HP Deskpro /M Desktop PC 486/33M Deskpro Personal Computers Service Reference - Page 60

Red Power LED Blinks Every, Red power LED

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POST Error Messages Continued Screen Message Beeps* Probable Cause Recommended Action Flashing Power and Hard Drive Green LEDs None Red Power LED Blinks Every None 2 or More Seconds Red Power LED Blinks Every None Second Red power LED ON * L = Long, S = Short None Unseated riser board. 1. Remove riser board. 2. Wipe connector. 3. Reinstall riser board. Power supply overloaded. 1. Push in power button. LED should be green. 2. Remove all AC power from computer, wait 30 seconds, then apply power. 3. Remove load from power supply by removing options one at a time until computer runs. 4. Check for damage to system board. 5. Replace system board. 6. Replace power supply. System memory error. 1. Check memory module. 2. Remove and reseat memory module. 3. See the "Solving Memory Problems" section of this guide. Processor unseated. Reseat processor in system board. D-10 POST Error Messages

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D-10
POST Error Messages
POST Error Messages
Continued
Screen Message
Beeps*
Probable Cause
Recommended Action
Flashing Power and Hard
Drive Green LEDs
None
Unseated riser board.
1.
Remove riser board.
2.
Wipe connector.
3.
Reinstall riser board.
Red Power LED Blinks Every
2 or More Seconds
None
Power supply overloaded.
1.
Push in power button. LED
should be green.
2.
Remove all AC power from
computer, wait 30 seconds,
then apply power.
3.
Remove load from power
supply by removing options
one at a time until computer
runs.
4.
Check for damage to system
board.
5.
Replace system board.
6.
Replace power supply.
Red Power LED Blinks Every
Second
None
System memory error.
1.
Check memory module.
2.
Remove and reseat memory
module.
3.
See the "Solving Memory
Problems" section of this
guide.
Red power LED ON
None
Processor unseated.
Reseat processor in system board.
* L = Long, S = Short