46 Troubleshooting........................................................................................................................................120
Enhanced Pre-Boot System Assessment (ePSA) diagnostics................................................................................. 120
Running the ePSA diagnostics................................................................................................................................120
System diagnostic lights.................................................................................................................................................121
Flashing BIOS (USB key)...............................................................................................................................................122
Flashing the BIOS...........................................................................................................................................................122
Enabling Intel Optane memory......................................................................................................................................122
Disabling Intel Optane memory..................................................................................................................................... 123
WiFi power cycle.............................................................................................................................................................123
Flea power release..........................................................................................................................................................123
47 Getting help and contacting Dell...............................................................................................................125
Self-help resources.........................................................................................................................................................125
Contacting Dell............................................................................................................................................................... 125
Contents 7
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