Dell OptiPlex 3090 Service Manual page 5

Intel Software Guard Extensions options.............................................................................................................. 74
Performance................................................................................................................................................................. 74
Power management.................................................................................................................................................... 75
Post behavior................................................................................................................................................................75
Virtualization support..................................................................................................................................................76
Wireless options........................................................................................................................................................... 76
Maintenance..................................................................................................................................................................77
System logs................................................................................................................................................................... 77
Advanced configuration............................................................................................................................................. 77
SupportAssist System Resolution............................................................................................................................78
Updating the BIOS............................................................................................................................................................ 78
Updating the BIOS in Windows................................................................................................................................ 78
Updating the BIOS in Linux and Ubuntu................................................................................................................ 78
Updating the BIOS using the USB drive in Windows..........................................................................................78
Updating the BIOS from the F12 One-Time boot menu.....................................................................................79
System and setup password...........................................................................................................................................80
Assigning a system setup password....................................................................................................................... 80
Deleting or changing an existing system setup password.................................................................................80
Clearing BIOS (System Setup) and System passwords........................................................................................... 81
Chapter 5: Troubleshooting.........................................................................................................82
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................82
Running the SupportAssist Pre-Boot System Performance Check................................................................82
Diagnostic LED behavior..................................................................................................................................................82
Recovering the operating system................................................................................................................................. 84
Real-Time Clock (RTC Reset)........................................................................................................................................84
Backup media and recovery options.............................................................................................................................84
WiFi power cycle............................................................................................................................................................... 84
Chapter 6: Getting help and contacting Dell................................................................................ 86
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