Lenovo ThinkPad X301 Hardware Maintenance Manual page 105

Table 28. Removal steps of system board, fan assembly, and base cover
assembly (continued)
Step Screw (quantity)
M2 × 4 mm, bind-head, nylon-coated (3)
4
Turn the system board over, and then disconnect the fan assembly from the
system board.
When installing: Make sure that the fan connector is attached to the system
board firmly.
4
4
4
Color Torque
Black 0.167 Nm
(1.7 kgfcm)
6
5
ThinkPad X301
97