What kind of video card do I need for an HP 753n?

[Derail]

I've been trying to play many games but my graphics just don't seem to be up to the task with my hp 753n. Do I need to buy a new motherboard since the video card is integrated or can I just buy a new video card?

[jbennet]

hps have propretary motherboards, cases and PSUs like dells do, so you cant replace them. Therefore you will be unable to install a lot of recent video cards as they need a lot of power and HPs only ship with a PSU just big enough for thier spec