Lenovo 4242X04 Laptop User Manual


 
Notes:
For ThinkPad W520, if only one DIMM is used on the computer you are servicing, the card must be
installed in SLOT-0
a , but not in SLOT-2 b .
For ThinkPad W520, if the computer you are servicing is a dual-core processor model, a dummy DIMM
card is preinstalled in SLOT-2 b . Do not replace the dummy DIMM card with a SO-DIMM.
a
b
When installing: Insert the notched end of the DIMM into the socket. Press the DIMM rmly, and pivot it
until it snaps into the place. Make sure that it is rmly xed in the slot and does not move easily.
1080 PCI Express Mini Card for wireless LAN
For access, remove these FRUs in order:
“1010 Battery pack” on page 66
“1030 DIMM slot cover” on page 68
“1060 Keyboard” on page 72
Removal steps of PCI Express Mini Card for wireless LAN
In step 1 , unplug the jacks by using the antenna RF connector removal tool (P/N: 08K7159) or pick the
connectors with your ngers and gently unplug them in direction of the arrow.
Note: Some models might have only two antenna cables in step 1 .
Chapter 9. Removing and replacing a FRU 77