Service Manual

Procedure....................................................................................................................................................................................... 50
36 Replacing the left-I/O cover.......................................................................................................................51
Procedure....................................................................................................................................................................................... 51
Post-requisites................................................................................................................................................................................51
37 Removing the access door........................................................................................................................ 52
Prerequisites...................................................................................................................................................................................52
Procedure....................................................................................................................................................................................... 52
38 Replacing the access door........................................................................................................................ 53
Procedure....................................................................................................................................................................................... 53
Post-requisites................................................................................................................................................................................53
39 Removing the loop-back cable..................................................................................................................54
Prerequisites...................................................................................................................................................................................54
Procedure....................................................................................................................................................................................... 54
40 Replacing the loop-back cable................................................................................................................. 57
Procedure....................................................................................................................................................................................... 57
Post-requisites ............................................................................................................................................................................... 57
41 Accessing and updating BIOS.................................................................................................................. 58
Accessing BIOS settings................................................................................................................................................................ 58
Entering BIOS setup during POST............................................................................................................................................ 58
Updating BIOS.................................................................................................................................................................................58
Using the USB invocation script...............................................................................................................................................59
Flashing the BIOS from a USB flash drive................................................................................................................................ 59
Updating the BIOS on a Windows system................................................................................................................................59
Using UEFI capsule update on an Ubuntu system....................................................................................................................59
Dell Command | Configure (DCC)..............................................................................................................................................60
Edge Device Manager (EDM)...................................................................................................................................................60
Default BIOS settings......................................................................................................................................................................61
General (BIOS level 1)...............................................................................................................................................................61
System configuration (BIOS level 1).........................................................................................................................................62
Security (BIOS level 1)..............................................................................................................................................................62
Secure boot (BIOS level 1)........................................................................................................................................................63
Performance (BIOS level 1)...................................................................................................................................................... 64
Power management (BIOS level 1)...........................................................................................................................................64
POST behavior (BIOS level 1)................................................................................................................................................... 64
Virtualization support (BIOS level 1).........................................................................................................................................65
Maintenance (BIOS level 1)......................................................................................................................................................65
System logs (BIOS level 1)........................................................................................................................................................65
42 Diagnostics...................................................................................................................................................66
43 Appendix....................................................................................................................................................... 68
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