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Cathar · 08-09-2005, 05:47 PM

Wait a minute. Gotten my math wrong on the rpm vs power thing. Power is proportional to RPM^3. So at 90% RPM, power would be ~0.73 as at 100%.

So 0.73 of 25-30w = 18.25 - 22W. Factoring in that not all input power makes it into the loop as heat (~85%), so 15.5W - 18.7W.

So yeah, this then reaffirms that given the initial specs as stated that water-coolers would be wanting something that spun at 90% of OEM rpm speed.

08-09-2005, 05:47 PM	#15
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	Wait a minute. Gotten my math wrong on the rpm vs power thing. Power is proportional to RPM^3. So at 90% RPM, power would be ~0.73 as at 100%. So 0.73 of 25-30w = 18.25 - 22W. Factoring in that not all input power makes it into the loop as heat (~85%), so 15.5W - 18.7W. So yeah, this then reaffirms that given the initial specs as stated that water-coolers would be wanting something that spun at 90% of OEM rpm speed.