Compaq Evo D300 Troubleshooting Manual page 65

Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes
Activity
Flashing Num
Lock LED on
Keyboard (on
select models.)
Ä
Some models support ECC memory and non-ECC memory. Other models
CAUTION:
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
(keyboard).
Flashing Scroll
Lock LED on
keyboard (on
select models.)
Green Power
LED flashes
1x / second.
Green Power
LED On.
*L = Long, S = Short
Troubleshooting Guide
Beeps Probable Cause
1S, 2L* System memory not
present.
None Failed Boot Block.
2L, 1S* System board hardware
failure (prior to
graphics).
None Computer in normal
Suspend mode.
None Computer on.
Post Error Messages
Recommended Action
1. Check memory module
(see the relevant section
of the Hardware
Reference Guide ).
2. Remove and reseat
memory module.
3. See the "Solving Memory
Problems" section of this
guide.
Reflash the ROM using a
ROMPaq diskette. See the
"Failsafe Boot Block ROM"
section of the Desktop
Management Guide.
Replace system board.
None
None
A–15