IBM Thinkpad T40 Manual

1060 DIMM (standard)
For access, remove these FRUs in order:
v“1010 Battery pack”on page 66
v“1050 Keyboard”on page 73
1
1
2
When installing:Insert the notched end of the DIMM into
the socket. Press the DIMM firmly, and
pivot it until it snaps into the place.
Make sure that it is firmly fixed in the
slot and does not move easily.
Removing and replacing a FRU
ThinkPad T40 Series77 

1070 Modem daughter card (MDC)
For access, remove these FRUs in order:
v“1010 Battery pack”on page 66
v“1050 Keyboard”on page 73
2
11
Step Screw (quantity) Color Torque

1M2×10 mm, flat-head,
nylon-coated (2)Black 0.245 Nm
(2.5 kgfcm)
In step
2, remove the card by pulling the tab with your
fingers in the direction of the arrow.
(continued)
Removing and replacing a FRU
78ThinkPad T40 Series (MT 2373, 2374, 2375, 2376) 

Turn the card over
3, and detach the modem connector

4.
3
4
When installing:Make sure that connector
4and the
connector on the underside of the card
are firmly attached.
Removing and replacing a FRU
ThinkPad T40 Series79 

1080 Bluetooth/Modem daughter card
(BMDC)
For access, remove these FRUs in order:
v“1010 Battery pack”on page 66
v“1050 Keyboard”on page 73
2
11
Step Screw (quantity) Color Torque

1M2×10 mm, flat-head,
nylon-coated (2)Black 0.245 Nm
(2.5 kgfcm)
In step
2, remove the card by pulling the tab with your
fingers in the direction of the arrow.
(continued)
Removing and replacing a FRU
80ThinkPad T40 Series (MT 2373, 2374, 2375, 2376) 

Turn the card over
3, and detach the modem connector

4and the Bluetooth antenna jack, which has a tab
marked″BT″
5.
Note:When unplugging the Bluetooth antenna jack, do
not pull the cable; it might snap. Unplug the jack by
pulling the tab with your fingers.
3
4
5
When installing:Make sure that connector
4, the jack

5, and the connector on the underside
of the card are firmly attached.
Removing and replacing a FRU
ThinkPad T40 Series81 

1090 Palm rest
For access, remove these FRUs in order:
v“1010 Battery pack”on page 66
v“1030 Hard-disk drive”on page 69
v“1050 Keyboard”on page 73
3
3
11
11
2
Step Icon Screw
capScrew (quantity) Color Torque

1
1M2×3 mm,
small-head,
nylon-coated (4)Silver 0.245 Nm
(2.5 kgfcm)

2
2M2×5 mm,
flat-head,
nylon-coated (1)Black 0.245 Nm
(2.5 kgfcm)

3Models with a 802.11b wireless LAN Mini PCI adapter
4—M2×14 mm,
bind-head,
nylon-coated (3)Black 0.245 Nm
(2.5 kgfcm)
Models with a 802.11a/b wireless LAN Mini...

For a model with a touch pad, detach the touch pad
connector by pulling the tab with your fingers in the
direction of arrow
4. Then remove the palm rest in the
direction of arrow
5. For other models, skip step
4.
4
5
When installing:On a model with a touch pad, make
sure that connector
4is firmly
attached.
Removing and replacing a FRU
ThinkPad T40 Series83 

1100 Mini PCI adapter
For access, remove these FRUs in order:
v“1010 Battery pack”on page 66
v“1030 Hard-disk drive”on page 69
v“1050 Keyboard”on page 73
v“1090 Palm rest”on page 82
Note:When unplugging the antenna jack, do not pull the
cable; it might snap. Unplug the jack by pulling the
tab with your fingers.
1
2
3
3
4
Removing and replacing a FRU
84ThinkPad T40 Series (MT 2373, 2374, 2375, 2376) 

When installing:Plug in the wireless antenna cable as
follows:
Intel
®PRO/Wireless LAN 2100 3B Mini PCI Adapter
Plug the gray antenna cable with the tab markedMAIN
into jackM, and the black antenna cable with the tab
markedAUXinto jackA.
MAINAUX
Cisco Aironet Wireless 802.11b
Plug the gray antenna cable with the tab markedMAIN
into jackM, and the black antenna cable with the tab
markedAUXinto jackA.
MAIN
MAINAUX
AUX
Removing and replacing a FRU
ThinkPad T40 Series85 

IBM Dual-Band 11a/b Wi-Fi Wireless Mini PCI Adapter
Plug the gray antenna cable with the tab markedMAIN
into jackMAIN, and the black antenna cable with the tab
markedAUXinto jackAUX.
MAINAUX
Insert the notched end of the card into the socket, and
then press the card firmly. Pivot the card until it snaps into
place. Make sure that it is firmly fixed in the slot and does
not move easily.
Removing and replacing a FRU
86ThinkPad T40 Series (MT 2373, 2374, 2375, 2376)