Loeschzwerg wrote on 07.06.12 at 11:43:02:Just a little math: An AAlchemy needs at least 25A for VSA100 supply voltage of 2,7-2,9V, that's 72Watt at max. Let's say 80Watt. Divided through 8 you get 10Watt per each VSA100.
A V6k with 183MHz is said to pull around 60Watt from external PSU, let's add the max 25Watt from AGP and you got 85Watt for the total card. The card clocked at 200MHz won't need more than 100Watt.
In my opinion the use of peltier elements is pure waste of money and like you noticed yourself there is a high risk.
I agree. Accordingly to VSA-100 documentation, a Voodoo5 6000 draws 65W and I think this value should refer to the total power consumption. If we assume 25W for the AGP slot, then your calculations about the max power consumptions af a single VSA-100 chip are correct
So actually a Voodoo5 6000 needs even less power than we are used to think.
First to think about to use peltiers, to know the total dissipative power of the liquid system is also needed.
@trevormacro: Let me inform you that overclocking is not only a matter of cooling. 220MHz is just a theoric limit upon which we can only speculate. There are no proof about such clockrate. VSA-100 specifications says clearly that VSA-100 is designed to work up to 200MHz. All your tests should all lead you to the same conclusion; regardless of how fast is the graphic memory used, the VSA-100 silicon is limited to that speed. You are on the edge of a technology.
If you don't give more power to the card you won't go very far. Overvolt is the key and here is where liquid cooling really is going to help.
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