Dell Precision 3431 - Page 4

Heat sink and fan.................................................................................................................................................................43
Removing heat sink and heat sink fan........................................................................................................................ 43
Installing heat sink and heat sink fan...........................................................................................................................44
Intrusion switch....................................................................................................................................................................46
Removing intrusion switch........................................................................................................................................... 46
Installing the intrusion switch.......................................................................................................................................46
Power switch....................................................................................................................................................................... 47
Removing power switch............................................................................................................................................... 47
Installing the power switch...........................................................................................................................................48
Processor..............................................................................................................................................................................49
Removing processor......................................................................................................................................................49
Installing the processor.................................................................................................................................................50
M.2 PCIe Solid State Drive -SSD ......................................................................................................................................51
Removing the M.2 PCIe Solid State Drive -SSD........................................................................................................51
Installing the M.2 PCIe Solid State Drive -SSD......................................................................................................... 52
Intel Optane card.................................................................................................................................................................53
Removing the Intel Optane card..................................................................................................................................53
Installing the Intel Optane card.................................................................................................................................... 54
SD card reader - optional................................................................................................................................................... 55
Removing the SD card reader..................................................................................................................................... 55
Installing the SD card reader........................................................................................................................................56
Internal Antenna - optional................................................................................................................................................. 57
Removing the Internal Antenna................................................................................................................................... 57
Installing the Internal Antenna..................................................................................................................................... 60
External Antenna - optional................................................................................................................................................65
Removing the External Antenna..................................................................................................................................65
Installing the External Antenna.................................................................................................................................... 68
M.2 2230 WLAN card - optional........................................................................................................................................73
Removing the M.2 2230 WLAN card..........................................................................................................................73
Installing the M.2 2230 WLAN card............................................................................................................................ 74
Power supply unit................................................................................................................................................................ 75
Removing power supply unit or PSU.......................................................................................................................... 75
Installing the power supply unit or PSU...................................................................................................................... 77
Speaker................................................................................................................................................................................. 79
Removing speaker......................................................................................................................................................... 79
Installing the speaker.....................................................................................................................................................80
System fan............................................................................................................................................................................ 81
Removing the system fan............................................................................................................................................. 81
Installing the system fan............................................................................................................................................... 82
System board.......................................................................................................................................................................83
Removing system board............................................................................................................................................... 83
Installing the system board...........................................................................................................................................87
5 Troubleshooting your computer...................................................................................................90
Enhanced Pre-Boot System Assessment — ePSA diagnostics................................................................................... 90
Running the ePSA Diagnostics.................................................................................................................................... 90
Diagnostics........................................................................................................................................................................... 90
Diagnostic error messages................................................................................................................................................. 92
System error messages...................................................................................................................................................... 95
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