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D–28 433611-001 Service Reference Guide, dx7300
Troubleshooting Without Diagnostics
Solving Processor Problems
.
Power LED flashes Red five
times, once every second,
followed by a two second
pause, and the computer
beeps five times. Beeps
continue for five iterations
after which the LED flashes
will continue until the
problem is resolved.
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, and the
computer beeps three
times. Beeps continue for
five iterations after which
the LED flashes will
continue until the problem
is resolved.
Processor is not seated
properly or not
installed.
1. Check to see that the processor
is present.
2. Reseat the processor.