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Note: If the new PCI Express Mini Card has only two connectors, be sure to attach the gray cable to the
connector marked “MAIN,” and the black cable to the connector marked “AUX.” Put the white cable
in the cable protection tube.
10. Reinstall the keyboard. For more details, refer to Replacing the keyboard.
11. Turn the computer over again. Connect the ac power adapter and cables to the computer.
Installing and replacing the PCI Express Mini Card for wireless WAN
connection
Before you start, print these instructions.
Some ThinkPad models have a PCI Express Mini Card slot for connection to a wireless WAN. To replace the
PCI Express Mini Card with a new one, read the following prerequisites.
Prerequisites for the procedure
When installing or replacing the card, be sure to follow the precautions.
DANGER
During electrical storms, do not connect the cable to or disconnect it from the telephone outlet
on the wall.
DANGER
Electric current from power, telephone, and communication cables is hazardous. To avoid shock
hazard, disconnect the cables before opening the cover of this slot.
Attention: Before you start installing a PCI Express Mini Card, touch a metal table or a grounded metal
object. This action reduces any static electricity from your body. The static electricity could damage the card.
Replacing the PCI Express Mini Card for wireless WAN connection
If a Wireless WAN is available in your computer, to replace the PCI Express Mini Card, do as follows:
1. Enter ThinkPad Setup to stop battery discharge. Refer to Before replacing CRU for detailed instruction.
2. Close the computer display, and turn the computer over.
3. Remove the keyboard. For more details, refer to Replacing the keyboard.
4. If a tool for removing connectors is included in the package with the new card, use it to disconnect the
cables from the card. If no such tool is included, disconnect the cables by picking up the connectors
with your ngers and gently unplugging them.
Chapter 6. Replacing devices 81