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Thread: Help with MB fans connectors and other little doubts

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    Default Help with MB fans connectors and other little doubts

    Hi guys

    I have a GA-Z87X-OC Force MB and the MB has a lot of PWM fans connectors

    Today `ll change the radiators fans, but when i bought this machine it was not me that mounted it

    So i have a question here, as you can see in the image manual i uploaded there is a cpu fan and a cpu opt_fan one near each other:



    Should i connect the both radiators fans in this connectors?

    If yes why the OPT fan when i monitor spins very slow compared to the cpu fan one and when i run a prime or a IBT it starts to run almost as equal as the cpu fan one?

    Another question:

    At bios i have all the option to set all the PWM fans or to auto / manual / quiet / full speed , i saw a huge difference at prime and IBT temps setting the fans at bios tor run at full speed from the beggining instead set to normal, even with the normal option enabling the PWM on and getting the same RPM as the full speed when i stress the PC, why this happen? Should i let all full speed, just opt full speed, just cpu full speed or let as it came and leave all normal and let PWM works itself?

    Hope you understand my doubts, my english is not so good

    Thanks guys

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    Default Re: Help with MB fans connectors and other little doubts

    i don't think it really matters, so long as you connect something to the cpu_fan (i have my pump rpm wire) otherwise it won't boot.

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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by Pete View Post
    i don't think it really matters, so long as you connect something to the cpu_fan (i have my pump rpm wire) otherwise it won't boot.
    But should i leave all the fans at auto controlled at bios or put someone in quiet or full speed?

    Thanks

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    Default Re: Help with MB fans connectors and other little doubts

    if you put them in auto, i would think that they are controlled by the temp of the cpu, so they should spin up when the cpu gets hot. But doesn't gigabyte have some sort of software so that you can control this manually while it's booted?

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    wsarahan (09-01-2014)

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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by Pete View Post
    if you put them in auto, i would think that they are controlled by the temp of the cpu, so they should spin up when the cpu gets hot. But doesn't gigabyte have some sort of software so that you can control this manually while it's booted?
    I'll check it if gigabyte has some software to control pwm fans

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    Default Re: Help with MB fans connectors and other little doubts

    think it's called "easytune" or something like that

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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by Pete View Post
    think it's called "easytune" or something like that
    Thanks, just found here, but will it let me change the fan speed from all pwm fans?

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    Default Re: Help with MB fans connectors and other little doubts

    awesome!

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    Default Re: Help with MB fans connectors and other little doubts

    Just a side note about auto, it usually sets the temp limit automatically as well. If you like to keep your core temps nice and low, you might want to play with manual settings so you can set your own threshhold temp. Also, the temps are based usually on the mobos socket temp, which can differ as much as 10c from the actual core temp reported by the processor. Just check to make sure you settings, auto or otherwise, are getting the fans where you want them when the temps go up.

    On my asus board, I have my cpu and opt. fans to go 100% at 55c because at that point my core temp is already hitting the 63c temp limit of my fx processor.
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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by joshjaks View Post
    Just a side note about auto, it usually sets the temp limit automatically as well. If you like to keep your core temps nice and low, you might want to play with manual settings so you can set your own threshhold temp. Also, the temps are based usually on the mobos socket temp, which can differ as much as 10c from the actual core temp reported by the processor. Just check to make sure you settings, auto or otherwise, are getting the fans where you want them when the temps go up.

    On my asus board, I have my cpu and opt. fans to go 100% at 55c because at that point my core temp is already hitting the 63c temp limit of my fx processor.
    Got to make that with the GB ai Tuner, thanks

    But like here, the cpu_fan always spins at almost maximum rpm even being PWM one and the opt_fan spins very slow and just show the real force when it's needed getting almost or even more than the cpu_fan speed?

    Because that's what happens here, would like to know if it's normal

    Thanks again

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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by wsarahan View Post
    Got to make that with the GB ai Tuner, thanks

    But like here, the cpu_fan always spins at almost maximum rpm even being PWM one and the opt_fan spins very slow and just show the real force when it's needed getting almost or even more than the cpu_fan speed?

    Because that's what happens here, would like to know if it's normal

    Thanks again
    Doesn't sound normal actually. I would first try switch fans. If it is always the same header, no matter what fan you put on it, then I would look to Bios updates, to see if it's a minor stability issue Gigabyte already fixed. If it still stays at full speed, then I would look to support for something possibly wrong with the board.
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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by joshjaks View Post
    Doesn't sound normal actually. I would first try switch fans. If it is always the same header, no matter what fan you put on it, then I would look to Bios updates, to see if it's a minor stability issue Gigabyte already fixed. If it still stays at full speed, then I would look to support for something possibly wrong with the board.
    Sorry man it was my mistake

    It is not running 100% all the time just checked here

    It runs with 1100 rpm when idle and the OPT runs 900 RPM when idle, if i put some stress test both goes to the limit, almost 1600 RPM, this using the default settings, but as you said i can make my own cooler curve with the Gigabyte EasyTune app, so everything is ok right?

    Another question:

    In the rear of my case i had the Corsair 140mm quiet Edition and it runs very slow, but it was a 140 mm fan but i have here a GentleTyphoon 120mm D1225C12B5AP-15 that fits my cosmos 2 without any problem and runs at 1850RPM at 12V (3pins) is more deal to use the Gentle one 1850RPM 120mm or the Corsair 140mm 1100 RPM?

    But even with the GentleTyphoon it`s not running at 1850, it stays at 1790/ 1800/1750 RPM when monitoring by software, is it normal?

    Thanks again

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    Default Re: Help with MB fans connectors and other little doubts

    Yeah that all sounds normal. As far as air flow, your 120mm will probably push more air at the expense of noise. If you don't mind noise, go with the 120mm, but if you like the silence, the 140mm will push decent air for lower rpms and less noise. I always push my case fans as fast as they can without actually bugging me on noise.
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    Default Re: Help with MB fans connectors and other little doubts

    Which fans are you using? 3 pin or 4 pins? If you are running 3 pin fans then PMW will not work. You will only be able to adjust in the bios as you were doing. If you are good with the noise then run them at Full.
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    Default Re: Help with MB fans connectors and other little doubts

    Quote Originally Posted by Cyberburnout View Post
    Which fans are you using? 3 pin or 4 pins? If you are running 3 pin fans then PMW will not work. You will only be able to adjust in the bios as you were doing. If you are good with the noise then run them at Full.
    The GentleTyphoon 3 pins, full speed

    The radiators fans PWM

    The 2 doubts that i have is if it`s normal that even with both fans at the radiator using PWM the cpu_fan at idle stay at 1100RPM and the opt_fan at 900 RPM, when the pc needs juice both fans goes to the max itself

    And the second doubt is about the rear fan from my PC, i was using the Corsair 140mm Quiet edition because we still do not have the 140mm SP edition and it was slow for me, about 1100/1200 RPM, and i have here the
    GentleTyphoon 120mm that fits my cosmos 2 rear fan pannel that uses 12v (3pins) and runs at 1850RM, i don`t care about the noise

    So should i use the 140mm corsair running slow or the 120mm
    GentleTyphoon running faster? And the softwares that monitor RPM shows that the GentleTyphoon is about 1770 / 1800 RPM and not 1850 RPM as the box describes, even without PWN because it`s only 3 pins, this difference is normal?

    And the difference from cpu_fan PWM 1100 and opt_fan 900 when idle is normal too as when it`s at full speed both goes the same speed?

    Thanks again guys

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    Default Re: Help with MB fans connectors and other little doubts

    OK that doesn't tell me which fans you are using on the radiator. I have a feeling they are not a match pair of fans. If they are not the same exact fans then one will have a lower minimum then the other.

    Speed isnt everything. 120mm fans usually have to spin faster to match the air movement of a 140mm running at a lower RPM. So keep the 140mm on the back of the case. Use the 120mm as intake or in the center of the case to move air inside.

    1850rpm is the max when supplied with the right conditions. The fan header my not be strong enough to push the fan to its max. If you ran it off a fan controller or off the PSU it would hit the 1850.
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