46 - iMac G5, 17-inch Take Apart Fans, Upper
6. Move the video cable to the left to access the fan screw near the top of the computer
7. Depending on the type of screws present (Torx 8 or Phillips #2), loosen the two fan
screws. Note: You don’t have to remove the screws from the rubber grommets to
remove the fan, just loosen the screws