Lenovo ThinkPad R400 7439 Hardware Maintenance Manual page 120

Table 30. Removal steps of system board and PC Card/Express Card slots (or
ExpressCard/Smart Card slots or ExpressCard/7-in-1 Media Card Reader slots) bezel
assembly
112
ThinkPad T400 and R400 (14.1-inch widescreen) Hardware Maintenance Manual
Following components soldered on the top side of the system board are
extremely sensitive. When you service the system board, avoid any kind of
rough handling.
a
CPU
b
Video chip
c
MCH (Memory Controller Hub)
d
ICH (I/O Controller Hub)
e
Accelerometer chip for the HDD Active Protection System
Step Screw (quantity)
M2 × 2.7 mm, flat-head, nylon-coated (2)
1
b
a
c
d
e
1
1
™
Color Torque
Black 0.167 Nm
(1.7 kgfcm)