Acer A315-53G Service Manual page 220

Attach the six (6) screws (Discrete type) or the four (4) screws (UMA type) to secure the
2.
thermal module to the mainboard.
NOTE: Screw torque force = 1.8~2.2kgf.cm
Install the fan module (see
3.
5-80
Figure 5-124. Securing the Screws (Discrete)
Figure 5-125. Securing the Screws (UMA)
Fan Module Installation on page 5-58).
Service and Maintenance