Dell OptiPlex 7090 Micro Form Factor Service Manual page 4

Installing the system board....................................................................................................................................... 39
Graphics card...................................................................................................................................................................... 41
Removing the graphics card......................................................................................................................................41
Installing the graphics card....................................................................................................................................... 42
Chapter 3: Software.................................................................................................................... 44
Operating system.............................................................................................................................................................. 44
Drivers and downloads..................................................................................................................................................... 44
Chapter 4: System setup............................................................................................................. 45
BIOS overview................................................................................................................................................................... 45
Updating the BIOS in Windows .................................................................................................................................... 45
Updating BIOS on systems with BitLocker enabled............................................................................................46
Updating your system BIOS using a USB flash drive..........................................................................................46
Entering BIOS setup program.........................................................................................................................................47
Navigation keys..................................................................................................................................................................47
Boot Sequence...................................................................................................................................................................47
System setup options....................................................................................................................................................... 47
Clearing CMOS settings.................................................................................................................................................. 56
System and setup password.......................................................................................................................................... 56
Assigning a system setup password....................................................................................................................... 57
Deleting or changing an existing system setup password................................................................................. 57
Clearing BIOS (System Setup) and System passwords.......................................................................................... 58
Chapter 5: Troubleshooting.........................................................................................................59
SupportAssist diagnostics...............................................................................................................................................59
Display built-in self test................................................................................................................................................... 59
Diagnostics..........................................................................................................................................................................59
Recovering the operating system.................................................................................................................................. 61
Flashing BIOS (USB key)................................................................................................................................................. 61
Flashing the BIOS...............................................................................................................................................................61
System error messages................................................................................................................................................... 62
WiFi power cycle............................................................................................................................................................... 62
Flea power release............................................................................................................................................................ 63
Chapter 6: Getting help and contacting Dell................................................................................ 64
4 Contents