After installing a new GPU and PSU my computer freezes often!

Boneyear1

Honorable
Aug 20, 2013
2
0
10,510
I just installed my new GeForce 650 ti BOOST 2GB GPU, and a new Corsair HX750 PSU. Now my computer keeps freezing whenere every i try to play games on it. It did not do this before it only started happening after i installed the 2 parts above. Please Help !