Lenovo G40-45 Notebook Lenovo User Manual download pdf (Page 59)

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

Step Screw (quantity) Color Torque

M2 × 3.5 mm, at-head, nylok-coated (7)

(G40-30/G40-45/G40-70)

CPU BKT to MB,

GPU BKT to MB

Black 1.5 ~ 2.0 kgf*cm

M2 × 3.5 mm, at-head, nylok-coated (6)

(G40-70m/Z40-70/Z40-75) CPU BKT to MB, GPU

BKT to MB

Black 1.5 ~ 2.0 kgf*cm

Lift the heat sink assembly in the direction shown by arrow

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 90 91

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Lenovo G40-45 Notebook Lenovo User Manual Page 59