Troubleshooting Guide

2–40 www.hp.com Troubleshooting Guide
Troubleshooting Without Diagnostics
Solving Processor Problems
If you encounter processor problems, common causes and solutions
are listed in the following table.
Insufficient memory error
during operation.
(continued)
You have run out of
memory for the
application.
Check the memory requirements for
the application or add more
memory to the computer.
Power LED flashes Red five
times, once every second,
followed by a two second
pause, and the computer
beeps five times.
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 Memory Problems (Continued)
Problem Cause Solution
Solving Processor Problems
Problem Cause Solution
Poor performance is
experienced.
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
heatsink is installed properly.
Power LED flashes Red
three times, once every
second, followed by a two
second pause.
Processor is not seated
properly or not
installed.
1. Check to see that the processor
is present.
2. Reseat the processor.