Quad SLI works on AMD AM2 With 850W PSU
 

NVIDIA is rather happy about its Quad show off SLI. Four are better than two because two are better than one, except if you are talking about troubles or broken ribs. You need an 850W power supply unit to make it happen and that won't be cheap for your electricity bill. At least it is cool to have four power cables in four graphic cards, which are again internally interconnected. Did we mention that the cards are much bigger than anything we've seen so far?

So basically one would need 2 PSU to be safe and a huge case to store it together with the 4 record size cards? :)

And when u mod your case so all hot air goes down to your feet u will never have to fear winter again!
Nice found nVidia!!

needs the 1KW PSU