Dell OptiPlex 3000 Series Service Manual page 4

Removing the hard drive and optical drive module............................................................................................... 30
Installing the hard drive and optical drive module.................................................................................................. 33
Memory module............................................................................................................................................................... 36
Removing memory module....................................................................................................................................... 36
Installing the memory module................................................................................................................................... 37
Heatsink fan......................................................................................................................................................................38
Removing heat sink fan.............................................................................................................................................38
Installing the heat sink fan........................................................................................................................................ 39
Heatsink............................................................................................................................................................................ 40
Removing heat sink................................................................................................................................................... 40
Installing heat sink...................................................................................................................................................... 42
Intrusion switch................................................................................................................................................................ 44
Removing intrusion switch........................................................................................................................................44
Installing the intrusion switch................................................................................................................................... 45
Power switch....................................................................................................................................................................46
Removing power switch............................................................................................................................................46
Installing the power switch....................................................................................................................................... 47
Processor.......................................................................................................................................................................... 48
Removing processor.................................................................................................................................................. 48
Installing the processor............................................................................................................................................. 49
M.2 PCIe SSD ................................................................................................................................................................. 50
Removing the M.2 PCIe SSD ..................................................................................................................................50
Installing the M.2 PCIe SSD ..................................................................................................................................... 51
Power supply unit............................................................................................................................................................ 52
Removing power supply unit or PSU.......................................................................................................................52
Installing the power supply unit or PSU.................................................................................................................. 54
Speaker............................................................................................................................................................................. 56
Removing speaker..................................................................................................................................................... 56
Installing the speaker................................................................................................................................................. 57
System board................................................................................................................................................................... 58
Removing system board............................................................................................................................................58
Installing the system board....................................................................................................................................... 62
4 Troubleshooting........................................................................................................................................... 66
Enhanced Pre-Boot System Assessment - ePSA diagnostics................................................................................66
Running the ePSA Diagnostics.................................................................................................................................66
Diagnostics....................................................................................................................................................................... 66
Diagnostic error messages..............................................................................................................................................68
System error messages....................................................................................................................................................71
5 Getting help................................................................................................................................................. 73
Contacting Dell................................................................................................................................................................. 73
4 Contents