Lenovo B71-80 Hardware Maintenance Manual
50
1090 Fan assembly and Heat Sink assembly
For access, remove these FRUs in order:
• “1010 Hard disk drive (HDD)/Memory/Mini PCI Express Card slot
• “1020 Hard disk drive” on page 35
• “1030 DIMM” on page 37
• “1040 PCI Express Mini Card for wireless LAN/WAN” on page 38
• “1050 Keyboard” on page 40
• “1060 Optical drive” on page 42
• “1070 Keyboard bezel” on page 43
• “1080 System board” on page 46
Figure 9. Removal steps of fan assembly and heat sink assembly
Unplug the fan connector in the direction shown by arrow
and loosen screws
to lift the fan assembly.
When installing:
Make sure that the fan connector is attached firmly to the
system board.
Step Screw (quantity)
Color
Torque
PN
M2.0 × 3 mm, Phillips-head,
nylok-coated (7)
Black
1.85±0.15 kgfcm
90001118
a
b
b
b
b
b
b
b
b
a
b
