Lenovo ThinkCentre M70a Hardware Maintenance Manual page 114

Replacement procedure
1. Remove the computer stand. See "Computer stand" on page 61.
2. Remove the rear cover. See "Rear cover" on page 65.
3. Remove the optical drive. See "Optical drive" on page 66.
4. Remove the optical drive holder. See "Optical drive holder" on page 69.
5. Remove the system board shield. See "System board shield" on page 71.
6. Remove the VESA mount bracket cover. See "VESA mount bracket cover" on page 74.
7. Remove the VESA mount bracket. See "VESA mount bracket" on page 76.
8. Depending on your computer model, refer to one of the following to replace the Wi-Fi card.
• M70a
Figure 99. Removing the Wi-Fi card shield
Figure 100. Disconnecting the Wi-Fi antenna cables
Figure 101. Removing the Wi-Fi card
Figure 102. Installing the Wi-Fi card
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M70a and M90a Hardware Maintenance Manual