Modifying fan settings in the VGA BIOS

Discussion in 'Mac Pro' started by sekrit, Feb 10, 2015.

  1. sekrit, Feb 10, 2015
    Last edited: Feb 10, 2015

    sekrit macrumors newbie

    Joined:
    Feb 8, 2015
    #1
    I installed a nVidia GT 640 1024 DDR5 into a Mac Pro 3,1. I don't have any plans for overclocking or gaming. But the stock Nvidia fan is noisy even at idle use. Card only has a two pin power cable to the fan.

    Can I edit the BIOS fan settings and make it run at a slower speed? Settings in the BIOS for the fan adjustment is Min 16 and Max 25. I am not sure what these settings mean. How do I make the fan run slower at idle?

    Thanks
     
  2. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    Macs don't have Bios,, they use EFI and to my knowledge that's not accessible.
     
  3. sekrit thread starter macrumors newbie

    Joined:
    Feb 8, 2015
    #3
    Sorry if my post was not clear enough. I was asking about modifying the VGA BIOS, not MAC.
     
  4. lowendlinux Contributor

    lowendlinux

    Joined:
    Sep 24, 2014
    Location:
    North Country (way upstate NY)
    #4
    last time I modded a two pin I soldered a Zallman rheostat fan controller to it.
     
  5. sekrit thread starter macrumors newbie

    Joined:
    Feb 8, 2015
    #5
    Thanks pal! Installed Zalman fan speed controller and the noise is gone even at the highest speed rating. Card idles at 46C.
     

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