Lenovo IdeaPad U310 Touch Hardware Maintenance Manual page 59

Lenovo IdeaPad U310/U410 U310/U410 Touch
Figure 6. Removal steps of fan assembly and heat sink assembly (continued)
U310/U310 Touch: Remove four screws
U410/U410 Touch: Remove six screws
Step Screw (quantity)
b M2.5 × 3.5 mm, flat-head, nylok-coated
(1) (U310/U310 Touch)
M2.5 × 4.0 mm, flat-head, nylok-coated
(1) (U410/U410 Touch)
b c
and screw .
b
c
b
b
b
b c
and screw .
b
b
b
b
b
b
Color
Silver
Silver
c
Torque
2.5 kgfcm
2.5 kgfcm
55