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Gigabyte GA-X79-UP4 System Fans PWM Control, How Does It Work ?

post #1 of 3
Thread Starter 
I'm a bit confused about how System Fan Control works on this board. There are 2 three pin and 2 four pin Sys Fans and I have 3 pin fans connected to each one.
The bios has just one System Fan Control that appears to work on only one of the 3 pin fans. I wanted to know what happens if I add PWM Fans to the 4 pin Sys Fan headers, do I then get control of those ?
I've googled and looked at the user guide but havn't been able to find any definitive info.
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post #2 of 3
Try SpeedFan with these settings.


According to manual, header 1 supports voltage control, and header 2 supports PWM. CPU header supports both. 3/4 are either 100% or 0%.
Edited by DeXel - 2/5/13 at 1:07pm
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Intel Core i5 3570K Gigabyte GA-Z77X-UD5H EVGA Geforce GTX 780 Classified Crucial Ballistix Sport 2x8GB 1600Mhz CL9 
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Samsung 830 Western Digital WD1001FALS Samsung HD753LJ ST3300822AS 
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post #3 of 3
some headers only work on PWM control(4-pin) i am not sure which ones. IMO if you want better fan control just go buy a $10 controller, it is much less hassle and you don't have to reset things if you clear CMOS.
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Intel 5960X Extreme Edition @ 4.5GHz Always Changing VisonTek R9 290 G.Skill Ripjaws 4 16GB (4x4GB) DDR4 @ 3200MHz 
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Overclock.net › Forums › Intel › Intel Motherboards › Gigabyte GA-X79-UP4 System Fans PWM Control, How Does It Work ?