Dell OptiPlex 5070 Micro Service Manual page 32

3. Remove the:
a. Side cover
b. 2.5 inch hard drive assembly
4. To remove the WLAN card:
a. Remove the single (M2X3.5) screw that secures the plastic tab to the WLAN card [1].
b. Remove the plastic tab to access the WLAN antenna cables [2].
c. Disconnect the WLAN antenna cables from the connectors on the WLAN card [3].
d. Lift the WLAN card from the connector on the system board [4].
32 Removing and installing components