Les:
Calibration is still pending; as is that MCWChill review (for that reason). Not scientific at all; just when I rebooted I turned on K7Burn and noted die temps were down 4-5C. I was planning on repeating the PWM vs delta T for 5 points tonight and then also running as a function of CPU voltage and of MHz. A late night for me.
I am planning on getting 5 heatsink mountings with the same fan, MHz, and voltage to be able to do statistics. This testing then becomes more time intensive than a waterblock if multiple fans are tested. I kinda like being able to place different fans on the Tornado PWM curve but not sure exactly how useful it is for someone making buying decisions. There has to be a clearer way to tabulate noise/performance relationships. One thought I had was to plot a range of "acceptable C/W" vs. "MFGR dBa". This way you could see what noise level is required to achieve a certain performance. Still ruminating on this.
KE Yes to K7Burn (high priority). But actual die temperatures range from upper 40 (100%) to high 50C (5%). Note the performance is DELTA T; not quite as impressive as one would think but still quite good for air cooling.
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