Dell OptiPlex 7480 All-In-One - Page 64

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Steps

1. Disconnect the display back-light cable from the connector on the system board.

2. Disconnect the display cable from the connector on the system board.

3. Disconnect the PSU cable from the connector on the system board.

Removing and installing components

Main Page

Table of Contents3
Safety Instructions6
Before Working Inside Your Computer6
Before You Begin6
Electrostatic Discharge-ESD Protection7
ESD Field Service Kit7
Transporting Sensitive Components8
After Working Inside Your Computer8
Removing and Installing Components10
Recommended Tools10
Screw List10
Stand12
Removing the Fixed Stand12
Installing the Fixed Stand12
Removing the Articulating Stand13
Installing the Articulating Stand15
Removing the Height Adjustable Stand16
Installing the Height Adjustable Stand17
Cable Cover-Optional18
Removing the Cable Cover18
Installing the Cable Cover20
Back Cover21
Removing the Back Cover21
Installing the Back Cover23
Hard Drive24
Removing the Hard Drive24
Installing the Hard Drive25
Memory Modules26
Removing the Memory Modules26
Installing the Memory Modules27
System-Board Shield28
Removing the System-Board Shield28
Installing the System-Board Shield29
Solid-State Drive30
Removing the M.2 2230 Solid-State Drive30
Installing the M.2 2230 Solid-State Drive31
Removing the M.2 2280 Solid-State Drive/Intel Optane Memory Module32
Installing the M.2 2280 Solid-State Drive/Intel Optane Memory Module33
System Fan34
Removing the System Fan34
Installing the System Fan35
Coin-Cell Battery36
Removing the Coin-Cell Battery36
Installing the Coin-Cell Battery37
Wireless Card38
Removing the Wireless Card38
Installing the Wireless Card39
Camera Assembly41
Removing the Camera Assembly41
Installing the Camera Assembly42
Bottom Cover43
Removing the Bottom Cover43
Installing the Bottom Cover44
Power-Supply Unit45
Removing the Power-Supply Unit (PSU)45
Installing the Power-Supply Unit (PSU)47
Power-Supply Fan49
Removing the PSU Fan49
Installing the PSU Fan50
Heat Sink51
Removing the Heat Sink-UMA51
Installing the Heat Sink-UMA52
Removing the Heat Sink-Discrete53
Installing the Heat Sink-Discrete54
Processor55
Removing the Processor55
Installing the Processor56
Rear-I/O Bracket58
Removing the Rear-I/O Bracket58
Installing the Rear-I/O Bracket59
System Board61
Removing the System Board61
Installing the System Board65
Speakers68
Removing the Speakers68
Installing the Speakers69
Power-Button Board70
Removing the Power-Button Board70
Installing the Power-Button Board71
Microphones72
Removing the Microphones72
Installing the Microphones73
Side I/O-Board74
Removing the Side-I/O Board74
Installing the Side-I/O Board75
Audio Board76
Removing the Audio Board76
Installing the Audio Board77
Antennas78
Removing the Antenna Modules78
Installing the Antenna Modules79
Display Panel80
Removing the Display Panel80
Installing the Display Panel82
Middle Frame84
Removing the Middle Frame84
Installing the Middle Frame86
Software88
Operating System88
Downloading the Drivers88
System Setup89
BIOS Overview89
Entering BIOS Setup Program89
Navigation Keys89
Boot Sequence89
System Setup Options90
System and Setup Password96
Assigning a System Setup Password97
Deleting or Changing an Existing System Setup Password97
Troubleshooting98
Dell Supportassist Pre-Boot System Performance Check Diagnostics98
Running the Supportassist Pre-Boot System Performance Check98
Display Built-In Self Test98
Diagnostics99
Recovering the Operating System100
Flashing BIOS (USB Key)100
Flashing the BIOS100
Wifi Power Cycle101
Flea Power Release101
Getting Help and Contacting Dell102

Dell OptiPlex 7480 All-In-One - Page 64

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