HP Compaq dx2308, Руководство по обслуживанию и справочник

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Activity Possible Cause Recommended Action
Green Power LED flashes six times,
once every second, followed by a
two second pause.
Pre-video graphics error. For systems with a graphics card:
1
. Reseat the graphics card.
2
. Replace the graphics card.
3
. Replace the system board.
For systems with integrated graphics, replace the system
board.
Green Power LED flashes eight
times, once every second, followed
by a two second pause.
Invalid ROM based on bad
checksum.
1
. Reflash the system ROM with the latest BIOS image.
2
.
Replace the system board.
System does not power on and LEDs
are not flashing.
System unable to power on. Press and hold the power button for less than 4 seconds.
If the hard drive LED turns green, the power button is
working correctly. Try the following:
1
.
Check that the voltage selector (some models),
located on the rear of the power supply, is set to the
appropriate voltage. Proper voltage setting depends
on your region.
2
. Replace the system board.
OR
Press and hold the power button for less than 4 seconds.
If the hard drive LED does not turn on green then:
1
. Check that the unit is plugged into a working AC
outlet.
2
. Open hood and check that the power button harness
is properly connected to the system board.
3
. Check that both power supply cables are properly
connected to the system board.
4
. Check to see if the 5V_aux light on the system board
is turned on. If it is turned on, then replace the power
button harness. If the problem persists, replace the
system board.
5
. If the 5V_aux light on the system board is not turned
on, remove the expansion cards one at a time until
the 5V_aux light on the system board turns on. It the
problem persists, replace the power supply.
90 Appendix
C
Troubleshooting ENWW