Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause

Solution

 

 

 

Memory is installed incorrectly or is bad.

1.

Reseat DIMMs. Power on the system.

 

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.

 

 

 

Solving CD-ROM and DVD problems

If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table or to the documentation that came with the optional device.

System will not boot from CD-ROM or DVD drive.

Cause

Solution

 

 

The device is attached to a SATA port that has been hidden in the

Run the Computer Setup utility and ensure Device Available is

Computer Setup utility.

selected for the device's SATA port in Security > Device Security.

 

 

Removable Media Boot is disabled in the Computer Setup utility.

Run the Computer Setup utility and enable booting to removable

 

media in Storage > Storage Options. Ensure CD-ROM is enabled

 

in Storage > Boot Order.

 

 

Network Boot is enabled in Computer Setup.

Run the Computer Setup utility and disable Network Boot in

 

Security > Network Boot.

 

 

Non-bootable CD in drive.

Try a bootable CD in the drive.

 

 

Boot order not correct.

Run the Computer Setup utility and change boot sequence in

 

Storage > Boot Order.

 

 

Drive not found (identified).

 

 

 

Cause

Solution

 

 

Cable could be loose.

Check cable connections.

 

 

The system may not have automatically recognized a newly

See reconfiguration directions in the Solving Hardware

installed device.

Installation Problems on page 187 section. If the system still does

 

not recognize the new device, check to see if the device is listed

 

within Computer Setup. If it is listed, the probable cause is a

 

driver problem. If it is not listed, the probable cause is a hardware

 

problem.

 

If this is a newly installed drive, run the Computer Setup utility

 

and try adding a POST delay under Advanced > Power-On

 

Options.

 

 

The device is attached to a SATA port that has been hidden in

Run the Computer Setup utility and ensure Device Available is

Computer Setup.

selected for the device's SATA port in Security > Device Security.

 

 

Drive responds slowly immediately after power-up.

Run Computer Setup and increase the POST Delay in Advanced >

 

Power-On Options.

 

 

194 Chapter 8 Troubleshooting without diagnostics