HP DC5000 Front Panel LEDs and Audible Codes, Beeps, Activity, Possible Cause, Recommended Action, Diagnostic Front Panel LEDs and Audible Codes

Troubleshooting Without Diagnostics

Front Panel LEDs and Audible Codes

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This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them.

If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the computer and refer to the following table to determine the front panel LED codes.

Recommended actions in the following table are listed in the order in which they should be performed.

Diagnostic Front Panel LEDs and Audible Codes

Activity	Beeps	Possible Cause	Recommended Action
Green Power	None	Computer on.	None
LED On.
Green Power	None	Computer in	None
LED flashes		Suspend to RAM
every two		mode (select
seconds.		models only) or
		normal Suspend
		mode.
Green Power	None	Computer in	None
LED flashes four		Suspend
times, once per		to Disk or
second.		“Hibernate” mode.
Red Power LED	None	Processor thermal	1.	Ensure that the computer air vents are
flashes two		protection		not blocked and the processor
times, once		activated:		cooling fan is running.
every second,		A fan may be	2.	Open hood, press power button, and
followed by a		blocked or not		see if the processor fan spins. If the
two second		turning.		processor fan is not spinning, make
pause.		OR		sure the fan's cable is plugged onto
		The heatsink/fan		the system board header. Ensure the
				fan is fully/properly seated or
		assembly is not
				installed.
		properly attached
			3. If fan is plugged in and seated
		to the processor.
				properly, but is not spinning, then
				replace processor fan.
			4.	Reseat processor heatsink and verify
				that the fan assembly is properly
				attached.

5. Contact an authorized reseller or service provider.

D–26 360201-002 Service Reference Guide, dc5000