HP dx2310 manual Diagnostic Front Panel LEDs and Audible Codes Continued, Activity, Beeps

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.

D–24 490778-001 Service Reference Guide