Align the notched comer of the coprocessor with the notched comer 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.
If you insert the math coprocessor in the wrong position you could permanently damage it and destroy the components on the main system board.
4.Gently push the coprocessor into the socket, pressing evenly on all sides, as shown below.
If the coprocessor does not go in smoothly, do not force
it; pull it all the way out and try again, keeping it straight as you insert it.
It is completely inserted when the surface of the coprocessor is flush (even) with the surface of the socket. Be sure it is inserted all the way.
5.Replace the subassembly and cover as described in chapter 3.
6.Then see
Installing and Removing Options