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 Locating connectors,
controls and components to locate the various connectors.
Step 4.
Remove the stand base. Refer to Removing the stand base.
Step 5.
Remove the rear cover. Refer to Removing the rear covers.
Step 6.
Remove the graphic card. Refer to Replacing the graphic card.
Step 7.
Remove the hard disk drive. Refer to Replacing the hard disk drive.
Step 8.
Remove the optical drive. Refer to Replacing the optical drive.
Step 9.
Remove the middle cover. Refer to Removing the middle cover.
Step 10. Remove the stand holder. Refer to Removing the stand holder.
Step 11. Remove the EMI cover. Refer to Removing the EMI cover.
Step 12. Disconnect the antenna cables from the Wi-Fi card.
1
Step 13. Remove the screw that secures the Wi-Fi card to the motherboard.
2
Step 14. Pull the Wi-Fi card out of the slot.
Step 15. To install the new Wi-Fi card:
a.
Insert the new Wi-Fi card into the Wi-Fi card slot.
b.
Secure new the Wi-Fi card to the motherboard with one screw.
c.
Connect the antenna cables to the new Wi-Fi card.
Step 16. Reattach the EMI cover, stand holder, middle cover, optical drive, hard disk drive, graphic card,
rear covers and stand base.
Replacing the heat-sink
Note:
Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note:
It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the heat-sink:
.
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