Lenovo Ideapad 300-14IBR Hardware Maintenance Manual page 59

Figure 11. Removal steps of fan assembly and heat sink assembly (continued)
Remove the screws 4. Then lift the heat sink assembly in the direction shown
by arrow 5.
Step Screw (quantity)
M2 × 3 mm, Phillips-head, nylok-coated (3)
4
thermal+MB
When installing: Make sure that the connector is attached firmly.
When installing:
Before you attach the fan assembly to the computer, apply thermal grease,
at an amount of 0.2 grams, to the part shown in the figure above. Either
too much or too less grease application can cause a thermal problem due to
imperfect contact with a component.
Lenovo Ideapad 300-14IBR/Ideapad 300-15IBR
Color Torque
Black 1.5 ~ 2.0 kgf*cm
a
55