HP dx2200 - Microtower PC Service & Reference Manual page 84

POST Error Messages
POST Diagnostic Front Panel LEDs and Audible Codes
Activity
Green Power LED
On.
Green Power LED
flashes every two
seconds.
Power LED flashes
every 4 seconds.
This continues until
the issue has been
resolved.
Power LED flashes
five times, once
every second,
followed by a two
second pause.
LEDs continue until
problem is solved.
C–6
Beeps Possible Cause
None Computer on.
None Computer in
Suspend to RAM
mode (some
models only) or
normal Suspend
mode.
None Processor thermal
protection
activated:
A fan may be
blocked or not
turning.
OR
The heatsink-fan
assembly is not
properly attached
to the processor.
None Pre-video memory
error.
415606-001
Recommended Action
None
None required. Press any key or move the
mouse to wake the computer.
Ensure that the computer air vents are not
blocked and the processor cooling fan is
running.
Open hood, press power button, and see
if the processor fan spins. If the processor
fan is not spinning, make sure the fan's
cable is plugged onto the system board
header.
If fan is plugged in but is not spinning,
then replace processor fan.
Reseat processor heatsink and verify that
the fan assembly is properly attached.
Contact an authorized reseller or service
provider.
Reseat DIMMs. Power on the system.
Replace DIMMs one at a time to isolate
the faulty module.
Replace third-party memory with HP
memory.
Replace the system board.
Service Reference Guide, dx2200 MT