Dell Inspiron 1520 (Mid 2007) - Manual (Page 179)

Adding and Replacing Parts
179
4 Release the FCM by pushing the metal securing brackets away from the
card until the card pops up slightly.
5 Remove the FCM.
Replacing the FCM
NOTICE:
Install the FCM in the WWAN or WPAN slot. Do not install an FCM in the
WLAN card slot. Doing so may cause damage to your computer.
1 Insert the
FCM connector into the system board connector at a 45-degree
angle
2 Press the other end of the
FCM down into the securing tabs until the card
clicks into place.
1 metal securing tabs (2) 2 FCM
1
2