Dell Inspiron GU051 Owner's Manual page 155

4 Disconnect the antenna cables from the
card.
WLAN
2
1
1 antenna cable connectors (2) 2 WLAN card
5 Release the
card by pushing the metal securing tabs toward the
WLAN
back of the computer until the card pops up slightly.
6 Lift the
out of its system board connector.
WLAN card
155
Adding and Replacing Parts