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Thread: MSI Self Cleaning GPU Fans

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    MSI Self Cleaning GPU Fans

    Anyone else spotted this vid kicking around, shamelessy nicked it from another forum lol.

    http://www.youtube.com/watch?v=rUuAG...layer_embedded

    Basically the fans spin backwards for 30secs before returning to normal to remove the dust, sadly ends up in your case but a good airflow should keep the dust build up to a minimum.

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    DILLIGAF GoNz0's Avatar
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    Re: MSI Self Cleaning GPU Fans

    tried, tested and failed on a range of projectors i often go and repair. laboratory dust isnt like real dust

    they dont spin for 30 seconds though, just kick into reverse for a few seconds after shut down.

    i guess time will tell with these?

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    Re: MSI Self Cleaning GPU Fans

    Dust tends to cake so just spinning a fan backwards doesn't do much to it, it's more for fluff, but having dust filters on your case will keep fluff out anyway.
    The dust in that video is lose so the fan spinning in ether direction would of blown it out.

    making the fan blades out of thermo colour changing plastic is a very funky idea though.

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    Re: MSI Self Cleaning GPU Fans

    Looked like powder in the video, not dust.

    Also pointless for people who leave their PC on 24/7 - it needs a "sleep & clean" mode so the GPU can partially shut down, wait a moment for temps to lower, then do a high-speed reverse spin. Perhaps also needs a vacuum cleaner attachment to suck the dust into a container or outside the case.

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    Banhammer in peace PeterB kalniel's Avatar
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    Re: MSI Self Cleaning GPU Fans

    My last couple of ATI cards have had an anti-dust spin up near the start of the boot process/getting into windows - just to blow through any dust that might have settled on the fins since last used. No reversing though as far as I can tell, just 100% fan for a few seconds.

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    Re: MSI Self Cleaning GPU Fans

    I think it's a great little ideaand i hope it works. Normally when i clean my computer i just use that compressed air in a can stuff and blast the bust away

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    Re: MSI Self Cleaning GPU Fans

    Quote Originally Posted by kalniel View Post
    My last couple of ATI cards have had an anti-dust spin up near the start of the boot process/getting into windows - just to blow through any dust that might have settled on the fins since last used. No reversing though as far as I can tell, just 100% fan for a few seconds.
    Servers have done something similar for years now. My ML330 G6 sounds like an eircraft taking off when it initially powers on. Seriously - you can hear it through walls it's so loud!
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    Re: MSI Self Cleaning GPU Fans

    Quote Originally Posted by kalniel View Post
    My last couple of ATI cards have had an anti-dust spin up near the start of the boot process/getting into windows - just to blow through any dust that might have settled on the fins since last used. No reversing though as far as I can tell, just 100% fan for a few seconds.
    Quote Originally Posted by badass View Post
    Servers have done something similar for years now. My ML330 G6 sounds like an eircraft taking off when it initially powers on. Seriously - you can hear it through walls it's so loud!
    I didn't think this was an anti-dust spin up, but rather because the devices BIOS either hadn't been boot strapped to the point of the fan mangement kicking in, or because the device wasn't in a state where it could decide it was 'safe' for the fan to spin down (inaccurate temperate reading at startup for example - You need a sample of temperate over a period to work out how hot the device actually is, a single snapshot is useless)

    It's been a while since I looked at nVidia BIOS hacking, but it certainly used to be the case that the card was set at a set percentage at the hardware level by default, and then once the BIOS tables had been read and an accurate temperate delta was known, it would alter the speed. I'd be surprised if other devices didn't follow the same logic.

    For example - holding in the reset button on a machine will usually not allow the system to complete the POST stage, which doesn't allow the GPU (or whatever) to be strapped correctly, hence it's fan will spin up full indefinitely.

    Thoughts?
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    Banhammer in peace PeterB kalniel's Avatar
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    Re: MSI Self Cleaning GPU Fans

    Quote Originally Posted by Agent View Post
    I didn't think this was an anti-dust spin up, but rather because the devices BIOS either hadn't been boot strapped to the point of the fan mangement kicking in, or because the device wasn't in a state where it could decide it was 'safe' for the fan to spin down (inaccurate temperate reading at startup for example - You need a sample of temperate over a period to work out how hot the device actually is, a single snapshot is useless)

    It's been a while since I looked at nVidia BIOS hacking, but it certainly used to be the case that the card was set at a set percentage at the hardware level by default, and then once the BIOS tables had been read and an accurate temperate delta was known, it would alter the speed. I'd be surprised if other devices didn't follow the same logic.
    Sounds like a decent explanation, I'll take that. Funny that it takes different lengths of time for different cards (my 1950 did it on boot, my 4870 waits until I've logged in before ramping UP the speed for a bit before going back down. Drivers probably).

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