like bryonhowley said, your PSU is your down side. Nvidia recommends atleast a 400 watt psu. with this 350 watt PSU you maybe JUST able to run the 650 ti. i suggest upgrading the PSU to atleast 400 watts.ive calculated and found that your power consumption would be about just over 300 watts on load. so your 350 watt PSU will hold it but i still recommend getting a 400 watt PSU.