Hello guys. I had another post asking about whether or not an old 540 studio from Dell could play recent games with a simple graphics card upgrade. And some of you guys suggested the gtx. 750 ti. I just wondered if this would work without upgrading psu or needing better cooling for the motherboard? Ect. It looks like 300watts is all that's needed but won't that push my psu to its limits? Has anyone heard of someone trying this card in a stock 540s?