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Thread: GA-790XTA-UD4 fan control




  1. #1
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    Default GA-790XTA-UD4 fan control

    Hi,
    I have some questions about this motherboard and fan rpm regulations? I've noticed that there aren't many options to control fan rpm - actually I can only set to auto or max rpm for cpu...
    Is there possibility to manually manage each fan rpm in bios? I think there isn't but I needed to ask
    CPU is PII 955BE with CM 212+
    Would I make my problems disappear with fan controller - something like Zalman mfc1 plus?
    Thanks

  2. #2
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    Default Re: GA-790XTA-UD4 fan control

    There isn't an option, but in the power page of the BIOS you should have Voltage or PWM to select for smart fan control, if it's disabled then it will run 100% all the time

    Be sure you are using the latest BIOS too, in case you have set voltage or PWM and it still is 100%, there might be a BIOS bug.

    Yes, a fan controller would allow you to adjust the fan to whatever speed you wanted.

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    Default Re: GA-790XTA-UD4 fan control

    Thank you for reply.
    I do have pwm and voltage regulations but there is also a third one - I believe it's auto (not sure for name) and that's the one I use. In this mode cpu fan speed is controlled automatically depending on cpu temperature and that's fine with me (cm 212+ usually runs at 30%, about 600rpm, temp. in idle 35C and max tested with linx is about 60%/1200rpm at 55 C max. with minimum noise).
    Main reason for manual bios fan speed settings is for chassis fans. I use Silverstone Precision Series PS05 and there are 5 fans (not counting cpu cooler fan) which I need to regulate. I use Silverstone FN 121 fans. On motherboard I have two 4pin and two 3pin connectors (the rest of the fans are connected to power supply). Only fans connected to 4 pin connectors have auto speed regulation, the rest run at max speed...
    Those "rest" I need to regulate and as you said and I already (unfortunately) knew, I need fan controller...
    I'm not using latest bios (f4a) because it's still beta version - I use f3.
    I do have question about pwm or voltage regulations: if I use one of those, how, actually, are fans being controlled? I have these 3 options only for cpu fan control (and that's the only fan I can control in the matter of speaking because there aren't manual speed settings) and as I use third option (which was selected by default) I never tried other two...
    Last edited by Grozdan; 03-29-2011 at 04:23 AM.

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    Default Re: GA-790XTA-UD4 fan control

    Ya, you should have Voltage, PWM and Auto. They are all "Auto" in a sense that they control the fan automatically based on temps, only Disabled will be full speed all the time no matter the temps.

    Yep, sounds like you need a fan controller for sure! Voltage or PWM both control the fan speed varied by temp, using voltages in steps. Voltage is increments, and PWM is phase regulated voltage, both are pretty similar the PWM is just a more smooth transition between speeds is all.

    PWM fans have 4 pins, 3 pin are voltage fans.

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    Default Re: GA-790XTA-UD4 fan control

    I use a Windows software program called Speedfan 4.41 to regulate my fan speeds. It works great for my motherboard. I can run them at 100% or 0% or anything in between. I can click a checkbox which sets the program to automatic Then go into automatic settings and adjust temperatures for both system and cpu to desired temps and speeds. It only regulates the case exhaust fan and the cpu heatsink fan because my motherboard only has two 3 or 4 pin fan controllers. I can set it and forget it When the cpu or system starts getting above the desired temperatures. Speedfan 4.41 increases the speed of the fans. The program takes a little to set up. I clicked on the info tab then the Get Config tab click on the url above ticket. This sent me to a web page asked me to sign up email verify first. After email verified. Then I just tried again for some reason I lost the first page so I Get Config again and click on the url above ticket then verify username and password. Then I click next step and I highlight motherboard manufacturer and model. Then highlight an available like GA-MA790FX-DQ6 click next step get configuration Now I select uploded form whoever it's from a list. Then I click get configuration. At this point I look for the bold numbers like 531369 Caution If you decide to do this just marking these numbers down wont work. It has to be done as instructed. The web page must be open with your username and password. Also do not try to copy and paste it's not inserting the ticket correctly. Just type in the ticket number that you pull from your web page. I already tried those shortcuts and none of them worked. After I insert the correct tickt number I restart the speedfan program. WOO! HOO! The fans speed up. Then I configure my auto settings. As I said it took a little to get the fans and temperatures where I wanted them but it works great. You can also send a report or make a request to them through the web page and the program.
    Mostly I minimize it and allow it to hide.
    Last edited by artdrivers; 03-30-2011 at 06:49 AM.
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    Default Re: GA-790XTA-UD4 fan control

    I tried Speedfan (latest version) and it didn't work, but I didn't know I had to do all those steps
    I didn't bother much, though, because my motherboard wasn't supported (couldn't find it anywhere)... I just installed program and tried some settings which didn't work so I uninstalled it. I'll try your way and see what happens
    I already used bunch of programs, including Easy Tune which was great for cpu cooler fan speed management, but none of them worked ( I honestly believe that all those installations ruined my Windows and will have to install new one)!
    I contacted you as my last resort. Don't get me wrong, I only ask for help if I did everything it could be done on my own but wasn't enough...
    I'll try Speedfan again but I kinda like an idea of having a fan controller - it would look cool
    Once again thanks for everyting!

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    Default Re: GA-790XTA-UD4 fan control

    I'm using the Auto Fan Control function with a 3 pin are voltage fan. (ZALMAN CNPS9700 LED 110mm 2 Ball CPU Cooler)

    My CPU idles at about 41C and the fan is going at 1781 RPM. Is there any way to fine tune this? Preferably in the bios. I'd like it to run at 1200~RPM @ 41C.


    Motherboard: GIGABYTE GA-EX58-UD4P w/lastest Stable Bios. Does anyone know if the beta bios has more fan options?

    Edit: I just updated to the lastest beta bios. (GA-EX58-UD4P - F14q )

    No additional auto fan control that I see. I have a completely new layout.
    Last edited by robz360; 10-14-2011 at 01:07 PM.

  8. #8
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    Default Re: GA-790XTA-UD4 fan control

    which 3pin mb socket you using? some are rated differently in volts so some run faster than others,i think sys fan 1 is slower
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