Lenovo ThinkPad W700 2752 Hardware Maintenance Manual page 115

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
MCH (Memory Controller Hub)
c
Video sub card (Mobile PCI Express Module)
d
Accelerometer chip for the HDD Active Protection System
e
ICH (I/O Controller Hub)
Upper side of the system board:
Bottom side of the system board:
a b
d
e
™
c
107
ThinkPad W700