Upgrading my Lenovo P300 Computer.

Hi all!

Maybe there's at least one or two of you out there that may have purchased a Lenovo P300 computer with an i7-4700.   I got it for less than $180, so no matter how you look at it, it's a pretty good deal.

That's not my complaint.  Benchmarks will do pretty awesome.  I just would like to know

if anyone out there has upgraded their computer with a better GPU?  If you have, tell me how you did it.  I realize that I may have to upgrade the PSU as well, but I saw the mobo, and it's doesn't have an extra insert for the power that the gaming mobos have.