Apple PC Compatibility Card - Manual (Page 43)

43 Installing the Card in a Power Macintosh 7200, 7300, 7500, or 7600
20 Route the cable over the top of the card and around the back of the Macintosh logic
board. Then plug the cable into the audio connector on the logic board.
Keep the cable away from the heat sink and center support post.
Insert the cable’s larger plug into the CD audio connector on the logic board,
where you unplugged the ribbon cable in step 17.
Route the cable
around the back
of the computer’s
interior as shown.
Heat sink Support post