Activity

Beeps

Possible cause

Recommended action

 

 

 

 

 

 

 

 

 

until failure occurs. Replace the device that is

 

 

 

 

causing the failure. Continue adding devices

 

 

 

 

one at a time to ensure all devices are

 

 

 

 

functioning properly.

 

 

 

3.

Replace the power supply.

 

 

 

4.

Replace the system board.

 

 

 

 

Red Power LED flashes five

5

Pre-video memory error.

CAUTION: To avoid damage to the DIMMs or the

times, once every second,

 

 

system board, you must unplug the computer power

followed by a two second pause.

 

 

cord before attempting to reseat, install, or remove

Beeps stop after fifth iteration

 

 

a DIMM module.

but LEDs continue until problem

 

 

1.

Reseat DIMMs.

is solved.

 

 

 

 

 

 

 

 

 

2.

Replace DIMMs one at a time to isolate the

 

 

 

 

faulty module.

 

 

 

3.

Replace third-party memory with HP memory.

 

 

 

4.

Replace the system board.

 

 

 

 

Red Power LED flashes six times,

6

Pre-video graphics error.

For systems with a graphics card:

once every second, followed by

 

 

1.

Reseat the graphics card.

a two second pause. Beeps stop

 

 

 

 

 

 

after fifth iteration but LEDs

 

 

2.

Replace the graphics card.

continue until problem is solved.

 

 

 

 

 

 

 

 

 

3.

Replace the system board.

 

 

 

For systems with integrated graphics, replace the

 

 

 

system board.

 

 

 

 

Red Power LED flashes seven

7

System board failure (ROM

Replace the system board.

times, once every second,

 

detected failure prior to

 

 

followed by a two second pause.

 

video).

 

 

Beeps stop after fifth iteration

 

 

 

 

but LEDs continue until problem

 

 

 

 

is solved.

 

 

 

 

Red Power LED flashes eight

8

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

Invalid ROM based on bad checksum.

1.Reflash the system ROM with the latest BIOS image.

2.Replace the system board.

Red Power LED flashes nine

9

System powers on but is

1.

Check that the voltage selector, located on the

times, once every second,

 

unable to boot.

 

rear of the power supply (some models), is set

followed by a two second pause.

 

 

 

to the appropriate voltage. Proper voltage

Beeps stop after fifth iteration

 

 

 

setting depends on your region.

but LEDs continue until problem

 

 

2.

Unplug the AC power cord from the computer,

is solved.

 

 

 

 

 

wait 30 seconds, then plug the power cord

 

 

 

 

 

 

 

 

back in to the computer.

 

 

 

3.

Replace the system board.

 

 

 

 

 

Red Power LED flashes ten

10

Bad option card.

1.

Check each option card by removing the card

times, once every second,

 

 

 

(one at a time if multiple cards), then power on

followed by a two second pause.

 

 

 

the system to see if fault goes away.

Beeps stop after fifth iteration

 

 

2.

Once a bad card is identified, remove and

 

 

 

replace the bad option card.

206 Chapter 9 POST error messages