The math coprocessor also has a notch in one corner, marked by a dot, as shown below.
notch
Align the notched corner of the coprocessor with the notched corner of its socket. The notched sides must be aligned for the coprocessor to operate properly, so be sure its position is correct before you go to the next step.
5.Gently push the coprocessor into the socket, pressing evenly on all sides, as shown below.
Installing and Removing Options |