Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

 

Red Power LED flashes four

4

Power failure (power

1.

Open the hood and ensure the 4 or 6-wire

times, once every second,

 

supply is overloaded).

 

power supply cable is seated into the

followed by a two second

 

 

 

connector on the system board.

pause. Beeps stop after fifth

 

 

2.

Check if a device is causing the problem by

iteration but LEDs continue until

 

 

problem is solved.

 

 

 

removing ALL attached devices. Power on

 

 

 

 

the system. If the system enters the POST,

 

 

 

 

then power off and replace one device at a

 

 

 

 

time and repeat this procedure 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. times, once every second,

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

CAUTION: To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module.

1.Reseat DIMMs.

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

6

Pre-video graphics error.

For systems with a graphics card:

times, once every second,

 

 

1.

Reseat the graphics card.

followed by a two second

 

 

pause. Beeps stop after fifth

 

 

2.

Replace the graphics card.

iteration but LEDs 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

Replace the system board.

times, once every second,

 

(ROM detected failure

 

 

followed by a two second

 

prior to video).

 

 

pause. Beeps stop after fifth

 

 

 

 

iteration but LEDs continue until

 

 

 

 

problem is solved.

 

 

 

 

 

 

 

 

 

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.

Interpreting POST diagnostic front panel LEDs 187

Page 196 Page 198
Page 197
Image 197
HP Promo 800 G1 E1Z80UTABA, Promo 800 G1 E1Z82UTABA, E2A03UT E2A03UT#ABA manual For systems with integrated graphics, replace
Page 196 Page 198

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