search for: fan_boost

...locking > becomes a thing on Fermi. Yeah, this would hinder our reclocking efforts :s The best idea I can come up with is to fake the temperature (register 0x20408) to 1°C (minimum the hardware allows us) and read the PWM duty, then we can get the maximum duty by setting the temperature to the fan_boost threshold. Not sure we have a sure-way of computing the fan_boost threshold though, maybe we can just use of the thermal throttling threshold for this (more on this later in the email). In any case, all of these solutions are workarounds. Given that the code to compute these values is already fou...

Hi Martin, I was asked to clarify a few things: (1) Are all the user reports of loud fans on Fermi-era GPUs? (2) When the VBIOS POSTs the card, it loads initial ucode onto the Falcon processor (PMU), which will do basic fan management on its own. We call this init ucode "IFR" (Init From ROM). nvidia.ko will restore the IFR ucode when unloaded. I assume the loud fan symptom occurs