Troubleshooting Guide

Troubleshooting Guide www.hp.com A–7
POST Error Messages
512-Chassis, Rear
Chassis, or Front
Chassis Fan not
Detected
Chassis, rear chassis, or
front chassis fan is not
connected or may have
malfunctioned.
1. Reseat chassis, rear chassis, or front
chassis fan.
2. Reseat fan cable.
3. Replace chassis, rear chassis, or front
chassis fan.
514-CPU or Chassis
Fan not Detected
CPU or chassis fan is not
connected or may have
malfunctioned.
1. Reseat CPU or chassis fan.
2. Reseat fan cable.
3. Replace CPU or chassis fan.
601-Diskette
Controller Error
Diskette controller
circuitry or floppy drive
circuitry incorrect.
1. Run Computer Setup.
2. Check and/or replace cables.
3. Clear CMOS. (See Appendix B,
“Password Security and Resetting
CMOS.”)
4. Replace diskette drive.
5. Replace the system board.
605-Diskette Drive
Type Error
Mismatch in drive type. 1. Run Computer Setup.
2. Disconnect any other diskette
controller devices (tape drives).
3. Clear CMOS. (See Appendix B,
“Password Security and Resetting
CMOS.”)
610-External
Storage Device
Failure
External tape drive not
connected.
Reinstall tape drive or press F1 and allow
system to reconfigure without the drive.
611-Primary Floppy
Port Address
Assignment Conflict
Configuration error. Run Computer Setup and check the
configuration in Advanced >
Onboard Devices.
660-Display cache
is detected
unreliable
Integrated graphics
controller display cache
is not working properly
and will be disabled.
Replace system board if minimal graphics
degrading is an issue.
Numeric Codes and Text Messages (Continued)
Code/Message Probable Cause Recommended Action