Compaq 177620-006, Compaq Evo Desktop manual Num Lock LED On

Post Error Messages

Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes

Activity	Beeps	Probable Cause	Recommended Action
Flashing Num	1S, 2L*	System memory not	1.	Check memory module
Lock LED on		present.		(see the relevant section
Keyboard (on				of the Hardware
select models.)				Reference Guide).
			2.	Remove and reseat
				memory module.
			3.	See the “Solving Memory
				Problems” section of this
				guide.

ÄCAUTION: Some models support ECC memory and non-ECC memory. Other models support only non-ECC memory. For those systems that do support ECC memory, Compaq does not support mixing ECC and non-ECC memory. In addition, the system will not boot the operating system.

Num Lock LED On	None	Failed Boot Block.	Reflash the ROM using a
(keyboard).			ROMPaq diskette. See the
			“Failsafe Boot Block ROM”
			section of the Desktop
			Management Guide.
Flashing Scroll	2L, 1S*	System board hardware	Replace system board.
Lock LED on		failure (prior to
keyboard (on		graphics).
select models.)
Green Power	None	Computer in normal	None
LED flashes		Suspend mode.
1x / second.
Green Power	None	Computer on.	None
LED On.
*L = Long, S = Short

Troubleshooting Guide A–15