1200 System Board And Base Cover - IBM ThinkPad T40 series Hardware Maintenance Manual

Removing and replacing a FRU

1200 System board and base cover

For access, remove these FRUs, in order:
v "1010 Battery pack" on page 68
v "1020 Ultrabay Slim device" on page 70
v "1030 Hard disk drive" on page 71
v "1040 DIMM (optional)" on page 73
v "1050 Keyboard" on page 75
v "1060 DIMM (standard)" on page 79
v "1070 Modem daughter card (MDC)" on page 80
v "1080 Bluetooth/Modem daughter card (BMDC)" on
page 82
v "1090 Palm rest" on page 84
v "1100 Mini PCI adapter" on page 86
v "1110 Fan assembly" on page 89
v "1120 Backup battery" on page 90
v "1130 Speaker assembly" on page 92
v "1140 PC Card slot assembly" on page 94
v "1150 Keyboard bezel" on page 96
v "1160 LCD assembly" on page 98
v "1170 CPU" on page 103
v "1180 Ultrabay Slim guide rail assembly" on page 104
v "1190 VGA and Ultrabay Slim device eject button cable"
on page 106
Important notice for handling the system board in
ThinkPad T40 series:
There are two types of system board FRU for the
ThinkPad T40 series, as follows:
v System board with IBM security chip (bottom view)
Note: The security chip a is embedded on the
underside of the system board.
108
MT 2373/2374/2375/2376/2378/2379
a