Dell OptiPlex 7780 All-In-One - Page 5

Installing the middle frame............................................................................................................................................83
3 Software................................................................................................................................... 85
Operating system................................................................................................................................................................ 85
Downloading the drivers.....................................................................................................................................................85
4 System setup.............................................................................................................................86
BIOS overview..................................................................................................................................................................... 86
Entering BIOS setup program............................................................................................................................................86
Navigation keys....................................................................................................................................................................86
Boot Sequence.................................................................................................................................................................... 86
System setup options..........................................................................................................................................................87
System and setup password..............................................................................................................................................93
Assigning a system setup password........................................................................................................................... 94
Deleting or changing an existing system setup password........................................................................................94
5 Troubleshooting.........................................................................................................................95
Dell SupportAssist Pre-boot System Performance Check diagnostics........................................................................95
Running the SupportAssist Pre-Boot System Performance Check....................................................................... 95
Display built-in self test.......................................................................................................................................................95
Diagnostics........................................................................................................................................................................... 96
Recovering the operating system......................................................................................................................................97
Flashing BIOS (USB key)....................................................................................................................................................97
Flashing the BIOS................................................................................................................................................................ 97
WiFi power cycle................................................................................................................................................................. 98
Flea power release...............................................................................................................................................................98
6 Getting help and contacting Dell..................................................................................................99
Contents
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