Rcently I took apart my Macbook and replaced the stock thermal paste with some Arctic Silver 5. If for some reason my Macbook doesn't work and I need to send it in to AppleCare, will they know that I've opened up my Macbook and void my warranty? I read somewhere that there are liquid "sensors" inside, so if you spilled liquid on the keyboard, the sensors will change colors indicating there was liquid. Obviously I didn't spill any liquid inside when I was taking apart my Macbook, so I don't need to worry about that. I'm just a little paranoid about Apple voiding my warranty.