Compaq Evo D300 Troubleshooting Manual page 66

Post Error Messages
Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes
Activity
Red or Yellow
Power LED
flashes every
2 seconds (on
select models.)
Flashing Power
and Hard Drive
Green LEDs.
A–16
Beeps Probable Cause
None Power supply
overloaded.
None Unseated riser board.
Recommended Action
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.
1. Remove riser board.
2. Wipe connector.
3. Reinstall riser board (see
the Hardware Reference
Guide for directions on
removing the riser board).
Troubleshooting Guide