Replacing The Wi-Fi Card - Lenovo 10157/90AK Hardware Maintenance Manual

Step 8. Holding the sides of the microprocessor with your fingers, remove the protective cover
protects the gold contacts on the new microprocessor.
Step 9. Holding the sides of the microprocessor with your fingers, position the microprocessor so that the
notches on the microprocessor are aligned with the tabs in the microprocessor socket.
Important: To avoid damaging the microprocessor contacts, keep the microprocessor completely level
while installing it into the socket.
Step 10. Lower the microprocessor straight down into its socket on the motherboard.
Step 11. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into
position with the small handle.
Step 12. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each
drop of grease should be 0.03ml (3 tick marks on the grease syringe).
Step 13. Reattach the heat-sink, microprocessor fan, and the computer cover.

Replacing the Wi-Fi card

Note: For this procedure, it helps to lay the computer flat.
To replace the Wi-Fi card:
Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to "Left and right view"
and "Rear view" for help with locating the various connectors.
Step 4. Remove the computer cover. Refer to "Removing the computer cover".
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Lenovo H500sHardware Maintenance Manual
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