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 Processor Problems

If you encounter processor problems, common causes and solutions are listed in the following table.

Table 7-13Solving Processor Problems

Poor performance is experienced.

Cause

Solution

 

 

 

Processor is hot.

1.

Make sure the airflow to the computer is not blocked.

 

2.

Make sure the fans are connected and working properly

 

 

(some fans only operate when needed).

 

3.

Make sure the processor heat sink is installed properly.

 

Power LED flashes Red three times, once every second, followed by a two second pause.

 

 

Cause

Solution

Processor is not seated properly or not installed.

1.Check to see that the processor is present.

2.Reseat the processor.

Power LED flashes Red eleven times, once every second, followed by a two second pause.

Cause

Solution

The current processor does not support a feature previously enabled on this system.

1.Install a TXT (Trusted Execution Technology) capable processor.

2.Disable TXT in the Computer Setup (F10) utility.

3.Reinstall the original processor.

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.

88 Chapter 7 Troubleshooting Without Diagnostics