Apple Video System - Manual (Page 45)

15 Press the reset button on the logic board. Then gently but
firmly push the board back into place within the computer.
You will need to push a little harder at the end to make
sure the connectors at the back of the board are seated in
their slot.
Note: If you can’t find the reset button, it may be in a
different location on your logic board. Check the manual
that came with your computer, in the section in the
appendix about installing expansion cards. An illustration
there shows where the reset button is for your computer.
1 Press the reset button.
2 Gently but firmly
push on the vertical
plate until the logic board
is solidly back in place.
39 Installing the Card and Software and Connecting Video Equipment