Dell OptiPlex 5400 Service Manual page 4

Removing the system fan-35 W........................................................................................................................... 37
Installing the system fan-35 W............................................................................................................................. 38
Removing the system fan-65 W...........................................................................................................................39
Installing the system fan-65 W............................................................................................................................. 40
Coin-cell battery.................................................................................................................................................................41
Removing the coin-cell battery.................................................................................................................................41
Installing the coin-cell battery.................................................................................................................................. 42
Wireless card...................................................................................................................................................................... 43
Removing the wireless card...................................................................................................................................... 43
Installing the wireless card........................................................................................................................................ 44
Camera assembly...............................................................................................................................................................46
Removing the camera assembly.............................................................................................................................. 46
Installing the camera assembly.................................................................................................................................47
Bottom cover..................................................................................................................................................................... 48
Removing the bottom cover..................................................................................................................................... 48
Installing the bottom cover....................................................................................................................................... 49
Power-supply unit............................................................................................................................................................. 50
Removing the power-supply unit (PSU)................................................................................................................50
Installing the power-supply unit (PSU)..................................................................................................................52
Power-supply fan.............................................................................................................................................................. 54
Removing the PSU fan...............................................................................................................................................54
Installing the PSU fan.................................................................................................................................................55
Heat sink..............................................................................................................................................................................56
Removing the heat sink-35 W...............................................................................................................................56
Installing the heat sink-35 W................................................................................................................................. 57
Removing the heat sink-65 W...............................................................................................................................58
Installing the heat sink-65 W.................................................................................................................................59
Processor............................................................................................................................................................................ 60
Removing the processor............................................................................................................................................60
Installing the processor...............................................................................................................................................61
Rear-I/O bracket...............................................................................................................................................................63
Removing the rear-I/O bracket............................................................................................................................... 63
Installing the rear-I/O bracket................................................................................................................................. 64
System board..................................................................................................................................................................... 65
Removing the system board..................................................................................................................................... 65
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.........................................................................................................................................76
Side I/O-board................................................................................................................................................................... 77
Removing the side I/O-board................................................................................................................................... 77
Installing the side I/O-board..................................................................................................................................... 78
Audio board.........................................................................................................................................................................80
Removing the audio board........................................................................................................................................ 80
4 Contents