IBM T400S Numeric error codes continued, Unauthorized Wireless USB card is plugged in-Power off

Table 2. Numeric error codes (continued)

Symptom or error	FRU or action, in sequence
02F7	1.	DIMM.
Fail-safe timer NMI failed
	2.	System board.
1801	Shut down the computer and remove it from the
Attached docking station is not supported	docking station.
1802	1.	Remove Mini PCI network card.
Unauthorized network card is plugged in—Turn off and
remove the miniPCI network card.	2.	System board.
1803	1.	Remove the daughter card that you installed.
Unauthorized daughter card is plugged in—Turn off and
remove the daughter card.	2.	System board.
1804	1.	Remove the WAN card that you installed.
Unauthorized WAN card is plugged in—Power off and
remove the WAN card.	2.	System board.
1805	1.	Remove the Wireless USB card that you installed.
Unauthorized Wireless USB card is plugged in—Power off	2.	System board.
and remove the Wireless USB card.
1810	1.	If the Access Predesktop Area has been previously
Hard disk partition layout error.
		disabled, then go to the BIOS Setup Utility by
		pressing F1 to open the BIOS Setup Utility. Select
		Security ➙ Predesktop Area ➙ Access Predesktop
		Area. Set this item to Disabled. Save and exit.
	2.	If the Access Predesktop Area has not been
		previously disabled, press Enter to load Access
		Predesktop Area. Then run RECOVER TO FACTORY
		CONTENTS in Access Predesktop Area.
	3.	If item 2 failed, press F3 in the Welcome screen in
		RECOVER TO FACTORY CONTENTS. Run FDISK,
		and then delete all partitions. Run RECOVER TO
		FACTORY CONTENTS in Access Predesktop Area
		again.
	4.	If item 3 failed, select CD-ROM boot in Startup in
		Access Predesktop Area. Boot from the Recovery
		CD and perform full recovery from it.
	5.	If item 4 failed, replace the hard disk drive.
1820	Remove all but the reader that you set up for the
More than one external fingerprint reader is attached.	authentication.
Power off and remove all but the reader that you set up
within your main operating system.
1830	Install DIMM in Slot-0, but not in Slot-1.
Invalid memory configuration—Power off and install a	Note: For the construction of the DIMM slot, see “1040
memory module to Slot-0 or the lower slot.	DIMM” on page 78.
2000	1.	Undock docking station or port replicator if it is
Hard Drive Active Protection sensor diagnostics
failed.Press <Esc> to continue.Press <F1> to enter		attached to the ThinkPad Notebook.
SETUP	2.	Place the ThinkPad Notebook on a horizontal surface.
		Do not apply any physical shock to the computer.
	3.	Run Diagnostics →ThinkPad Device → HDD Active
		Protection Test.

54Hardware Maintenance Manual