Lenovo V480c Hardware Maintenance Manual page 67

Removal steps of system board
1
Remove the screws .
Step Screw (quantity)
1
M2 × 5 mm, flat-head, nylon-coated (3)
Detach the connectors.
When installing: Ensure that all the connectors are attached firmly.
Color Torque
Black
3.0 kgfcm
.
Chapter 7 Removing or replacing a FRU
61