Table 11-2Diagnostic Front Panel LEDs and Audible Codes (continued)

Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

 

Red Power LED flashes ten

10

Bad option card.

1.

Check each option card by removing the

times, once every second,

 

 

 

card (one at a time if multiple cards), then

followed by a two second

 

 

 

power on the system to see if fault goes

pause. Beeps stop after fifth

 

 

 

away.

iteration but LEDs continue

 

 

2.

Once a bad card is identified, remove and

until problem is solved.

 

 

 

 

 

 

replace the bad option card.

 

 

 

3.

Replace the system board.

 

 

 

 

 

Red Power LED flashes

11

The current processor

1.

Install a TXT capable processor.

eleven times, once every

 

does not support a

2.

Disable TXT in the Computer Setup (F10)

second, followed by a two

 

feature previously

second pause. Beeps stop

 

enabled on this system.

 

utility.

after fifth iteration but LEDs

 

 

3.

Reinstall the original processor.

continue until problem is

 

 

solved.

 

 

 

 

 

 

 

 

System does not power on

None

System unable to power

Press and hold the power button for less than 4

and LEDs are not flashing.

 

on.

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.

 

 

 

 

 

304 Chapter 11 POST Error Messages