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Table 1. Numeric error codes (continued)
Symptom or error FRU or action, in sequence
1804
Unauthorized WAN card is plugged
in—Power off and remove the WAN card.
1. Remove the WAN card that you
installed.
2. System board.
1805
Unauthorized Wireless USB card is plugged
in—Power off and remove the Wireless USB
card.
1. Remove the Wireless USB card that you
installed.
2. System board.
1820
More than one external fingerprint reader is
attached. Power off and remove all but the
reader that you set up within your main
operating system.
Remove all but the reader that you set up
for the authentication.
1830
Invalid memory configuration—Power off
and install a memory module to Slot-0 or
the lower slot.
Install DIMM in Slot-0, but not in Slot-1.
Note: For the construction of the DIMM
slot, see “1050 DIMM” on page 72.
2000
Hard Drive Active Protection sensor
diagnostics failed.Press <Esc> to
continue.Press <F1> to enter SETUP
1. Undock docking station or port
replicator if it is attached to the
ThinkPad computer.
2. Place the ThinkPad computer on a
horizontal surface. Do not apply any
physical shock to the computer.
3. Run Diagnostics --> ThinkPad Devices
--> HDD Active Protection Test.
2010
Warning: Your internal hard disk drive
(HDD) may not function correctly on this
system. Ensure that your HDD is supported
on this system and that the latest HDD
firmware is installed.
Inform the following information to the
customer: If in the primary bay the customer
is using a non-IBM or non-Lenovo hard disk
drive (HDD), or an old generation IBM
HDD which is not supported by this system,
with the risk in mind, the customer can still
use it by pressing ESC. If in the primary
drive bay the customer is using a supported
IBM/Lenovo HDD with an old firmware,
the customer needs to update its firmware to
the latest. The latest version is available at
http://www.lenovo.com/support
2100
Initialization error on HDD0 (Main hard
disk drive)
1. Reseat the hard disk drive.
2. Main hard disk drive.
3. System board.
2102
Initialization error on HDD1 (Ultrabay hard
disk drive)
1. Reseat the hard disk drive.
2. Ultrabay
™
hard disk drive.
3. System board.
2110
Read error on HDD0 (Main hard disk drive)
1. Reseat the hard disk drive.
2. Main hard disk drive.
3. System board.
2112
Read error on HDD1 (Ultrabay hard disk
drive)
1. Reseat the hard disk drive.
2. Ultrabay hard disk drive.
3. System board.
42 ThinkPad T400 and R400Hardware Maintenance Manual