Messages in this thread | | | Date | Wed, 21 May 2014 22:36:45 -0700 | From | Guenter Roeck <> | Subject | Re: [PATCH] i8k: increase fan limit to 3 |
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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 <fbl@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.
> 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 ?
Guenter
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