Lenovo ThinkPad W520 Hardware Maintenance Manual - Page 83

PCI Express Mini Card for wireless LAN, Notes, When installing

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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 firmly, and pivot it until it snaps into the place. Make sure that it is firmly fixed 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 fingers 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

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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 firmly, and pivot it
until it snaps into the place. Make sure that it is firmly fixed 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 fingers 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