I used one of those Antec 850W in my Yamaha mod a couple of years back and i got to say that was one of the noisiest POS PSU's i've ever used NaeKuh and it got ditched at the first opportunity.

I got dragged in by the yellow stripes as it fit in with the mod which was a big mistake.....horrible horrible thing it was

And OMG what's with only 1x 8pin on that 1600w lump