Lenovo M50-70 Hardware Maintenance Manual page 61

Figure 13. Removal steps of system board and touchpad module (continued)
Disconnect the connectors in the directions shown by arrows 1 and 2.
Remove the screws 3.
Step Screw (quantity)
M2.0 × 3.0 mm, flat-head, nylok-coated (2)
3
M/B to Up
When installing: Make sure that the connectors are attached firmly.
Remove the system board in the direction shown by arrow 4.
Lenovo M50-70/M50-80
Color Torque
Black 1.8±0.2 kgf*cm
57