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Quick Reference Graphs
The readings are taken at a distance of 15 cm and also 150 cm. The latter figure being the supposed distance you would sit from the base unit.
The noise levels at 15 cm:
The noise level at 150 cm:
The first graph shows the units working on the cpu ( Duron ) running at it's default speed of 700 mhz with a core voltage of 1.6v.
The next graph shows the coolers performance at 900 mhz ( 9*100 ) with a core voltage of 1.775v. The cpu was unable to run at this speed using the generic fan and therefore it is not included.
The last chart is with the cpu running at 945 mhz ( 9*105 ) and core at 1.85v. I did not take the CB5 idle temp but can safely assume that it is in excess of the others so I have given it a 1C increase over the next cooler. The gaps are because we did not test the heatsink + Delta at idle speed so we have left them blank.
All coolers were tested on the same rig with the ambient room temperature at 22C with +/- 1C error margin (Thx BlitZ).
Thanks to Mac for the idea.