M2x2.5) that secure the antenna modules (2) to the middle frame [2].

c) Carefully peel the tape that secures the antenna cables (2) to the middle frame [3].

d) Release the antenna modules (2) from the tabs and lift the antenna modules off the middle frame.

Installing the antennas

1. To replace the antenna modules:

a) Align the antenna modules (2) with the slots on the middle frame.

b) Adhere the tape that secures the antenna cables (2) to the middle frame [1].

c) Replace the two screws (M2x2.5) that secure the antenna modules (2) to the middle frame [2].

d) Route the antenna cables through the routing guides on the display assembly base [3].

Removing and Installing components 83

2. Install the following components:

a) PSU fan

b) PSU

c) I/O board

d) WLAN card

e) Speakers

f) I/O bracket

g) Base cover

h) System board shield

i) Back cover

j) Stand

3. Follow the procedure in After working inside your computer.

Display panel

Removing the display panel

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) System board shield

d) Base cover

e) I/O bracket

f) System fan

g) Hard drive

h) WLAN card

84 Removing and Installing components

i) System board

j) PSU

k) PSU fan

l) Camera

3. Remove the display backlight cable from the routing guides on the display assembly base [1].

4. Remove the 11 screws (M3x5) that secure the middle frame and display assembly base to the display panel [2].

NOTE: The screws that secure the middle frame and display assembly base to the display panel are silver in color and

etched with "LCD" around the screw holes.

5. Place the system in upright position, holding the display panel and display assembly base, carefully release the display panel from middle

frame and display assembly base [1].

6. Slide the display backlit cable through the slot on the display assembly base [2].

7. Lift the display panel off the middle frame and display assembly base [3].

Removing and Installing components 85

Installing the display panel

1. Place the display assembly base in its upright position, and slide the display panel into the slot between the middle frame and the

display assembly base [1].

2. Route the touchscreen cable through the routing guide on the display assembly base.

3. Push the display backlight cable through the slots on the display assembly base [2].

4. Push the display panel towards the display assembly base, closing the gap between the display panel and the middle frame [3].

NOTE: Ensure the display cable, touchscreen cable, and display backlight cable has been fully threaded through the

slots on the display assembly base before closing the gap between the display panel and the middle frame.

86 Removing and Installing components

5. Place the display assembly base on a clean and flat surface with the display panel facing down.

6. Replace the 11 (M3x5) screws that secure the display panel to the middle frame and display assembly base [1] .

7. Route the display backlit cable through the routing guides on the display assembly base [2] .

NOTE: The screws that secure the middle frame and display assembly base to the display panel are silver in color and

etched with "LCD" around the screw holes.

Removing and Installing components 87

8. Install the following components:

a) Camera

b) PSU fan

c) PSU

d) System board

e) WLAN card

f) Hard drive

g) System fan

h) I/O bracket

i) Base cover

j) System board shield

k) Back cover

l) Stand

9. Follow the procedure in After working inside your computer.

Display cable

Removing the display cable

1. Follow the procedure in Before working inside your computer.

2. Remove the following components:

a) Stand

b) Back cover

c) Hard drive

88 Removing and Installing components

d) System board shield

e) WLAN card

f) System fan

g) Camera

h) Base cover

i) PSU

j) PSU fan

k) I/O bracket

l) System board

m) Speakers

n) Power button board

o) Microphones

p) I/O board

q) Headset port

r) Antennas

s) Display panel

3. To remove the display cable:

a) Fold the securing tape inward [1].

b) To release the cable, press the tabs on both sides [2].

c) Disconnect the cable, and lift it away from the display assembly base [3].

Installing the display cable

1. To install the display cable:

a) Press and hold the tabs on both sides [1].

b) Connect the cable to the display assembly base [2].

c) Fold the securing tape outward [3].

Removing and Installing components 89

2. Install the following components:

a) Display panel

b) Antennas

c) Headset port

d) I/O board

e) Microphones

f) Power button board

g) Speakers

h) System board

i) I/O bracket

j) PSU fan

k) PSU

l) Base cover

m) Camera

n) System fan

o) WLAN card

p) System board shield

q) Hard drive

r) Back cover

s) Stand

3. Follow the procedure in After working inside your computer.

Middle frame

Removing the middle frame

1. Follow the procedure in Before working inside your computer.

90 Removing and Installing components

2. Remove the following components:

a) Stand

b) Back cover

c) Hard drive

d) System board shield

e) WLAN card

f) System fan

g) Camera

h) Base cover

i) PSU

j) PSU fan

k) I/O bracket

l) System board

m) Speakers

n) Power button board

o) Microphones

p) I/O board

q) Headset port

r) Antennas

s) Display panel

3. Remove the 15 screws (M3x5) that secure the middle frame to the display assembly base [1].

4. Slide and lift to release the tabs on the middle frame from the slots on the display assembly base [2].

5. Lift the middle frame off the display assembly base [1].

Removing and Installing components 91

Installing the middle frame

1. Starting from the location shown, slide and align the middle frame to the slots on the display assembly base, and then snap the middle

frame into place on the display assembly base [1,2].

92 Removing and Installing components

2. Press and secure and the tabs on the middle frame to the slots on the display assembly base [1].

3. Replace the 15 screws (M3x5) that secure the middle frame to the display assembly base [2].

Removing and Installing components 93

4. Install the following components:

a) Display panel

b) Antennas

c) Headset port

d) I/O board

e) Microphones

f) Power button board

g) Speakers

h) System board

i) I/O bracket

j) PSU fan

k) PSU

l) Base cover

m) Camera

n) System fan

o) WLAN card

p) System board shield

q) Hard drive

r) Back cover

s) Stand

5. Follow the procedure in After working inside your computer.

94 Removing and Installing components

Troubleshooting your computer

Enhanced Pre-Boot System Assessment — ePSA

diagnostics

The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the

BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device

groups allowing you to:

The ePSA diagnostics can be initiated by the FN+PWR buttons while powering on the computer.

• Run tests automatically or in an interactive mode

• Repeat tests

• Display or save test results

• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)

• View status messages that inform you if tests are completed successfully

• View error messages that inform you of problems encountered during testing

NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer

terminal when the diagnostic tests are performed.

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.

Diagnostics

Power status light: Indicates the power status.

Solid Amber – The system is unable to boot to the operating system. This indicates that the power supply or another device in the

system is failing.

Blinking Amber – The system is unable to boot to the operating system. This indicates that the power supply is normal but another

device in the system is failing or not installed properly.

NOTE: To determine the device that is failing, see the light patterns .

Off – System is in hibernation or turned off.

The power status light blinks amber along with beep codes indicating failures.

Troubleshooting your computer 95

For example, the power status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause.

This 2,3 pattern continues until the computer is turned off indicating the Recovery image is not found.

The following table shows different light patterns and what they indicate:

Table 4. Diagnostic LED/Beep codes

LED # of Flashes Problem description Faults

2,1 Faulty system board Faulty system board

2,2 Faulty system board, power supply unit

(PSU), or cabling

Faulty system board, power supply unit (PSU), or cabling

2,3 Faulty system board, CPU, or DIMMS Faulty system board, power supply unit (PSU), or DIMMS

2,4 Faulty coin cell battery Faulty coin cell battery

2,5 BIOS Recovery AutoRecovery trigger, recovery image is not found or is

invalid

2,6 CPU CPU Error

2,7 Memory Memory SPD failure

3,3 Memory No memory detected

3,5 Memory Modules incompatible or invalid configuration

3,6 BIOS Recovery On-demand trigger, recovery image is not found

3,7 BIOS Recovery On-demand trigger, recovery image is invalid

The system may emit a series of beeps during start-up if the errors or problems cannot be displayed. The repetitive beep codes help the

user troubleshoot problems with the system.

Camera status light: Indicates whether the camera is in use.

• Solid white – Camera is in use.

• Off – Camera is not in use.

LCD built in self test - BIST

All-in-One (AIO) systems supports LCD BIST similar to any other Dell systems that have BIST test implemented. It allows the user to

isolate the LCD during troubleshooting to determine which sub-system is at fault. The main difference is the lack of an integrated

keyboard scan controller in the AIO. When BIST is initiated, an internal generated pattern from the LCD will be emitted for user's

observation. This pattern will go by sequence through this pattern, Red- Green-Blue-White-Blue where each pattern is emitted for 2 to 3

seconds.

The following images displays the pattern of the colors on the LCD:

Standard display

96 Troubleshooting your computer

Alternative display

Invoking BIST

To invoke the LCD BIST, turn on the system and press and hold the Display Built-in Self Test button plus the Power button together.

Release the buttons when Red- Green-Blue-White-Blue pattern is displayed on screen.

Troubleshooting your computer 97

Getting help

Topics:

•Contacting Dell

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.

98 Getting help

Table of Contents

DELL OPTIPLEX 7470 AIO MLK I7 9-9700 User Manual

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