Lenovo ThinkCentre M83z Maintenance Manual page 116

6. Disconnect the two Wi-Fi antenna cables from the Wi-Fi card, and then remove the screw that secures
the Wi-Fi card so that the Wi-Fi card pops up.
Figure 47. Disconnecting cables and releasing the Wi-Fi card
7. Remove the Wi-Fi card from the mini PCI Express card slot as shown.
Figure 48. Removing the Wi-Fi card
110
ThinkCentre M83z Hardware Maintenance Manual