Lenovo E520 Prerequisites for the procedure DANGER, Danger, Replacing a PCI Express Mini Card

10.Reinstall the battery. For more information about how to reinstall the battery, refer to “Replacing the battery” on page 77.

11.Turn the computer over again. Connect the ac power adapter and cables to the computer; then turn it on.

Installing and replacing a PCI Express Mini Card for wireless LAN/WiMAX connection

Before you start, print these instructions.

Your computer has a PCI Express Mini Card slot for connection to a wireless LAN/WiMAX. To replace the PCI Express Mini Card with a new one, read the following prerequisites.

Prerequisites for the procedure

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 a PCI Express Mini Card

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait for a few minutes, till the inside of the computer cools, before you start the following procedures.

2.Close the computer display, and turn the computer over.

3.Remove the battery. For more information about how to remove the battery, refer to “Replacing the battery” on page 77.

4. Loosen the screws

1 , and then remove the cover

2.

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