HP Personal Computer 43361 Manual de usuario descargar pdf (Pagina 190)

D–6 433611-001 Service Reference Guide, dx7300

Troubleshooting Without Diagnostics

Power LED flashes Red, four

times, once every second,

followed by a two second

pause, and the computer

beeps four times. Beeps

continue for five iterations

after which the LED flashes

will continue until the

problem is resolved.

Power failure (power

supply is overloaded).

1. Check that the voltage selector

(some models), is set to the

appropriate voltage. Proper

voltage depends on the region.

2. Open the hood and ensure the

4- or 6-wire power supply cable

is seated into the connector on

the system board.

3. Check if a device is causing the

problem by removing ALL

attached devices (such as hard,

diskette or optical drives, and

expansion cards). Power on the

system. If the system enters the

POST, then power off and

replace one device at a time

and repeat this procedure until

failure occurs. Replace the

device causing the failure.

Continue adding devices one at

a time to ensure all devices are

functioning properly.

4. Replace the power supply.

5. Replace the system board.

Solving Power Supply Problems (Continued)

Problem Cause Solution

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HP Personal Computer 43361 Manual de usuario Pagina 190