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 ExpressModule)
d Accelerometer chip for the HDD Active Protection System™
e ICH (I/O Controller Hub)
Upper side of the system board:
a
d
b c
Bottom side of the system board:
e
114 ThinkPad W700 and W700ds Hardware Maintenance Manual