How to control fan speed? Gigabyte motherboard

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andrew89898

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Jun 23, 2012
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Hi, I got a new CPU Cooler, Cooler Master Seidon 120V and it's pretty good idle temps in 30s and load temps in 50s with spikes to 60s. However upon using HWMonitor, I found out that it says my fan speed was 2400RPM for FANIO0 (pump is in CPU_FAN header, Fan on radiator is in SYS_FAN1) so I was confused. upon downloading Gigabyte System Information Viewer (my board is a z87-hd3) I found that I can control the speed of the rear fan (the fan on the radiator) and that it should be following the graph in Smart Fan Advanced but instead it lets me choose the rpm myself and I can select from 0 to 2400rpm (very loud). So my questions are how do I get it to auto adjust the RPMs based on workload? I have the curve set but it's not following it :/. Also is my pump suppost to be set to 2400rpm does that mean my mobo is giving it max power? It seems to think that it should be that all the time.

If you need any more info, ask.
Thanks!
 
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Chicano
My mistake!.. I thought I'd read AMD somewhere in your opening post... so, you won't find the same settings I suggested in a Intel board BIOS, but they may have similar tittles. You found the Fan speed control so that's what you were asking about. If you need to do further fan speed management, and you don't find more settings in the BIOS, you can use the Widows Control Panel \ Power Settings \ Power Plans... select the power plan you have active, and Change the Advanced power settings... go to the Processor Power Management \ System Cooling Policy \ Setting: Active... to make changes to the setting: click on "Change settings that are currently unavailable" (above the settings window). The setting you choose for the Minimum and Maximum...
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andrew89898

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Jun 23, 2012
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Hi, I just had a look in my BIOS, The only settings to related to fan are fan control: Silent, Normal, Fullspeed or user defined where I just had a percentage slider. I'll take a look again. I have the Z87-HD3 board with F8 BIOS.

Thanks.
 
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Chicano

Chicano

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Aug 29, 2011
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My mistake!.. I thought I'd read AMD somewhere in your opening post... so, you won't find the same settings I suggested in a Intel board BIOS, but they may have similar tittles. You found the Fan speed control so that's what you were asking about. If you need to do further fan speed management, and you don't find more settings in the BIOS, you can use the Widows Control Panel \ Power Settings \ Power Plans... select the power plan you have active, and Change the Advanced power settings... go to the Processor Power Management \ System Cooling Policy \ Setting: Active... to make changes to the setting: click on "Change settings that are currently unavailable" (above the settings window). The setting you choose for the Minimum and Maximum processor state, will influence the Fan speed... while the System cooling policy is "Passive" the fan speed will remain constant.

Edit:
Something else I messed is that you have a water cooler with the fan mounted on the case, so the controlled fan speed will depend on the motherboard power header you connect it to. On the CPU fan header it should act and respond to the CPU management settings, exactly the same as the stock cooler fan.
 
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