search for: pwmdutycycl

...uty cycle is inverted. That > would probably make it *very* difficult to find a sensible algorithm that > covered all the SKUs, given that some are inverted and others are not. > > For the noisy GPUs, a very useful experiment would be to try inverting it, > like this: > > pwmDutyCycle = pwmPeriod - pwmDutyCycle; > > ...and then see if fan control starts behaving closer to how you've actually > programmed it. > > Would that be easy enough to try out? It should help narrow down the > problem at least. > Hey John, Unfortunately, we know about PWM inve...

...lgorithm that >>>>> covered all the SKUs, given that some are inverted and others are not. >>>>> >>>>> For the noisy GPUs, a very useful experiment would be to try inverting it, >>>>> like this: >>>>> >>>>> pwmDutyCycle = pwmPeriod - pwmDutyCycle; >>>>> >>>>> ...and then see if fan control starts behaving closer to how you've actually >>>>> programmed it. >>>>> >>>>> Would that be easy enough to try out? It should help narrow down the...

Hey, Thanks for your answer, Andy! On 22/11/17 04:06, Ilia Mirkin wrote: > On Tue, Nov 21, 2017 at 8:29 PM, Andy Ritger <aritger at nvidia.com> wrote: >> Hi Martin, > > Martin should have complete answers, > >> >> I was asked to clarify a few things: >> >> (1) Are all the user reports of loud fans on Fermi-era GPUs? > > Yes. Although I

...Us, the interpretation of the PWM duty cycle is inverted. That would probably make it *very* difficult to find a sensible algorithm that covered all the SKUs, given that some are inverted and others are not. For the noisy GPUs, a very useful experiment would be to try inverting it, like this: pwmDutyCycle = pwmPeriod - pwmDutyCycle; ...and then see if fan control starts behaving closer to how you've actually programmed it. Would that be easy enough to try out? It should help narrow down the problem at least. thanks, John Hubbard

...t >> would probably make it *very* difficult to find a sensible algorithm that >> covered all the SKUs, given that some are inverted and others are not. >> >> For the noisy GPUs, a very useful experiment would be to try inverting it, >> like this: >> >> pwmDutyCycle = pwmPeriod - pwmDutyCycle; >> >> ...and then see if fan control starts behaving closer to how you've actually >> programmed it. >> >> Would that be easy enough to try out? It should help narrow down the >> problem at least. >> > > Hey John, &g...

...ly make it *very* difficult to find a sensible algorithm that >>> covered all the SKUs, given that some are inverted and others are not. >>> >>> For the noisy GPUs, a very useful experiment would be to try inverting it, >>> like this: >>> >>> pwmDutyCycle = pwmPeriod - pwmDutyCycle; >>> >>> ...and then see if fan control starts behaving closer to how you've actually >>> programmed it. >>> >>> Would that be easy enough to try out? It should help narrow down the >>> problem at least. >>...

...ult to find a sensible algorithm that >>>> covered all the SKUs, given that some are inverted and others are not. >>>> >>>> For the noisy GPUs, a very useful experiment would be to try inverting it, >>>> like this: >>>> >>>> pwmDutyCycle = pwmPeriod - pwmDutyCycle; >>>> >>>> ...and then see if fan control starts behaving closer to how you've actually >>>> programmed it. >>>> >>>> Would that be easy enough to try out? It should help narrow down the >>>> pr...