Diagnostic Front Panel LEDs and Audible Codes
Activity
Red Power LED
lights up.
Red Power LED
flashes four
times, once every
second, followed
by a two-second
pause.
Getting Started
Possible
Beeps
Cause
None
Processor not
installed (not an
indicator of bad
processor).
None
Power failure
(power supply is
overloaded).
www.hp.com
Getting Started
Recommended
Action
1. Check to see that
the processor is
present.
2. Reseat the
processor.
1. Check that the
voltage selector,
located on the rear
of the power supply,
is set to the
appropriate
voltage. Proper
voltage setting
depends on your
region.
2. Open the hood and
ensure the 4-wire
power supply cable
is seated into the
connector on the
system board.
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