HP Compaq Businessdc7600, Service & Reference Manual

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Service Reference Guide, dc7600 390742-001 D–19
Troubleshooting Without Diagnostics
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.
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.
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. Video card is not seated
properly or is bad, or
system board is bad. 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.
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 Bad option card. 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.
Solving Hardware Installation Problems (Continued)
Problem Cause Solution