Chapter 5: Troubleshooting......................................................................................................... 78
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................78
Running the SupportAssist Pre-Boot System Performance Check................................................................ 78
Power-Supply Unit Built-in Self-Test ..........................................................................................................................78
System diagnostic lights.................................................................................................................................................. 78
Recovering the operating system..................................................................................................................................79
Real Time Clock—RTC reset......................................................................................................................................... 80
Backup media and recovery options.............................................................................................................................80
WiFi power cycle............................................................................................................................................................... 80
Chapter 6: Getting help and contacting Dell.................................................................................81
Contents 5
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