Dell Vostro 3470 Service Manual page 4

M.2 SATA SSD ................................................................................................................................................................. 41
Removing M.2 SATA SSD .........................................................................................................................................41
Installing M.2 SATA SSD ........................................................................................................................................... 41
WLAN card....................................................................................................................................................................... 42
Removing the WLAN card........................................................................................................................................ 42
Installing the WLAN card.......................................................................................................................................... 43
Heat sink assembly.......................................................................................................................................................... 44
Removing the heat sink assembly............................................................................................................................44
Installing the heat sink assembly.............................................................................................................................. 46
Memory modules............................................................................................................................................................. 48
Removing the memory module................................................................................................................................ 48
Installing the memory module...................................................................................................................................49
Power switch....................................................................................................................................................................50
Removing power switch........................................................................................................................................... 50
Installing the power switch....................................................................................................................................... 52
Power supply unit............................................................................................................................................................ 54
Removing the power supply unit PSU.................................................................................................................... 54
Installing the power supply unit PSU....................................................................................................................... 57
Coin cell battery............................................................................................................................................................... 60
Removing the coin cell battery.................................................................................................................................60
Installing the coin cell battery....................................................................................................................................61
Processor.......................................................................................................................................................................... 62
Removing the processor........................................................................................................................................... 62
Installing the processor............................................................................................................................................. 63
System board....................................................................................................................................................................64
Removing the system board.....................................................................................................................................64
Installing the system board....................................................................................................................................... 69
4 Troubleshooting........................................................................................................................................... 75
Enhanced Pre-Boot System Assessment - ePSA diagnostics................................................................................ 75
Running the ePSA Diagnostics.................................................................................................................................75
Diagnostics........................................................................................................................................................................75
Diagnostic error messages..............................................................................................................................................76
System error messages................................................................................................................................................... 79
5 Getting help.................................................................................................................................................80
Contacting Dell.................................................................................................................................................................80
4 Contents