cold plates and hot plates can be used with peltiers, liquid-cooled heat exchangers, phase change refrigeration or whatever. The cold plate is like a "cold-capacitor" storing cold so you have a buffer when your cpu heats up quickly. The hot plate is designed to transfer the heat as quickly as possible to the heatsink it is not re-absorbed into the parts that you want to keep cold. The trick to using these devices is proper insulation to keep out condensation (created by large difference in temperature between cold side and surrounding air, you need to watch your dew point closely) I made a peltier cooler setup with hot and cold plate and insulation for a K6-III 400 but I could never control condensation underneath the socket. With a slot1 or ppga on a slocket it is much easier to encapsulate the entire assembly against condensation.
Sysopsolutions has some excellent information on cooling here: http://www.sysopsolutions.com/Overclocking.html
[This message has been edited by Dimarini (edited 08-06-99).]
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