[SOLVED] controlling fanhub?

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dimtodim

dimtodim

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Sep 4, 2018
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i buy fanhub and connect all pc case fan on him, only cpu cooler connect on mobo cpu_fan...all fans on fanhub work on 100% speed i think...my question is why i cant see in bios slot where fanhub is connected?i have four slots on mobo for fans in bios only see three
 
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That is a standard-design fan HUB. You need to understand how they work.
  1. The Hub gets all power for its fans from the PSU directly via the cable that plugs into a wide SATA power output from the PSU. That fixed 12 VDC power source is shared to all the Hub's fans.
  2. The Hub also gets from one mobo fan header the PWM signal required for a PWM fan to control its speed. That signal also is shared out to all the Hub's fans. This means that the mobo header it uses MUST be configured to use PWM Mode, and not DC Mode.
  3. This Hub can control the speed ONLY for PWM (4-pin) fans. Any 3-pin fan plugged into it will always run full speed. This is a result of the design of the older 3-pin fans, and not a flaw of the Hub.
  4. Any fan header...
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Paperdoc

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That is a standard-design fan HUB. You need to understand how they work.
  1. The Hub gets all power for its fans from the PSU directly via the cable that plugs into a wide SATA power output from the PSU. That fixed 12 VDC power source is shared to all the Hub's fans.
  2. The Hub also gets from one mobo fan header the PWM signal required for a PWM fan to control its speed. That signal also is shared out to all the Hub's fans. This means that the mobo header it uses MUST be configured to use PWM Mode, and not DC Mode.
  3. This Hub can control the speed ONLY for PWM (4-pin) fans. Any 3-pin fan plugged into it will always run full speed. This is a result of the design of the older 3-pin fans, and not a flaw of the Hub.
  4. Any fan header can deal with the speed signal coming back to it from only ONE fan. So the Hub will send back to its host header the speed of the fan plugged into its marked Port #1, and not from any others. Make sure one fan is plugged into Port #1. Your mobo can show you that one speed, but you will never "see" the speeds of any other fan on the Hub.
 
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Solution
dimtodim

dimtodim

Honorable
Sep 4, 2018
680
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Paperdoc said:
That is a standard-design fan HUB. You need to understand how they work.
  1. The Hub gets all power for its fans from the PSU directly via the cable that plugs into a wide SATA power output from the PSU. That fixed 12 VDC power source is shared to all the Hub's fans.
  2. The Hub also gets from one mobo fan header the PWM signal required for a PWM fan to control its speed. That signal also is shared out to all the Hub's fans. This means that the mobo header it uses MUST be configured to use PWM Mode, and not DC Mode.
  3. This Hub can control the speed ONLY for PWM (4-pin) fans. Any 3-pin fan plugged into it will always run full speed. This is a result of the design of the older 3-pin fans, and not a flaw of the Hub.
  4. Any fan header can deal with the speed signal coming back to it from only ONE fan. So the Hub will send back to its host header the speed of the fan plugged into its marked Port #1, and not from any others. Make sure one fan is plugged into Port #1. Your mobo can show you that one speed, but you will never "see" the speeds of any other fan on the Hub.
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Thx man i know all that staff and configure all work property
 
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