the need for speed

[Florin Boariu]

Paul Eduard Schenker wrote:
> 
> I have used Peltier elements (expensive) for an astronomical ccd camera and
> got to about -35C by watercooling the "hot" side of the element to about
> +18C. I read somewhere that you can go much lower with two Peltiers in
> series. What you have to look at, i.e. calculate, is the amount of heat you
> have to remove and then build the cooling system accordingly.
> 

Please excuse my naive question, but why do you need temperatures below
zero to cool down a CPU? Is it to turn down the resistance of the
material, so that it doesn't melt when you clock it 2 or 3 times higher?
(i think this is it, but i want to know for sure)

How high can you really clock a CPU that way (supposing you really get
it as cool as you want)?

florin.
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