Dell Precision R5500 (Early 2011) - Manual (Page 5)

20 Front Chassis Assembly.........................................................................................................53
Removing the Front Chassis Assembly ...................................................................................................................53
Installing the Front-Chassis Assembly ...................................................................................................................54
21 Processor and Heat Sink.......................................................................................................55
Removing the Processors and Heat Sink ...............................................................................................................55
Installing the Processors and Heat Sink .................................................................................................................57
22 Memory.....................................................................................................................................59
Removing the Memory ............................................................................................................................................59
Installing the Memory .............................................................................................................................................60
23 System Board...........................................................................................................................63
Removing the System Board ...................................................................................................................................63
Installing the System Board ....................................................................................................................................64
24 System Setup...........................................................................................................................67
Boot Menu ..............................................................................................................................................................67
Timing Key Sequences ...........................................................................................................................................68
Dell Diagnostics ......................................................................................................................................................68
System Setup Options .............................................................................................................................................68
25 Troubleshooting.......................................................................................................................75
Diagnostic LEDs ......................................................................................................................................................75
Beep Codes .............................................................................................................................................................81
Error Messages ......................................................................................................................................................84
Address mark not found ...................................................................................................................................84
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.
............................................84
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
Controller has failed .........................................................................................................................................84
Data error ........................................................................................................................................................84
Decreasing available memory .........................................................................................................................85
Diskette drive 0 seek failure .............................................................................................................................85
Diskette read failure .........................................................................................................................................85
Diskette subsystem reset failed .......................................................................................................................85
Gate A20 failure ................................................................................................................................................85
General failure .................................................................................................................................................85