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Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1110 Fan assembly and Heat Sink assembly (U400)
For access, remove these FRUs in order:
• “1010 Base cover (U400)” on page 74
• “1020 Battery pack (U400)” on page 76
• “1030 Hard disk drive (U400)” on page 77
• “1040 PCI Express Mini Card for wireless LAN (U400)” on page 78
• “1050 System board (U400)” on page 80
Figure 11. Removal steps of fan assembly and heat sink assembly
Detach the fan connector in the direction shown by arrow
1
and loosen four
screws
2
.
1
2 2 2 2
When installing: Make sure that the fan connector is attached firmly to the
system board.