In an effort to tame the heat and noise of an SLI system, Brian Gray set out with 3DCool.com to make a dual GPU system quiet along with cool.

In teaming up with 3DCool.com, I was able to put together what I
consider to be, pardon my pun, the coolest PC I have ever built. This
article will highlight the steps along the way that led to one member of
our regular LAN party group to say, "That's quieter than my laptop." Can
an SLI system be made to be nearly silent with out water-cooling?

Quiet SLI Project