MY parts so far
Xfx hd 7850 2gb
Zalman z11 plus
8gb patriot g2 ram
Western digital caviar green 2tb
And I plan to buy the Asus sabertooth 990fx 2.0
My question as I merely dont have the know how towork if this is compatible.
Will this psu work? I think the wattage was fine, as well as the ampere level, but beyond that im inknowledgable, nplease will it work!?
I wouldn't go as far as to say only go with those brands. I certainly wouldn't go for a £19 PSU though. If you cheap out on the PSU, you will almost certainly run into stability issues if you overclock or have any long gaming sessions.
You only need one connector for the HD 7850. Also, that's just a rough guide. Looking at your build, you would pull around 280W under full load. Anyway, I'd sooner trust that XFX with a 450W load than I would that Pulse PSU.
450W should be fine, I would get 500W if you can but only if it is a quality PSU. Quality comes first.
That's a good example of why people shouldn't obsess so much over wattages. That Corsair CX500 is no more powerful than the XFX 450W you and I both recommended above (I just recommended it at a cheaper store ). They both have 34A on the 12V rail. The difference is the XFX PSU is higher quality.