HP xw4100 manual Possible Recommended Activity Beeps Cause Action

Troubleshooting

	Possible	Recommended
Activity	Beeps Cause	Action

NOTE: For the following LED activity and beeps, the beeps will be heard through the on–board piezo speaker and not the chassis speaker. Blinks and beeps will be repeated for 5 cycles, after that, only the blinks will continue to repeat.

Red Power LED	4	Power failure	1.	Open the hood and
blinks four times		(power supply		ensure the 4-wire
once every second,		is overloaded)		power supply cable is
followed by a				seated into the
two-second pause.				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.

4–20 www.hp.com Getting Started Guide