The new 1070 FTW secondary BIOS does not increase fan speeds

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Mencius_
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2016/11/08 23:43:25 (permalink)
I posted this in the sticky but couldn't get a clear answer or information about it.
 
The new 1070 FTW BIOS does not seem to increase fan speeds, it seems to actually slightly reduce them at least up to the mid 60 Degs C.
 
I have now tested both the previous and the new secondary 1070 FTW BIOSes in 5 min 30 seconds of heaven. Ambient temps were 28 - 30 deg C. My HW monitoring results are below. I have included the GPU core temp, fan %, and fan tachometer columns only but can update with the rest.
 
From my testing it appears there is no (or negligible) fan speed increase in the new secondary BIOS and in fact there appears to be a slight fan speed reduction. I have only tested to the mid 60 deg C range - I'm not comfortable testing higher. The new secondary BIOS appears slower to ramp up the fan speeds. The idle fan RPM has also been halved from 1,000 to 500 RPM.
 
I don't really understand these changes and I have rolled back to the previous BIOS.
 
I would be grateful if anyone has information to help me understand these changes to the 1070 FTW secondary BIOS since they appear to be simply a fan speed reduction and contrary to my understanding of the purpose of this update.
 
I was happy with the previous secondary BIOS fan curve and would have been happy for it to go 200 - 400 RPM higher (which was my understanding of what this update was supposed to do). I don't want to use a software (XOC) fan curve solution and would really prefer to have a proper curve baked into the BIOS. Especially as the secondary BIOS would obviously seem to require more cooling, not less.
 
Previous 1070 FTW BIOS 

 
New (current) 1070 FTW BIOS
 
post edited by Mencius_ - 2016/11/08 23:45:46

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    Sajin
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    Re: The new 1070 FTW secondary BIOS does not increase fan speeds 2016/11/09 00:49:40 (permalink)
    I bet the reason you're not seeing the increase in fan speeds is because 60c isn't hot enough. 5 minutes inside heaven isn't long enough. Run heaven for at least 15 minutes. 


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    Mencius_
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    Re: The new 1070 FTW secondary BIOS does not increase fan speeds 2016/11/09 02:16:23 (permalink)
    Yes, quite possibly.
    With a cooler evening in Australia tonight and some recent case fan adjustments I can't get the card to go over 61c in 15 minutes of heaven anyway.
    I'm not particularly eager to test it at 70c - 80c+ for the sake of durability .... though I could fire up furmark and have a look.
    But regardless, even if the RPMs are higher at the extreme temperature end that still doesn't explain the idle speed reduction which is strange in itself...
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