Help with PSU. 850W and SLI config

A good 850W will be fine. That would not be a good one.

The best 850w PSU are The Corsair 850HX and Antec Signature 850w. That's it.

If the PSU is all you have available or all you can afford, then it's probably OK. However, better ones are available for less unless you live somewhere unusual.

Both the Techpowerup and Anandtech reviews fail to test a few key things, but are decent reviews. The Tech-reviews site doesn't really contribute anything. The Anandtech roundup really does not reach any solid conclusion, and there are better PSUs not mentioned of course.

Techpowerup pretty much sums things up well, but I also note they didn't test the +5VSB. It's an OK PSU at a high price, when you can find it.

At Klompett, the CM 850 - €143.01
http://www.komplett.ie/k/ki.aspx?sku=390146

or the Corsair 850HX - €149.00
http://www.komplett.ie/k/ki.aspx?sku=460921
That's a FAR better PSU

Here's a review:
http://www.jonnyguru.com/modules.p [...] 5&reid=153