Compaq 177620-006, Compaq Evo Desktop manual Second on select

Post Error Messages

Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes

Activity	Beeps	Probable Cause	Recommended Action
Yellow or Green	None	System memory error.	1. Check memory module
Power LED			(see the relevant section
flashes every			of the Hardware
second (on select			Reference Guide).
models.)			2. Remove and reseat
			memory module.
			3. See the “Solving Memory
			Problems” section of this
			guide.
Red or Yellow	None	Processor unseated.	Reseat processor in system
Power LED On			board.
Red or Yellow	None	Computer overheated.	1. Install computer cover
Power LED is:			or access panel if
1. Flashing four			necessary.
times per			2. Ensure that computer air
second, Or			vents are not blocked and
2. Flashing two			internal fan is running.
times one
second apart,
followed by a
two second
pause, Or
3. Not flashing.

Troubleshooting Guide A–17