Troubleshooting Guide

Troubleshooting Guide www.hp.com A–5
POST Error Messages
219-ECC Memory
Module Detected
ECC Modules not
supported on this
Platform
Recently added memory
module(s) support ECC
memory error correction.
1. If additional memory was recently
added, remove it to see if the problem
remains.
2. Check product documentation for
memory support information.
301-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
303-Keyboard
Controller Error
I/O board keyboard
controller.
1. Reconnect keyboard with computer
turned off.
2. Replace the system board.
304-Keyboard or
System Unit Error
Keyboard failure. 1. Reconnect the keyboard with
computer turned off.
2. Ensure that none of the keys are
depressed.
3. Replace the keyboard.
4. Replace the system board.
404-Parallel Port
Address Conflict
Detected
Both external and
internal ports are
assigned to
parallel port X.
1. Remove any parallel port expansion
cards.
2. Clear CMOS. (See Appendix B,
“Password Security and Resetting
CMOS.”)
3. Reconfigure card resources and/or
run Computer Setup.
410-Audio Interrupt
Conflict
IRQ address conflicts
with another device.
Enter Computer Setup and reset the IRQ in
Advanced > Onboard Devices.
Numeric Codes and Text Messages (Continued)
Code/Message Probable Cause Recommended Action