vi Contents
Preparing the System for Diagnosing Problems....................................................5-8
Monitoring POST.................................................................................................. 5-9
Verifying Proper Operation of Key System Indicators.......................................5-10
Confirming Loading of the Operating System....................................................5-10
Specific Problems and Corrective Actions.......................................................................5-11
Power LED Does Not Light........................................................................................ 5-11
Incorrect or No Beep Code..........................................................................................5-11
No Characters Appear on Screen................................................................................ 5-12
Characters are Distorted or Incorrect.......................................................................... 5-12
System Cooling Fans Do Not Rotate...........................................................................5-12
Diskette Drive Activity LED Does Not Light.............................................................5-13
CD-ROM Drive Activity Light Does Not Light......................................................... 5-13
Problems with Application Software...........................................................................5-13
Bootable CD-ROM Is Not Detected............................................................................5-14
Problems with the Network..............................................................................................5-14
Plug and Play Installation Tips.........................................................................................5-14
Error Messages................................................................................................................. 5-15
POST Error Codes and Messages................................................................................5-15
POST Error Code Hardware References.....................................................................5-20
Beep Codes..................................................................................................................5-21
How to Identify BIOS and BMC Revision Levels...........................................................5-22
Lamps............................................................................................................................... 5-23
LAN ACCESS Lamp ..................................................................................................5-23
STATUS Lamp............................................................................................................5-23
POWER/SLEEP Lamp................................................................................................5-25
DISK ACCESS Lamp................................................................................................. 5-25
Access Lamps..............................................................................................................5-25
Hard Disk Drive Lamp................................................................................................5-26
Power Supply Lamps...................................................................................................5-27
DC Power Lamp..........................................................................................................5-27
Power Status Lamp......................................................................................................5-27
AC Power Lamp..........................................................................................................5-27
LAN Connector Lamps............................................................................................... 5-28
6. Illustrated Parts Breakdown
Exploded View...................................................................................................................6-2
Field Replaceable Units......................................................................................................6-3
Pentium Processors........................................................................................................6-5
Replaceable Parts...................................................................................................6-5
Hard Disk Drives...........................................................................................................6-5
Replaceable Parts...................................................................................................6-5
DVD Drives...................................................................................................................6-5
Replaceable Parts...................................................................................................6-5
DAT Tape Drives.......................................................................................................... 6-5
Replaceable Parts...................................................................................................6-5
RAID Controllers and Cache ........................................................................................6-6
Replaceable Parts...................................................................................................6-6
SCSI Controllers............................................................................................................6-6
Replaceable Parts...................................................................................................6-6
Network Controllers......................................................................................................6-6
Replaceable Parts...................................................................................................6-6
Memory Expansion....................................................................................................... 6-6
Replaceable Parts...................................................................................................6-6