Lenovo ThinkPad L412 Hardware Maintenance Manual page 132

Table 31. Location of major sensitive components on the system board in ThinkPad L412 and
L512
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ThinkPad SL410, L410, L412, SL510, L510, and L512 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
Accelerometer chip for the HDD Active Protection System
b
MCP (Multi Chip Package) processor
c
Video chip (only for discrete models)
d
PCH (Platform Controller Hub)
For ThinkPad L412 integrated models (top side):
For ThinkPad L412 integrated models (bottom side):
a
b
d
TM