Lenovo ThinkPad S430 Maintenance Manual page 91

Removal steps of thermal fan assembly
When installing: Ensure that the connector is attached firmly.
Remove the screws 2 in ascending alphabetical order as illustrated.
Step Screw (quantity)
2
M2 × 4 mm, wafer-head, nylon-coated (6)
When installing: Attach the thermal fan assembly connector to the system board and fasten the screws in
descending alphabetical order as illustrated above.
Removal steps of system board
Attention: The following components soldered on the system board are extremely sensitive. When you
service the system board, avoid any kind of rough handling.
a
Microprocessor
b Platform Controller Hub (PCH)
c Graphic Processing Unit (GPU)
Note: The GPU is only available for models that have a discrete graphics card.
Torque
Color
Black 0.181 Nm
(1.85 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
85