Lenovo ThinkPad T470 Hardware Maintenance Manual page 93

The 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 Graphics processing unit (GPU)
b Central processing unit (CPU)
c Embedded controller
d Accelerometer chip for the hard disk drive Active Protection System
Note: The graphics chip a is only for discrete-graphics models.
TM
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Chapter 9 Removing or replacing a FRU
87