Why did you go to shorter fins? Was the performance alot better w/ shorter ones?
I originally used the short fins because of limitations in manufacturing and because I wanted very high fluid velocity through the block. I haven't gotten around to testing the block with the 0.25" deep channels yet, but I have noticed that going from 0.050" channels to 0.031" channels noticeably improved performance. I believe the extra surface area is the main reason.
My ambient temps usually hover around 21-23C. Thanks for the congrats. My CPU thanks me every day, too!
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