HP dc5700 - Manual (Page 169)

Service Reference Guide, dc5700 437804-001 D–5
Troubleshooting Without Diagnostics
Poor performance is
experienced.
(continued)
Cause unknown. Restart the computer.
Computer powered off
automatically and the
Power LED flashes Red
two times, once every
second, followed by a
two second pause, and
the computer beeps two
times. Beeps continue
for five iterations after
which the LED flashes
will continue until the
problem is resolved.
Processor thermal
protection activated:
A fan may be blocked or
not turning.
OR
The heatsink is not
properly attached to the
processor.
1. Ensure computer air vents are not
blocked and the cooling fan is
running.
2. Open hood, press power button,
and see if the processor fan
spins. If not spinning, make sure
the fan's cable is plugged onto
the system board header.
3. Replace the processor
heatsink-fan assembly.
Solving Minor Problems (Continued)
Problem Cause Possible Solution