16 Power Supply..........................................................................................49
Removing The Power Supply..........................................................................................49
Installing The Power Supply...........................................................................................51
17 System Board..........................................................................................53
Removing The System Board..........................................................................................53
Installing The System Board...........................................................................................54
18 Power Supply Unit (PSU) Thermal Sensor.........................................57
Removing The PSU Thermal Sensor...............................................................................57
Installing The PSU Thermal Sensor................................................................................58
19 System Setup..........................................................................................59
System Setup..................................................................................................................59
Boot Menu.......................................................................................................................59
Boot Menu Enhancements..............................................................................................59
Timing Key Sequences....................................................................................................60
Beep Codes and Text Error Messages............................................................................61
Navigation.......................................................................................................................61
System Setup Options.....................................................................................................61
20 Troubleshooting......................................................................................73
Diagnostic LEDs..............................................................................................................73
Diagnostic Light Patterns..........................................................................................73
Beep Codes.....................................................................................................................80
Error Messages...............................................................................................................83
Address mark not found............................................................................................83
Alert! Previous attempts at booting this system have failed at checkpoint
[nnnn]. For help in resolving this problem, please note this checkpoint and
contact Dell Technical Support................................................................................83
Alert! Security override Jumper is installed.............................................................84
Attachment failed to respond...................................................................................84
Bad command or file name ......................................................................................84
Bad error-correction code (ECC) on disk read.........................................................84