NEC 120Lg manual Vi Contents, Post Error Code Hardware References

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

vi Contents