Lenovo X41 manual FRU tests, Following table shows the test for each FRU

Product overview

FRU tests

The following table shows the test for each FRU.

FRU	Applicable test
System board	1.	Diagnostics -->CPU/Coprocessor
	2.	Diagnostics -->Systemboard
	3.	If the docking station or the port replicator is
		attached to the ThinkPad computer, undock
		it. Place the computer on a horizontal
		surface, and run Diagnostics --> ThinkPad
		Devices -->HDD Active Protection Test.
	Note: Do not apply any physical shock to the
	computer while the test is running.
Power	Diagnostics -->ThinkPad Devices -->AC
	Adapter, Battery 1 (Battery 2)
LCD unit	1.	Diagnostics -->Video Adapter
	2.	Interactive Tests -->Video
Modem, MDC	1.	Make sure the modem is set up correctly.
or BMDC	2.	Replace the modem jack and the modem
		card in turn, and run the following test in
		Diagnostics -->Communication:
		a. Conexant Smart Modem Interrupt
		b. Conexant Smart Modem Dialtone
Audio	1.	Interactive Tests -->Internal Speaker
	2.	Diagnostics -->Other Devices -->Analog
		Devices AC97 CODEC Test
Speaker	Interactive Tests -->Internal Speaker
PC Card slots	1.	Diagnostics -->Systemboard -->PCMCIA
	2.	Insert a PC Card Wrap Plug into every PC
		Card Slot, and run Diagnostics -->
		Systemboard -->PCMCIA External Loop
Keyboard	1.	Diagnostics -->Systemboard -->
		Keyboard
	2.	Interactive Tests -->Keyboard
TrackPoint or	If the TrackPoint does not work, check the
pointing device	configuration in the ThinkPad Configuration
	program. If the TrackPoint is disabled, select
	Enable to enable it.
	After you use the TrackPoint, the pointer may
	drift on the screen for a short time. This drift
	can occur when a slight, steady pressure is
	applied to the TrackPointing Stick. This
	symptom is not a hardware problem. If the
	pointer stops after a short time, no service
	action is necessary.
	If enabling the TrackPoint does not correct the
	problem, continue with the following:
	v Interactive Tests -->Mouse

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ThinkPad X41 55