1120 Heat Sink Assembly - Lenovo G40-30 Hardware Maintenance Manual

Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75

1120 Heat sink assembly

For access, remove these FRUs in order:
• "1010 Battery pack" on page 33
• "1020 Base cover" on page 34
• "1030 Optical drive" on page 36
• "1040 Hard disk drive" on page 37
• "1050 PCI Express Mini Card for wireless LAN" on page 39
• "1070 Fan assembly" on page 42
• "1080 Keyboard" on page 44
• "1090 Keyboard bezel" on page 47
• "1100 USB&audio board" on page 50
• "1110 System board" on page 52
Figure 12. Removal steps of heat sink assembly
Remove the screws 1.
Step Screw (quantity)
M2 × 3.5 mm, flat-head, nylok-coated (7)
1
(G40-30/G40-45/G40-70) CPU BKT to MB,
GPU BKT to MB
M2 × 3.5 mm, flat-head, nylok-coated (6)
1
(G40-70m/Z40-70/Z40-75) CPU BKT to MB, GPU
BKT to MB
Lift the heat sink assembly in the direction shown by arrow 2.
Color Torque
Black 1.5 ~ 2.0 kgf*cm
Black 1.5 ~ 2.0 kgf*cm
55