Re: Power supply help.
You should be fine with your 750W, the 700W is suggested for the whole system not just the card.
Whats this build primarily going to be used for?
I ask because you may be better off with an i7 2600k + P67/Z68 motherboard and less RAM.
Please read through the thread thoroughly before responding.
Nobody wants to read a wall of text, formatting is your friend.
i5 3570k | 8GB G.Skill 1600MHz | R9 290 | SeaSonic 750X