Dell OptiPlex 7090 Tower Service Manual - Page 5

Software, System setup, Troubleshooting

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Chapter 3: Software...84 Drivers and downloads...84 Chapter 4: System setup...85 Boot menu...85 Navigation keys...85 Boot Sequence...86 System setup options...86 Updating the BIOS...95 Updating the BIOS in Windows...95 Updating the BIOS in Linux and Ubuntu...95 Updating the BIOS using the USB drive in Windows 95 Updating the BIOS from the F12 One-Time boot menu 96 System and setup password...97 Assigning a system setup password...97 Deleting or changing an existing system setup password 97 Chapter 5: Troubleshooting...99 SupportAssist diagnostics...99 Diagnostic LED behavior...99 Recovering the operating system...100 Updating the BIOS in Windows...101 Updating the BIOS using the USB drive in Windows 101 Backup media and recovery options...101 WiFi power cycle...101 Drain residual flea power (perform hard reset)...102 Chapter 6: Getting help and contacting Dell 103 Contents 5

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Chapter 3: Software
....................................................................................................................
84
Drivers and downloads
.....................................................................................................................................................
84
Chapter 4: System setup
.............................................................................................................
85
Boot menu
...........................................................................................................................................................................
85
Navigation keys
..................................................................................................................................................................
85
Boot Sequence
...................................................................................................................................................................
86
System setup options
.......................................................................................................................................................
86
Updating the BIOS
............................................................................................................................................................
95
Updating the BIOS in Windows
................................................................................................................................
95
Updating the BIOS in Linux and Ubuntu
................................................................................................................
95
Updating the BIOS using the USB drive in Windows
.........................................................................................
95
Updating the BIOS from the F12 One-Time boot menu
....................................................................................
96
System and setup password
...........................................................................................................................................
97
Assigning a system setup password
.......................................................................................................................
97
Deleting or changing an existing system setup password
.................................................................................
97
Chapter 5: Troubleshooting
.........................................................................................................
99
SupportAssist diagnostics
...............................................................................................................................................
99
Diagnostic LED behavior
.................................................................................................................................................
99
Recovering the operating system
................................................................................................................................
100
Updating the BIOS in Windows
.....................................................................................................................................
101
Updating the BIOS using the USB drive in Windows
...............................................................................................
101
Backup media and recovery options
............................................................................................................................
101
WiFi power cycle
..............................................................................................................................................................
101
Drain residual flea power (perform hard reset)
........................................................................................................
102
Chapter 6: Getting help and contacting Dell
...............................................................................
103
Contents
5