Lenovo ThinkCentre M79 Hardware Maintenance Manual page 152

2. Remove the two screws that secure the Wi-Fi card module to the Wi-Fi adapter card.
Figure 67. Removing the screws that secure the Wi-Fi card module
3. Pull the Wi-Fi card module out of the mini PCI Express slot to remove it from the Wi-Fi adapter card.
Figure 68. Removing the Wi-Fi card module
Installing the Wi-Fi units
To install the Wi-Fi units, do the following:
144
ThinkCentre M79 Hardware Maintenance Manual