HP Compaq dc7100 DT Reference Manual page 263

Solving Hardware Installation Problems (Continued)
Problem
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.
Power LED flashes Red six
times, once every second,
followed by a two second
pause, and the computer
beeps six times. Beeps
continue for five iterations
after which the LED flashes
will continue until the
problem is resolved.
Power LED flashes Red ten
times, once every second,
followed by a two second
pause, and the computer
beeps ten times. Beeps
continue for five iterations
after which the LED flashes
will continue until the
problem is resolved
Service Reference Guide, dc7100
Cause
Memory is installed
incorrectly or is bad.
Video card is not seated
properly or is bad, or
system board is bad.
Bad option card.
361288-003
Solution
1. Reseat DIMMs.
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.
For systems with a graphics card:
1. Reseat the graphics card. Power
on the system.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated
graphics, replace the system board.
1. Check each option card by
removing the cards one at time
(if multiple cards), then power
on the system to see if fault goes
away.
2. Once bad card is identified,
remove and replace bad option
card.
3. Replace the system board.
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