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Originally Posted by freeloadingbum
Why would increasing the baseplate thickness help when it seems that the overall jet grid area isn't being increased? Would this design have more jets as well?
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Well the jetted area on the Cascade is larger than any core is presently, and this is to cater for large cores that may be covered by an IHS.
As it stands, the heat of say, a Barton die underneath the shipping Cascade really only engages about 35% of the block's jetted area. The other 65% is basically cooling nothing.
By making the base-plate thicker, the heat will spread to a wider area, engaging more of the jetted area in the act of cooling the heat. By making the base-plate thicker, the thermal resistance inherent in the copper's conduction is also increased.
As I was saying, there is a trade-off point for the base-plate thickness on the basis of the rate of convectional cooling being applied.