Dell OptiPlex 7070 Tower Service Manual - Page 5

Troubleshooting, Getting help, Updating the BIOS in Linux and Ubuntu

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General options...71 System information...72 Video screen options...73 Security...74 Secure boot options...75 Intel Software Guard Extensions options...75 Performance...76 Power management...76 Post behavior...77 Manageability...78 Virtualization support...78 Wireless options...78 Maintenance...78 System logs...79 Advanced configuration...79 Updating the BIOS...79 Updating the BIOS in Windows...79 Updating the BIOS in Linux and Ubuntu...80 Updating the BIOS using the USB drive in Windows 80 Updating the BIOS from the F12 One-Time boot menu 80 System and setup password...81 Assigning a system setup password...81 Deleting or changing an existing system setup password 82 Clearing CMOS settings...82 Clearing BIOS (System Setup) and System passwords 82 Chapter 6: Troubleshooting...83 Enhanced Pre-Boot System Assessment - ePSA diagnostics 83 Running the ePSA Diagnostics...83 Power-Supply Unit Built-in Self-Test ...84 Diagnostics...84 Diagnostic error messages...86 System error messages...88 Recovering the operating system...89 Real-Time Clock (RTC Reset)...89 Backup media and recovery options...89 WiFi power cycle...90 Chapter 7: Getting help...91 Contacting Dell...91 Contents 5

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General options
.............................................................................................................................................................
71
System information
.....................................................................................................................................................
72
Video screen options
..................................................................................................................................................
73
Security
..........................................................................................................................................................................
74
Secure boot options
....................................................................................................................................................
75
Intel Software Guard Extensions options
..............................................................................................................
75
Performance
.................................................................................................................................................................
76
Power management
....................................................................................................................................................
76
Post behavior
................................................................................................................................................................
77
Manageability
................................................................................................................................................................
78
Virtualization support
..................................................................................................................................................
78
Wireless options
...........................................................................................................................................................
78
Maintenance
.................................................................................................................................................................
78
System logs
...................................................................................................................................................................
79
Advanced configuration
.............................................................................................................................................
79
Updating the BIOS
............................................................................................................................................................
79
Updating the BIOS in Windows
................................................................................................................................
79
Updating the BIOS in Linux and Ubuntu
................................................................................................................
80
Updating the BIOS using the USB drive in Windows
..........................................................................................
80
Updating the BIOS from the F12 One-Time boot menu
....................................................................................
80
System and setup password
...........................................................................................................................................
81
Assigning a system setup password
........................................................................................................................
81
Deleting or changing an existing system setup password
.................................................................................
82
Clearing CMOS settings
..................................................................................................................................................
82
Clearing BIOS (System Setup) and System passwords
..........................................................................................
82
Chapter 6: Troubleshooting
.........................................................................................................
83
Enhanced Pre-Boot System Assessment — ePSA diagnostics
............................................................................
83
Running the ePSA Diagnostics
.................................................................................................................................
83
Power-Supply Unit Built-in Self-Test
..........................................................................................................................
84
Diagnostics
..........................................................................................................................................................................
84
Diagnostic error messages
..............................................................................................................................................
86
System error messages
...................................................................................................................................................
88
Recovering the operating system
.................................................................................................................................
89
Real-Time Clock (RTC Reset)
........................................................................................................................................
89
Backup media and recovery options
.............................................................................................................................
89
WiFi power cycle
...............................................................................................................................................................
90
Chapter 7: Getting help
...............................................................................................................
91
Contacting Dell
...................................................................................................................................................................
91
Contents
5