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

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 (such as hard,

 

 

 

diskette, or optical drives, and expansion

 

 

 

cards). 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

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

Pre-video memory error.

CAUTION: To avoid damage to the DIMMs or the system board, you must unplug the workstation 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 times, 6 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

System board failure (ROM Replace the system board.

times, once every second,

 

detected failure prior to

followed by a two second

 

video).

pause. 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 1.

Reflash the system ROM with the latest BIOS

checksum.

image. See the “Boot Block Emergency

 

Recovery Mode” section 3.4.

2.

Replace the system board.

116 Appendix C POST error messages

ENWW