HP Vectra VL800 Troubleshooting Manual page 9

NOTE
Symptom...
PC does not start – the status
LED indicator is not illuminated.
If the PC still does not start
Case 1 — If There Is No Activity At All
When the power button is pressed, the PC shows no sign of activity at
all. The monitor is blank, there is no sound from the hard disk drive or
fan, or the status LED does not light up.
Monitor is blank.
•
No hard disk drive or fan noise.
•
Status LED does not light up.
•
Before removing the cover, always switch off the display and PC.
Disconnect the power cord and any accessory cables. When checks
have been completed, close the PC and reconnect the power cord and
accessory cables. Verify that the PC boots correctly.
Check that...
The power cord is correctly connected.
The power outlet is working.
The voltage switch is correctly set (located
on the rear of the PC).
Check that...
None of the internal devices are causing the
problem.
1 Your PC Does Not Start Correctly
Case 1 — If There Is No Activity At All
How...
Connect the power cord to a grounded power outlet and the
PC.
Plug a light into the grounded power outlet and check it
comes on.
1 Disconnect the power cord.
2 Select the correct setting.
3 Reconnect the power cord.
4 Start the PC.
How...
1 Remove internal power connectors from all internal
devices (except for the system board).
2 Reconnect the power cord.
3 Reconnect the power connectors one by one to the
internal devices to see if a device is defective.
4 If a device is found to be defective, contact HP Support or
your authorized dealer.
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