Hi Ben, Ben Peddell <klightspeed@xxxxxxxxxxxxxxxx> writes: >>> The 5000RPM was interpolated from my measured RPM pulse rate (4200PPM) >>> of the 80mm fan in my DS211j (which uses the 150-32-35 fan config) at >>> maximum RPM. >> >> Then, I think I need to change the speed map to have 1900 RPM as max >> speed. Out of curiosity, how did you measured the RPM pulse rate >> exactly? > > I hooked a logic analyzer to the sense pin and measured the pulse rate. > > Looking at the specifications of the fan in this unit (an EC7025L12ER), > it has a maximum fan speed of 3000RPM, so it looks like it uses two > pulses per revolution and not one as I had assumed when I created the > speed map. Thanks for this feedback. Cheers, a+ -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
