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Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1120 DIMM (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 12. Removal steps of DIMM
Release the two latches on both edges of the socket at the same time in the
direction shown by arrows
1
, and then unplug the DIMM in the direction shown
by arrow
2
.
1
2
1
When installing: Insert the notched end of the DIMM into the socket. Push the
DIMM rmly, and pivot it until it snaps into the place. Make sure that it is rmly
xed in the slot and difcult to be moved.