that computer uses by default factory installed a 240w PSU, I wonder how you will be able to run that GTX 650 on it
looking quickly at https://outervision.com/power-supply-calculator and plugging in your specs with the GTX 650 your running at 267W.
looking at your parts plugging in part picker, they say 210W
so its going to be close for that power supply to sustain that video card....