Running the SupportAssist Pre-Boot System Performance Check............................................................... 114
Power-Supply Unit Built-in Self-Test .........................................................................................................................114
System-diagnostic lights.................................................................................................................................................114
Recovering the operating system.................................................................................................................................117
Real Time ClockāRTC reset.........................................................................................................................................117
Backup media and recovery options............................................................................................................................ 117
WiFi power cycle...............................................................................................................................................................117
Chapter 6: Getting help and contacting Dell............................................................................... 119
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