Lenovo 6457 - ThinkPad T61 - Core 2 Duo 2.5 GHz Hardware Maintenance Manual page 112

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.
Table 34. Removal steps of system board, PC Card/ExpressCard slots assembly
106
ThinkPad T61 and T61p (15.4-inch widescreen) Hardware Maintenance Manual
a
Accelerometer chip for the HDD Active Protection System
b
Security chip
c
CPU
d
Video chip
e
MCH (Memory Controller Hub)
f
ICH (I/O Controller Hub)
Step Screw (quantity)
M2 × 2.7 mm, flat-head, nylon-coated (2)
1
c
d
f
e
b a
1
1
Color
Black
™
Torque
0.167 Nm
(1.7 kgfcm)