DFI P5XV3 User Manual page 19

Installing a SIM Module
A SIM module simply snaps into a socket on the system board.
Pin 1 of the SIM module must correspond with Pin 1 of the
socket.
1. Position the SIMM above the socket with the "notch" in the
module aligned with the "key" on the socket.
2. Seat the module at a 45° angle into the bank. Make sure it is
completely seated. Tilt the module upright until it locks in place
in the socket.
Hardware Installation
notch
key
2
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