SpeedZone
Rated NC-17
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 Posted: Fri, 11 Apr 2008 18:20:26 Post Subject: |
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Well...if thats true...then it would surely be worth to change other 2 psu's....because 60W less...means (if we assume they're on 24/7)...1440W per month...or 17.280W (17+KW) less power used per year. 
Dont know for sure (you will be able to tell us when you test it), but i personally think there is something else that's causing that difference. Because if 500W are 80+ power efficient...that would mean that in reality systems use 130W + those 20% (ok maybe slightly less) that psu's "leak"... = 156W measured at power outlet. So in their case...systems use AT LEAST 130W of pure power, and that is still more than the other system uses (120W)even if psu would be 100% efficient (which we know it isnt). If you measured correctly, the other system uses some 100-105W and the rest all the way till measured 120W is due to psu loses. But in that case that would mean that mobo with ram uses only some 5-10W...because i read that G0 uses 95W alone at full load!? So there must be something else here...either that "120W" machine wasnt at full load....or....well dont know...   
Here is what i found about efficiency : 80 Plus certification guarantees that this 500W power supply is at least 80 percent efficient at 20 percent, 50 percent, and 100 percent loads. So if its like you said...that they are 80+ certified...they should deliver 80% or more efficiency already at 20% ... thats at 100W.
Well...you should test in details and see....all i wish you is good luck in hunting lost watts. And let us know later about results, ok?
Finally...noone answered my previous question...does it matter (in terms of more points received per finished WU) whether someone finishes WU in i.e. 3 hours or in 24 hours? I believe its the same score for all tasks done in one day or less, right? Just wanna know whether its worth to push G0@3.4 to the max to finish asap (some 15hrs)...or will i get same score if i ran it at stock speed and finish in i.e. 24hrs?
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