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Originally Posted by TMonte
Thanks for the reply.
I always thought putting the rad before the CPU block would be best, but isn't it true that impingement style blocks like the Storm work best with pressure directly from the pump? I saw a DD instructional video where they take a CSP-MAG directly to a TDX. Is that not necessary with a D5?
Tom
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Not neccessary for ANY block. Pressure degrades from its max at the pump outlet to its min at the pump inlet. Wether it drops a lot at first and then a little at the end or a little at first and a lot at the end is immaterial to the performance of any waterblock.
Putting a pump right on the waterblock may be good due to turbulence with the older designs, but newer designs will not benefit at all.
Next, whatever! Measure the ID as it varies.
Yes, "starvation" of the pump is a factor. Another (better) term for this is "net pressure suction head". Basically, these pumps hate restriction on the inlet. Like 90 degree 1/2" fittings on Eheim 1250's. They perform best when they have a short section of large bore tubing to a reservoir.