Foxconn H77MXV Series User Manual page 19

HARDWARE INSTALLATION
12
Step 1:
Spread the clips at both ends of the memory socket. Place
the memory module onto the socket, then put your fingers
on top edge of the module, and push it down firmly and
seat it vertically into the memory socket.
Step 2:
The clips at both ends of the socket will snap into place
when the memory module is securely inserted.