Troubleshooting Without Diagnostics

Diagnostic Front Panel LEDs and Audible Codes (Continued)

Activity

Beeps

Possible Cause

Recommended Action

System does not

None

System unable to

Press and hold the power button for

power on and LEDs

 

power on.

less than 4 seconds. If the hard drive

are not flashing.

 

 

LED turns green, then:

 

 

 

1.

Check that the voltage selector,

 

 

 

 

located on the rear of the power

 

 

 

 

supply, is set to the appropriate

 

 

 

 

voltage*. Proper voltage setting

 

 

 

 

depends on your region.

 

 

 

2.

Remove the expansion cards one

 

 

 

 

at a time until the 5V_aux light on

 

 

 

 

the system board turns on.

 

 

 

3.

Replace the system board.

 

 

 

OR

 

Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn 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.

5. If the 5V_aux light on the system board is not turned on, then replace the power supply.

6. Replace the system board.

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490778-001

Service Reference Guide

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HP dx2310 manual Diagnostic Front Panel LEDs and Audible Codes

dx2310 specifications

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