new to computers question about gtx 750

So the PSU is bundled together with the case? Seeing how cheap are the combo with 480w PSU then it is most likely come with poor generic PSU. I think 750 might still work but I don't guarantee that. But even if 750 able to work I still advise you get good quality PSU. problem with generic is when they die they tend to bring 'someone' together with them. It is a few lessons that I learn the hard way lol when I start tinkering with PC parts during my younger days haha