Randomly shuts down for no reason
My MacBook Core 2 Duo late 2006 2.0GHz A1181 shuts down for no reason. there if no difference if im working on it or not. Sometimes it shows me the shutdown menu (im running 10.6.8). This only seem to happen if i have my top-case connected. without top-case and with usb mouse and keyboard everyting runs fine. I already checked the temperatures but they are normal. Even with gaming i reach 60-65 Celcius.
Do i need to replace the top case or is it a problem with the connector on the mainboard?
BTW. with topcase connected the keyboard, mouse and power button are working.