Replacing The Palm Rest - Lenovo ThinkPad L420 User Manual

8. To lock the card holder, slide it as shown in the drawing.
9. Reinstall the slot cover.
10. Reinstall the battery and turn the computer over again. Then reconnect the ac power adapter and
the cables.

Replacing the palm rest

Before you start, print these instructions.
To remove some of the PCI Express Cards, you may need to remove the palm rest first. Read the following
prerequisites and then the instruction.
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.
Removing the palm rest
To remove the palm rest, do the following:
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User Guide