Thanks for your response. Unfortunately 650w model is not listed on the website, they have a 620w model.
But thats not an issue, i might just go for a 750w.
What are your thoughts on 'X' and 'S12G' series? They're all priced similarly and i'm confused.
Edit: just found out that the S12G is not modular. But would still like to know how it performs.
Edit 2: Anything below 750W from the S12G series are not certified for haswell
link