On Wed, May 21, 2014 at 10:36:45PM -0700, Guenter Roeck wrote: > On 05/21/2014 08:45 PM, Flavio Leitner wrote: > >On Wed, May 21, 2014 at 08:32:24PM -0700, Guenter Roeck wrote: > >>On 05/21/2014 07:19 PM, Flavio Leitner wrote: > >>>From: Flavio Leitner <f...@sysclose.org> > >>> > >>>It is possible to increase left fan speed on a > >>>DELL Precision 490n system up to 3. > >>> > >>> value fan rpm > >>> 1 35460 > >>> 2 64740 > >>> 3 78510 > >>> > >>Guess the speed factor 30 doesn't apply here. > > > >Those are actual rpms, not just a multiplied rpm. What I mean > >is that you can hear the fan spinning up or down and the > >temperature going up or down accordingly. > > > I don't think there are any fans running at 78k rpm. The real speed > is 78,510 / 30 or 2,617 rpm. You should set the fan_mult module > parameter to 1 for your system.
Sure. I will do that. I didn't want to change anything else besides the speed level and that is what sensors reports by default. > >But even setting it to 3 is not enough to spin at maximum > >speed. Anyway, now I can load the system without the FBDIMM > >going above 75oC. > > > Did you try to set higher values ? Up to 4 which did nothing that I could notice. No difference regarding to noise or temp or rpm. fbl -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
