Dell OptiPlex 3280 Service Manual page 5

Chapter 4: System setup............................................................................................................. 81
BIOS overview.................................................................................................................................................................... 81
Entering BIOS setup program......................................................................................................................................... 81
Navigation keys.................................................................................................................................................................. 81
Boot Sequence...................................................................................................................................................................82
System setup options.......................................................................................................................................................82
Updating the BIOS............................................................................................................................................................ 88
Updating the BIOS in Windows................................................................................................................................88
Updating the BIOS in Linux and Ubuntu................................................................................................................ 89
Updating the BIOS using the USB drive in Windows..........................................................................................89
Updating the BIOS from the F12 One-Time boot menu.....................................................................................89
System and setup password.......................................................................................................................................... 90
Assigning a system setup password....................................................................................................................... 90
Deleting or changing an existing system setup password..................................................................................91
Chapter 5: Troubleshooting.........................................................................................................92
SupportAssist diagnostics............................................................................................................................................... 92
Diagnostic LED behavior..................................................................................................................................................92
Recovering the operating system................................................................................................................................. 93
Updating the BIOS in Windows......................................................................................................................................94
Updating the BIOS using the USB drive in Windows............................................................................................... 94
Backup media and recovery options.............................................................................................................................94
WiFi power cycle............................................................................................................................................................... 94
Drain residual flea power (perform hard reset)......................................................................................................... 95
Chapter 6: Getting help and contacting Dell................................................................................ 96
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