HP 402 G1 manual Red Power LED flashes seven, Times, once every second Detected failure prior to

Table 10-2Diagnostic front panel LEDs and audible codes (continued)

Activity	Beeps	Possible Cause	Recommended Action
Red Power LED flashes seven	7	System board failure (ROM	Replace the system board.
times, once every second,		detected failure prior to
followed by a two second pause.		video).
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
Red Power LED flashes eight	8	Invalid ROM based on bad	1.	Reflash the system ROM with the latest BIOS
times, once every second,		checksum.		image. See the “Boot Block Emergency
followed by a two second pause.				Recovery Mode” section of the Desktop
Beeps stop after fifth iteration				Management Guide for more information.
but LEDs continue until problem			2.	Replace the system board.
is solved.
Red Power LED flashes nine	9	System powers on but is	1.	Unplug the AC power cord from the computer,
times, once every second,		unable to boot.		wait 30 seconds, then plug the power cord
followed by a two second pause.				back in to the computer.
Beeps stop after fifth iteration			2.	Replace the system board.
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 pause.		previously enabled on this
				utility.
Beeps stop after fifth iteration		system.
but LEDs continue until problem			3.	Reinstall the original processor.
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 iteration			3.	Replace the MXM graphic card.
but LEDs continue until problem
is solved.
System does not power on and	None	System unable to power on.	Press and hold the power button for less than 4
LEDs are not flashing.			seconds. If the hard drive LED turns green, the
			power button is working correctly. Try the following:
			▲	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 green
			then:
			1.	Check that the unit is plugged into a working
				AC outlet.
			2.	Open access panel 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.

102 Chapter 10 POST Error Messages