So i bought yesterday a coolermaster xdream cpu cooler. I removed the motherboard and the ancient avc cpu cooler and mysteriously the cpu cooler were attached to the motherboard with screws. So i checked behind of the motherboard and saw a metal backplate with four screw at the side. How can i SAFELY remove it? I would be very happy if someone could explain it to me because i have read that the removement is extremely critical for the life of the motherboard. Thank you!