Lenovo ThinkPad E30 Hardware Maintenance Manual page 99

Table 20. Removal steps of system board and fan assembly
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.
For cULV models:
a
Accelerometer chip for the HDD Active Protection System
b
CPU
c
GMCH (Graphics Memory Controller Hub)
d
ICH (I/O Controller Hub)
™
a
b
c
d
Removing and replacing a FRU
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