HP 800 G1 21.5 Non-Touch manual Install a TXT capable processor

Activity	Beeps	Possible Cause	Recommended Action
Red Power LED flashes nine	9	System powers on but is	1.	Unplug the AC power cord from the
times, once every second,		unable to boot.		computer, wait 30 seconds, then plug the
followed by a two second				power cord back in to the computer.
pause. Beeps stop after fifth			2.	Replace the system board.
iteration but LEDs continue until
problem is solved.			3.	Replace the processor.
Red Power LED flashes eleven	11	The current processor does	1.	Install a TXT capable processor.
times, once every second,		not support a feature	2.	Disable TXT in the Computer Setup (F10)
followed by a two second		previously enabled on this
pause. Beeps stop after fifth		system.		utility.
iteration but LEDs continue until			3.	Reinstall the original processor.
problem is solved.
Red Power LED flashes eleven	12	MXM thermal shutdown.	1.	Clean the MXM graphics card heat sink.
times, once every second,			2.	Replace the MXM graphics card heat sink.
followed by a two second
pause. Beeps stop after fifth			3.	Replace the MXM graphic card.
iteration but LEDs continue until
problem is solved.
System does not power on and	None	System unable to power	Press and hold the power button for less than 4
LEDs are not flashing.		on.	seconds. If the hard drive LED turns white, the
			power button is working correctly. Try the
			following:
			1.	Replace the system board.
			OR
			Press and hold the power button for less than 4
			seconds. If the hard drive LED does not turn on
			white then:
			1.	Check that the unit is plugged into a
				working AC outlet.
			2.	Open rear cover and check that the power
				button cable is properly connected to the
				system board.
			3.	Check to see if the 5V_aux light on the
				system board is turned on. If it is turned on,
				then replace the power button board and
				cable. If the problem persists, replace the
				system board.
			4.	Replace the AC adapter.

Interpreting POST diagnostic front panel LEDs 191