Compaq Compaq Evo Desktop manual Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes

Post Error Messages

Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes

Activity	Beeps	Probable Cause	Recommended Action
Red or Yellow	None	Power supply	1. Push in power button.
Power LED		overloaded.		LED should be green.
flashes every			2.	Remove all AC power
2 seconds (on
				from computer, wait
select models.)
				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.
Flashing Power	None	Unseated riser board.	1. Remove riser board.
and Hard Drive			2.	Wipe connector.
Green LEDs.
			3.	Reinstall riser board (see

the Hardware Reference Guide for directions on removing the riser board).

A–16 Troubleshooting Guide