Troubleshooting Guide

A–6 www.hp.com Troubleshooting Guide
POST Error Messages
411-Network
Interface Card
Interrupt Conflict
IRQ address conflicts
with another device.
Enter Computer Setup and reset the IRQ in
Advanced > Onboard Devices.
501-Display
Adapter Failure
Graphics display
controller.
1. Reseat the graphics card
(if applicable).
2. Clear CMOS. (See Appendix B,
“Password Security and Resetting
CMOS.”)
3. Verify monitor is attached and turned
on.
4. Replace the graphics card (if
possible).
510-Flash Screen
Image Corrupted
Flash Screen image has
errors.
Reflash the system ROM with the latest
BIOS image.
511-CPU, CPUA, or
CPUB Fan not
Detected
CPU fan is not connected
or may have
malfunctioned.
1. Reseat CPU fan.
2. Reseat fan cable.
3. Replace CPU fan.
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.
Numeric Codes and Text Messages (Continued)
Code/Message Probable Cause Recommended Action