Getting Started Guide

Getting Started
Diagnostic Front Panel Lights (LEDs) and Audible Codes
Continued
Activity Beeps Possible Cause Recommended Action
Red Power LED
flashes once every
two seconds.
None Power failure (power
supply is overloaded).
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.
3. 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.
4. Replace the power supply.
5. Replace the system board.
Red Power LED
flashes five times,
once every
second, followed
by a two second
pause.
5 Pre-video memory
error
1. Reseat DIMMs. Power on the
system.
2. Replace DIMMs one at a time to
isolate faulty module.
3. Replace third-party memory with
HP memory.
4. Replace the system board.
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