Contents
Introduction .................................................................................................................................. 8
What's new ................................................................................................................................................. 8
Revision history ............................................................................................................................................ 9
375445-402 (April 2011) .................................................................................................................. 9
375445-401 (January 2011) .............................................................................................................. 9
375445-xx9 (June 2010) .................................................................................................................... 9
375445-xx8 (July 2009) ................................................................................................................... 10
375445-xx7 (November 2008) ......................................................................................................... 11
375445-xx6 (September 2007)......................................................................................................... 11
375445-xx5 (June 2006) .................................................................................................................. 12
375445-xx4 (May 2006) ................................................................................................................. 12
375445-xx3 (September 2005)......................................................................................................... 12
Getting started ............................................................................................................................ 13
How to use this guide ................................................................................................................................. 13
Pre-diagnostic steps .................................................................................................................................... 14
Important safety information .............................................................................................................. 14
Symptom information ........................................................................................................................ 17
Common problem resolution ........................................................................................................ 20
Loose connections ...................................................................................................................................... 20
Service notifications .................................................................................................................................... 20
Firmware updates ...................................................................................................................................... 20
DIMM handling guidelines .......................................................................................................................... 21
Hard drive guidelines ................................................................................................................................. 21
SCSI hard drive guidelines ................................................................................................................ 21
Hard drive LED combinations ...................................................................................................................... 22
Diagnostic flowcharts .................................................................................................................. 24
Troubleshooting flowcharts .......................................................................................................................... 24
Start diagnosis flowchart ................................................................................................................... 26
General diagnosis flowchart .............................................................................................................. 26
Power-on problems flowchart ............................................................................................................. 28
POST problems flowchart .................................................................................................................. 32
Hardware problems .................................................................................................................... 39
Power problems ......................................................................................................................................... 39
Power source problems ..................................................................................................................... 39
Contents 3