Lenovo C50-30 Lenovo C50-30 All-In-One Computer Hardware Maintenance Manual - Page 41
Replacing the heat-sink, Step 9. Remove the EMI cover. Refer to Removing the EMI cover.
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Step 6. Remove the optical drive. Refer to "Replacing the optical drive". Step 7. Remove the stand holder. Refer to "Removing the stand holder". Step 8. Remove the middle cover. Refer to "Removing the middle cover". Step 9. Remove the EMI cover. Refer to "Removing the EMI cover". Step 10. Disconnect the antenna cables from the Wi-Fi card. Step 11. Remove the screw that secures the Wi-Fi card to the motherboard. Step 12. Lift up the Wi-Fi card to remove it from the socket. Step 13. To install the new Wi-Fi card: a. Insert the notched end of the Wi-Fi card into the card port on the motherboard. b. Secure new the Wi-Fi card to the motherboard with the screw. c. Connect the antenna cables to the new Wi-Fi card. Step 14. Reattach the EMI cover, middle cover, optical drive, stand holder, foot cover 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: 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. Chapter 7. Replacing hardware 35
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