Source: http://gizmodo.com/5580635/logitech-revue-google-tv-box-is-powered-like-a-netbook
Logitech's Revue, their set-top-box Google TV machine, just hit the FCC and got all of its parts documented. That it's powered by a 1.2GHz Intel Atom processor and 4GB RAM isn't surprising, but the fact that it has a built-in fan is.
What this means is that unless the fan spins at quite a low speed, it's going to generate noise comparable to a netbook. Probably louder than a netbook, because it's going to be doing some intensive video tasks (as well as running apps). You can't say for sure that this is going to be loud until you see it, but the fan hints at the fact that it won't be silent. [FCC via Wireless Goodness via Liluputing via Slashgear]