Dell OptiPlex 7070 Ultra Service Manual page 4

Heat-sink.............................................................................................................................................................................. 32
Removing the heat-sink................................................................................................................................................32
Installing the heat-sink.................................................................................................................................................. 33
Replacing the chassis..........................................................................................................................................................35
4 System setup.............................................................................................................................36
Boot menu............................................................................................................................................................................ 36
Navigation keys....................................................................................................................................................................36
Boot Sequence.....................................................................................................................................................................37
System setup options..........................................................................................................................................................37
General options.............................................................................................................................................................. 37
System information....................................................................................................................................................... 38
Video............................................................................................................................................................................... 39
Security........................................................................................................................................................................... 39
Secure boot....................................................................................................................................................................40
Intel Software Guard Extensions..................................................................................................................................41
Performance................................................................................................................................................................... 41
Power management...................................................................................................................................................... 42
POST behavior...............................................................................................................................................................43
Manageability................................................................................................................................................................. 43
Virtualization support.................................................................................................................................................... 43
Wireless...........................................................................................................................................................................44
Maintenance screen...................................................................................................................................................... 44
System logs.................................................................................................................................................................... 45
Advanced Configuration............................................................................................................................................... 45
Updating the BIOS in Windows ........................................................................................................................................ 45
Updating BIOS on systems with BitLocker enabled..................................................................................................46
Updating your BIOS from the F12 One-Time Boot Menu........................................................................................ 46
Updating your system BIOS using a USB flash drive................................................................................................46
System and setup password.............................................................................................................................................. 47
Assigning a system setup password............................................................................................................................47
Deleting or changing an existing system setup password........................................................................................47
5 Troubleshooting......................................................................................................................... 49
Enhanced Pre-Boot System Assessment (ePSA) diagnostics......................................................................................49
Running the ePSA diagnostics.....................................................................................................................................49
WiFi power cycle................................................................................................................................................................. 49
Diagnostic LED.................................................................................................................................................................... 50
6 Getting help...............................................................................................................................52
Contacting Dell.................................................................................................................................................................... 52
4 Contents