Dell 23.8" OptiPlex 7410 All-in-One Desktop Computer (Gray) - Manual (Page 6)

Assigning a system setup password......................................................................................................................123
Deleting or changing an existing system setup password............................................................................... 123
Clearing CMOS settings.................................................................................................................................................123
Clearing BIOS (System Setup) and System passwords.........................................................................................124
Chapter 9: Troubleshooting....................................................................................................... 125
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 125
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 125
Power-Supply Unit Built-in Self-Test ........................................................................................................................ 125
System-diagnostic lights................................................................................................................................................126
Recovering the operating system................................................................................................................................ 127
Real Time Clock—RTC reset........................................................................................................................................ 127
Backup media and recovery options........................................................................................................................... 128
Wi-Fi power cycle............................................................................................................................................................ 128
Chapter 10: Getting help and contacting Dell............................................................................. 129
6 Contents