Hmm. Thanks for the reply. This is confusing. I have your speed below in screen shot of 2700rpm and 2850 max. A little more research show the Tech Tool Pro Fan Test agrees with these speeds.
However, I had previously used SMC Fan Control but prefer the MFC ability to ramp up speeds automatically. It shows 3,800 rpm as max speed. I can also set speed to 2700rpm which is then confirmed on both SMC FC and iStat Nano and then set to max speed of 3800rpm which is again confirmed by both pieces of software. I can also hear increased fan speed.
So ... a bit of a mystery. Maybe 3800 is possible but not recommended??
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