Lenovo ThinkPad T420 Hardware Maintenance Manual - Page 119
Graphic Processing Unit GPU Discrete graphics chip, For Switchable Graphics models
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c Platform Controller Hub (PCH) d Graphic Processing Unit (GPU) (Discrete graphics chip) Note: The GPU d is only for models with switchable graphics. Models with integrated graphics do not have a GPU on the system board. For Switchable Graphics models: a d c b For Integrated Graphics models: a c b 1 Chapter 8. Removing and replacing a FRU 113
c
Platform Controller Hub (PCH)
d
Graphic Processing Unit (GPU) (Discrete graphics chip)
Note:
The GPU
d
is only for models with switchable graphics. Models with integrated graphics
do not have a GPU on the system board.
For Switchable Graphics models:
For Integrated Graphics models:
Chapter 8
.
Removing and replacing a FRU
113