REG FIX for 3rd GPU/Octane doent detects my third video card

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REG FIX for 3rd GPU/Octane doent detects my third video card

Postby Curious guy » Wed Jul 07, 2010 12:13 am

Curious guy Wed Jul 07, 2010 12:13 am
Hi everyone:

I've recently bought a new computer (specs in my signature), which at first only had 2 GTX 470, I transfered octane to it and started rendering.

Everything ok until I intalled the 3º 470. My computer detects it good but octane doesn't show it in the device manager.

I've reinstalled octane and I change the registry fix to TdrDelay = 15 (shouldn't do anything anyway).

Some screenshots.

Device manager.png
PC device manager.png



Thanks


EDITED BY RADIANCE: Copied to resources forum and made sticky as this topic is very usefull.
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Re: Octane doent detects my third video card

Postby PhilBo » Wed Jul 07, 2010 2:14 am

PhilBo Wed Jul 07, 2010 2:14 am
I had the same issue. It's an NVIDIA driver issue that is easily fixed. It involves editing the registry, so only proceed if you are comfortable in working in the registry. Refractive Software will not be held liable for any issues associated with such editing. You assume all risks for attempting the following:

1) Start the registry editor (Start button, type "regedit" and launch it.)

2) Navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}

3) You will see keys for each video card starting with "0000" and then "0001", etc.

4) Under each of the keys identified in 3 for each video card, add two dword values
DisplayLessPolicy
LimitVideoPresentSources

Set each value to 1

5) Once these have been added to each of the video cards, shut down Regedit and then reboot.

Let me know how it works out.

Phil
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Re: Octane doent detects my third video card

Postby Curious guy » Wed Jul 07, 2010 3:02 am

Curious guy Wed Jul 07, 2010 3:02 am
PhilBo wrote:I had the same issue. It's an NVIDIA driver issue that is easily fixed. It involves editing the registry, so only proceed if you are comfortable in working in the registry. Refractive Software will not be held liable for any issues associated with such editing. You assume all risks for attempting the following:

1) Start the registry editor (Start button, type "regedit" and launch it.)

2) Navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}

3) You will see keys for each video card starting with "0000" and then "0001", etc.

4) Under each of the keys identified in 3 for each video card, add two dword values
DisplayLessPolicy
LimitVideoPresentSources

Set each value to 1

5) Once these have been added to each of the video cards, shut down Regedit and then reboot.

Let me know how it works out.

Phil


Yeah! It worked, Thanks a lot Phil. :D
One las thing Where do you get this information? I't kind of... useful. :mrgreen:
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Re: Octane doent detects my third video card

Postby mantra » Wed Jul 07, 2010 8:05 am

mantra Wed Jul 07, 2010 8:05 am
PhilBo, add this info to manual
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Re: Octane doent detects my third video card

Postby PhilBo » Wed Jul 07, 2010 10:12 pm

PhilBo Wed Jul 07, 2010 10:12 pm
This came from Mike at Cubix. It is on the list for the next manual revision.
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Re: Octane doent detects my third video card

Postby Curious guy » Thu Jul 08, 2010 3:16 am

Curious guy Thu Jul 08, 2010 3:16 am
PhilBo wrote:This came from Mike at Cubix. It is on the list for the next manual revision.

Oh, thougt it came from a specific page... thanks anyway. :lol:
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Re: REG FIX for 3rd GPU/Octane doent detects my third video card

Postby frafra » Tue Jul 27, 2010 4:56 pm

frafra Tue Jul 27, 2010 4:56 pm
Hello,
3 video card into the same system!!!

Thanks to share the exact configuration of your PC as I was looking for 4 video card (3 like yours + one fx 3800) and was unable to find a system that can hold it.

Thanks

Laurent
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Re: REG FIX for 3rd GPU/Octane doent detects my third video card

Postby radiance » Sun Oct 10, 2010 2:41 pm

radiance Sun Oct 10, 2010 2:41 pm
frafra wrote:Hello,
3 video card into the same system!!!

Thanks to share the exact configuration of your PC as I was looking for 4 video card (3 like yours + one fx 3800) and was unable to find a system that can hold it.

Thanks

Laurent


An ASUS WS class motherboard can seat 4 double length or 7 single length cards (depending on your case), and costs about 300 euros (in belgium, so it should be cheaper in the US i assume... ?)

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Re: REG FIX for 3rd GPU/Octane doent detects my third video card

Postby emresan » Wed Feb 09, 2011 9:06 pm

emresan Wed Feb 09, 2011 9:06 pm
will it works with 4 gtx 480 video cards?
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Re: REG FIX for 3rd GPU/Octane doent detects my third video

Postby teddyboy16 » Tue Dec 04, 2012 12:59 am

teddyboy16 Tue Dec 04, 2012 12:59 am
emresan wrote:will it works with 4 gtx 480 video cards?

I have a ASUS WS class motherboard and you should be able to fit four cards without a problem. You just have to make sure you have an adequate power supply.
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