Dell OptiPlex 5070 Micro - Page 4

WLAN card.......................................................................................................................................................................... 31
Removing the WLAN card..........................................................................................................................................31
Installing the WLAN card........................................................................................................................................... 33
M.2 PCIe SSD.................................................................................................................................................................... 35
Removing the M.2 PCIe SSD .................................................................................................................................. 35
Installing the M.2 PCIe SSD .....................................................................................................................................36
Coin-cell battery................................................................................................................................................................ 37
Removing coin cell battery........................................................................................................................................ 37
Installing coin cell battery.......................................................................................................................................... 38
Optional module.................................................................................................................................................................39
Removing optional module........................................................................................................................................ 39
Installing optional module........................................................................................................................................... 41
System board..................................................................................................................................................................... 42
Removing system board.............................................................................................................................................42
Chapter 4: Troubleshooting......................................................................................................... 45
Enhanced Pre-Boot System Assessment — ePSA diagnostics............................................................................ 45
Running the ePSA Diagnostics.................................................................................................................................45
Diagnostics..........................................................................................................................................................................46
Power-Supply Unit Built-in Self-Test ..........................................................................................................................47
Diagnostic error messages.............................................................................................................................................. 48
System error messages................................................................................................................................................... 50
Recovering the operating system.................................................................................................................................. 51
Real Time Clock—RTC reset.......................................................................................................................................... 51
Backup media and recovery options.............................................................................................................................52
WiFi power cycle............................................................................................................................................................... 52
Chapter 5: Getting help...............................................................................................................53
Contacting Dell.................................................................................................................................................................. 53
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