I remember back when I had my Mac SE, I purchased a chip that was supposed to boost the performance. It was a simple add-on... just open up the box and add the chip to the motherboard in a specific way. Yes, I did this, but did not notice any changes afterwards. The computer continued to work as it always did. Now that I think about it, I was WAY over-trusting, as that could have caused a complete meltdown of the computer!
Even IF there was a chip (there isn't!), what could it do? How would it open up a doorway to the outside world?