Lenovo ThinkPad T400s 2823 Hardware Maintenance Manual page 126

Table 26. Removal steps of system board, fan assembly, and 34-mm ExpressCard slot frame
118
ThinkPad T400s 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
ICH (I/O Controller Hub)
b
CPU
c
GMCH (Graphics Memory Controller Hub)
d
Accelerometer chip for the HDD Active Protection System
d
a
b
c
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