Dell Precision 3240 Compact Service Manual page 5

Chapter 5: Troubleshooting.........................................................................................................82
Recovering the operating system................................................................................................................................. 82
Real-Time Clock (RTC Reset)........................................................................................................................................82
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................82
Running the SupportAssist Pre-Boot System Performance Check................................................................83
Diagnostic LED behavior..................................................................................................................................................83
Diagnostic error messages.............................................................................................................................................. 84
WiFi power cycle................................................................................................................................................................87
Chapter 6: Getting help and contacting Dell................................................................................ 88
Contents 5