Getting Started

26 www.hp.com Getting Started
Getting Started
Red Power LED
flashes four
times, once every
second, followed
by a two second
pause. The beeps
continue for five
iterations, then
stop. The LED
flashes continue
until the problem
is resolved.
✎
Beeps may
not occur
on all
models for
this activity.
4 Power failure
(power supply is
overloaded).
1. Open the hood and
ensure the 4-wire
power supply cable
is seated into the
connector on the
system board.
2. Check if a device is
causing the problem
by removing ALL
attached devices
(such as hard,
diskette, or optical
drives, and
expansion cards).
Power on the system.
If the system enters
the POST, then
power off and
replace one device
at a time and repeat
this procedure until
failure occurs.
Replace the device
that is causing the
failure. Continue
adding devices one
at a time to ensure all
devices are
functioning properly.
3. Replace the power
supply.
4. Replace the system
board.
Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps
Possible
Cause
Recommended
Action