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Unread 11-27-2002, 03:12 PM   #68
Cathar
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Join Date: Sep 2002
Location: Melbourne, Australia
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Quote:
Originally posted by pHaestus
Where this becomes confusing is what is required to push 6lpm through the -U vs. the -UH. Assuming that the HardOCP review's numbers were not just fabricated or random due to mounting variability, they showed that with Eheim pump and BIX and 1/2" tubing (can someone clarify which Eheim?) the -UH produced a slightly lower CPU temp. Certainly this could be in the margin of the test error, or it could also be true that with hobby pumps the -UH may result in lower temps when in a complete system. From a heat tranfer theory and from wb design standpoint, however, it is a poorer wb.

I would assume that you could extrapolate from the combination of pressure drop and C/W data from Bill that the -UH modified with the Swagelock fitting on the inlet would be the clear performance champion in a typical w/cer system.
Well for arguments sake, let's pick any point on that graph as you wish. I don't see much deviated from a 0.025C/W difference even at 2lpm, or at 8lpm. We see about as low a 0.02C/W difference at 8lpm, and as high as 0.03+ at 2lpm, so between 1-1.5C.

I thought BillA had shown that the smaller ID setup was the better performer due to the higher velocity water flow impinging right above the CPU die area.
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