On Tuesday 10 December 2019 14:32:06 Chris Albertson wrote: > With a 3-wire fan there are two power wires and the third is a > tachometer. Fan speed is controlled by varying the volts (or duty > cycle) on the power wires. > > With a 4-wire fan all thee above wires do the same thing but wire #4 > is a speed control signal that is PWM. This saves the need to PWM > the power. > By moving the power switching device into the fans cooling air flow, good idea.
I'm reminded of the xkcd on how new stds are set, now all we have to do is std-ize the pinout... Asus, when I called them on an unrelated matter, answered the phone graciously, but is little or no help. They had no idea what a usb-3 gen 1 breakout was. I finally found some and ordered 3. > On Tue, Dec 10, 2019 at 4:16 AM Gene Heskett <[email protected]> wrote: > > Greetings all; > > > > I am running the stretch iso install here on this big house box, but > > since the fire destroyed the old Asus board, I now have a new Prime > > Z370-A ll, with a 9nth gen 6 core i5 running at 3.7GHz and 32G of > > ddr4 memory. Much quicker than the old 2.1GHz 4 core phenom. Pretty > > quick now. > > > > But the cpu fan I put in, a monster cooler-master, has the new 4 > > wire control, and is working very well, but is not reporting its > > speed. A run of sensors-detect only found coretemp and once > > modprobed, thats working well. Showing the max temps in the 29C > > range. Its a BIG cooler and I can't feel any heat at its base, so > > big I can't put the towers side panel on as it (the coolers heat > > pipes and radiator) is about 1/2" too tall. Shrug, its been off for > > 12 years now ;-) > > > > Does anyone else have any experience with these newer 4 wire fans? > > > > Thanks all. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
