2013 late rmbp just got it a week ago. I added some thermal pads onto the heat sink area so that the heat could transfer to the back cover and changed the thermal paste to coollaboratory pro. Everything is working great until today i notice when i am running win 8.1, if i press near the right loud speaker area or the same area on the back cover, the system makes notification sound , as if you have just plugged in a usb device or something. Anyone have any idea what is causing this? I can send a photo if needed.