ADLINK NuPRO-A331 - Manual (Page 45)

Getting Started 31
NuPRO-A331
5. Hold the CPU using thumb and forefinger as shown.
Position the CPU over the socket, matching the notches
on the sides of the CPU with the alignment keys on the
socket (A). The golden triangle on the CPU must be
positioned at the corner of the socket with the Pin 1 indi-
cator as shown (B).
6. Carefully place the CPU into the socket vertically. The
socket has cutouts for your fingers to fit into.
WARNING:
The CPU fits into the socket in only one orientation. DO NOT
force it into the socket to avoid causing damage.
A B
Cutouts