Table 10-2Diagnostic Front Panel LEDs and Audible Codes (continued)

Activity

Beeps

Possible Cause

Recommended Action

Red Power LED flashes six

6

times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.

Pre-video graphics error.

For systems with a graphics card:

 

1.

Reseat the graphics card.

 

2.

Replace the graphics card.

 

3.

Replace the system board.

For systems with integrated graphics, replace the system board.

Red Power LED flashes seven

7

times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.

System board failure

Replace the system board.

(ROM detected failure

 

prior to video).

 

Red Power LED flashes eight

8

Invalid ROM based on

1.

Reflash the system ROM with the latest BIOS

times, once every second,

 

bad checksum.

 

image.

followed by a two second

 

 

2.

Replace the system board.

pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.

Red Power LED flashes nine

9

times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.

System powers on but is unable to boot.

1.Check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region.

2.Unplug the AC power cord from the computer, wait 30 seconds, then plug the power cord back in to the computer.

3.Replace the system board.

4.Replace the processor.

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 until

 

 

2. Once a bad card is identified, remove and

problem is solved.

 

 

 

 

 

replace the bad option card.

 

 

 

 

 

 

 

3.

Replace the system board.

 

 

 

 

 

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 197