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X99 Classified - CPU Fan Headers (1 amp PWM) - There are 3 of them on the board, Issues?

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efilloon
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2017/04/03 08:15:36 (permalink)
In the bios:
 
CPU Smart Fan #1 Setting, this will work with PWM fans and I can control the speed with SpeedFan and Sentry 3 controller. Works great.
 
CPU Smart Fan # 2, I cannot control the fan speeds, the PWM fans are on high speed. I think it's because you have to select either from CPU, PWM or Sys drop down that you are locked in with that, I tried to select from all three and the PWM fan is on high speed and yes I tried to change the speed on Level 1 through 4 on each selection but still no change in speed.
 
CHA Smart Fan #3, I cannot control the fan speeds, the PWM fans are on high speed. Same results are #2
 
Can the bios be updated to make the CPU Fan Headers all the same like CPU Fan Header #1? I want to be able to control all my PWM fans with either Speedfan or Sentry 3 controller. Take out the drop down choosing CPU, PWM or SYS selection and just put default fan speed like CPU Fan Header #1. So we can use more than one CPU Fan Header and be able to control the speed of the PWm Fans.
 
Thanks

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    Cool GTX
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    Re: X99 Classified - CPU Fan Headers (1 amp PWM) - There are 3 of them on the board, Issue 2017/04/03 09:13:55 (permalink)
    These are what I use, to connect all of the radiator fans on Nibbler, see my Mods Rigs for details
     
    I'd look and tell you my BIOS settings; but, too busy folding currently
     
     
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    GTXJackBauer
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    Re: X99 Classified - CPU Fan Headers (1 amp PWM) - There are 3 of them on the board, Issue 2017/04/03 11:19:55 (permalink)
    Some PWM hubs have all their signal readings as the output displayed readings will be all over the place.  The SPLITTY9 from Aquacomputers works like a charm as it only has one signal coming back.

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    ragevirusqq
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    Re: X99 Classified - CPU Fan Headers (1 amp PWM) - There are 3 of them on the board, Issue 2017/04/03 11:27:30 (permalink)
    ONLY the one CPU header is true PWM. The other fan headers do not send a true PWM signal. They use voltage control. I opened a thread myself a while back about this as it states in the manual that they are "PWM" which they are not. 
     
    I use the swiftech spiltters to spread the one true PWM signal around. However this doesnt help with multiple pumps or different speeds etc. 
     
     

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