Help! My computer was running perfectly fine yesterday but today I just bought a new cpu and I had put it in computer along with its heat sink. When I turn on the computer all the fans work my gpu lights up and so does the power supply but the power button is not lit. When I turn it on it also does not connect to my monitor it says NO SIGNAL. Please help I've been sitting here stumbled and frustrated for 4 hours any suggestions (might send it to the repair)