HP Dc7100 Troubleshooting Guide - Page 54

Solving Processor Problems

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Troubleshooting Without Diagnostics Solving Memory Problems (Continued) Problem Cause 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. Solution 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. Solving Processor Problems Problem Cause Poor performance is experienced. Processor is hot. Power LED flashes Red three times, once every second, followed by a two second pause. Processor is not seated properly or not installed. Solution 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. 1. Check to see that the processor is present. 2. Reseat the processor. 2-38 www.hp.com Troubleshooting Guide

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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.
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.