the 6850 draws a little over 100w under load, so it only needs another 25w or so over what it can draw from the motherboard, which your 5v rails can cover easily.
No. that PSU actually isn't bad. It's a Sparkle unit (which means it's made by FSP). while they're not pretty and no frills, they're stable and deliver voltage with small fluctuations. It will support your system with that card without issue.
the 6850 draws a little over 100w under load, so it only needs another 25w or so over what it can draw from the motherboard, which your 5v rails can cover easily.
Okay that's good but the review you send says that one has a 6 pin GPU cable I can't really find my GPU cable on the Power supply I have :/
I'm still new in this computer building so I might be looking wrong way.