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Thread: How to keep a GTX470 Cooler

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    Smile How to keep a GTX470 Cooler

    I just bought a GTX470 for gaming and for BOINC Cuda work. When it is fully loaded (which is all the time), it is too hot to touch but the nVidia Control Panel reports that the fan is normally at 61%. Sure, it is possible to crank it up higher, but the noise level is too much and unless it was set to 100%, it might cause problems if ever 100% cooling really is required during summer months.
    MY SOLUTION
    Get a fan from an old HDD cooler (you know, the two fan types that have thin fans of about 60mm) and strap it to the side of the graphics card using tie wraps.

    I measured the airflow from the back of the GTX470 with and without the additional fan. The anemometer I used would not lie flat against the back of the GTX 470, so the readings may not be absolutely correct, but they do give relative results):-
    GTX470 fan at 59%, no extra fan, airflow = 1.7m/s
    GTX470 fan at 59%, extra fan fitted, airflow = 2.0m/s
    GTX470 fan at 100%, no extra fan, airflow = 4.3m/s
    GTX470 fan at 100%, extra fan fitted, airflow = 4.5m/s
    Fan speed as reported by Control panel when set to auto = 61%
    Fan speed as reported by Control panel when set to auto, extra fan present = 55%

    A standard 80mm fan also works but is a bit trickier to line up correctly.

    CONCLUSION
    - The extra fan adds some airflow at all GTX470 fan settings.
    - The extra fan must be making the GTX470 run cooler because the onboard fan speed is lower when fan control is set to auto.

    Comments welcome......
    Last edited by Greenbandit; 11-05-2010 at 09:40 AM.

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    Senior Member roorooroo's Avatar
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    Re: How to keep a GTX470 Cooler

    Cool What does EVGA precision (or similar monitor) say the temp difference is?

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    Banhammer in peace PeterB kalniel's Avatar
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    Re: How to keep a GTX470 Cooler

    You have to be careful you're not forcing the card's fan around in that set up - doing so would create additional wear at best, and at worst start generating voltage from the fan motor.

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    Re: How to keep a GTX470 Cooler

    Quote Originally Posted by kalniel View Post
    You have to be careful you're not forcing the card's fan around in that set up - doing so would create additional wear at best, and at worst start generating voltage from the fan motor.
    =very bad for your card.



    How about


    or

    Considering what these new cards are like I'm surprised know one has made LN2 pots for them yet.

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    Re: How to keep a GTX470 Cooler

    Quote Originally Posted by roorooroo View Post
    Cool What does EVGA precision (or similar monitor) say the temp difference is?
    With an external ambient of +20°C (but the PC is on a corner which I know is bad for cooling) and the 470's fan on auto, and using a GPUGRID workunit to (CUDA) load the GPU to a constant 70%, I get 78°C with extra fan on (internal fan set to auto runs at 50%) & 86°C with extra fan off (internal fan increases to +56%). 8°C cooler isn't much, but it is 8°C better.

    Quote Originally Posted by kalniel View Post
    You have to be careful you're not forcing the card's fan around in that set up - doing so would create additional wear at best, and at worst start generating voltage from the fan motor.
    It is not that powerful that it blows the internal fan around and I have never seen the internal fan run at less than 40% when set to auto, but I do take the point about generator and back-emf effects being a potential problem.

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    Moosing about! CAT-THE-FIFTH's Avatar
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    Re: How to keep a GTX470 Cooler

    Quote Originally Posted by Greenbandit View Post
    Comments welcome......
    Not use it??

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    Re: How to keep a GTX470 Cooler

    Quote Originally Posted by CAT-THE-FIFTH View Post
    Not use it??
    Yeah, it's not exactly an engineering work of art.

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    Re: How to keep a GTX470 Cooler

    Have you tried re-routing the cables in your case? Also I would try optimising the airflow in your case too. If you have a clearer airflow to the graphics card it should help.

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    Smile Re: How to keep a GTX470 Cooler

    At the risk of necro-ing an old thread.......

    I now have a much better solution. Fit a total of 1x 80mm & 3x 120mm fans blowing into the case & install MSI Afterburner & do a custom fan profile. Cool

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    Re: How to keep a GTX470 Cooler

    Just killed the card. With it fitted, the PC will not even reach the BIOS screen, it just beeps once & locks with a black screen.

    It's upgrade time.

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    F.A.S.T. Butuz's Avatar
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    Re: How to keep a GTX470 Cooler

    Hehe you're gonna love the modern day style of GFX card cooling out with the old leaf blower style and in with something like MSI twin frozr which is near silent on modern 6xx series cards.

    Yum.

    Butuz

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    Re: How to keep a GTX470 Cooler

    Quote Originally Posted by Butuz View Post
    Hehe you're gonna love the modern day style of GFX card cooling out with the old leaf blower style and in with something like MSI twin frozr which is near silent on modern 6xx series cards.

    Yum.

    Butuz
    Agreed , the twin fan + heat pipe cooler on the Gigabyte card doe a really good job of keeping it cool, even when run at 100% for hours at a time by BOINC.

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