Installing The Power Supply...................................................................................................................................29
Removing the System Board...................................................................................................................................30
Installing the System Board....................................................................................................................................31
Removing The PSU Thermal Sensor.......................................................................................................................31
Installing The PSU Thermal Sensor........................................................................................................................32
3 System Setup.............................................................................................................................33
System Setup..........................................................................................................................................................33
Boot Menu..............................................................................................................................................................33
Boot Menu Enhancements.....................................................................................................................................33
Timing Key Sequences...........................................................................................................................................34
Beep Codes and Text Error Messages...................................................................................................................34
Navigation...............................................................................................................................................................34
System Setup Options.............................................................................................................................................35
4 Troubleshooting.........................................................................................................................41
Diagnostic LEDs......................................................................................................................................................41
Diagnostic Light Patterns.................................................................................................................................41
Beep Codes.............................................................................................................................................................46
Error Messages......................................................................................................................................................48
Address mark not found...................................................................................................................................48
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.............................................49
Alert! Security override Jumper is installed....................................................................................................49
Attachment failed to respond...........................................................................................................................49
Bad command or file name .............................................................................................................................49
Bad error-correction code (ECC) on disk read.................................................................................................49
Controller has failed.........................................................................................................................................49
Data error ........................................................................................................................................................49
Decreasing available memory .........................................................................................................................49
Diskette drive 0 seek failure.............................................................................................................................50
Diskette read failure.........................................................................................................................................50
Diskette subsystem reset failed.......................................................................................................................50
Gate A20 failure................................................................................................................................................50
General failure .................................................................................................................................................50
Hard-disk drive configuration error .................................................................................................................50
Hard-disk drive controller failure.....................................................................................................................50
Hard-disk drive failure .....................................................................................................................................50
Hard-disk drive read failure.............................................................................................................................50
Invalid configuration information-please run SETUP program........................................................................51
Invalid Memory configuration, please populate DIMM1.................................................................................51
Keyboard failure...............................................................................................................................................51