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Is there a way to disable VRAM?

post #1 of 15
Thread Starter 
I have a 1GB 460 and a 768MB SC 460 (it was supposed to be a 1GB, oh well.) Is there any way to disable that extra 256MB of VRAM to allow SLI? I'd try to trade it off, but I don't have the 30 rep I need to post in the marketplace. Is there anything that might work?
post #2 of 15
Quote:
Originally Posted by OddGusta View Post

I have a 1GB 460 and a 768MB SC 460 (it was supposed to be a 1GB, oh well.) Is there any way to disable that extra 256MB of VRAM to allow SLI? I'd try to trade it off, but I don't have the 30 rep I need to post in the marketplace. Is there anything that might work?

It will automatically turn it off ; this is how SLI works
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post #3 of 15
Thread Starter 
Does it do that in 314.22 on Windows 8? My PC always just cuts the signal to the second monitor, and the yellow exclamation mart appears next to the primary in Device Manager. I have to do a reinstall of the drivers to get it to stop. I've tried this several times. Maybe some older drivers would work?
post #4 of 15
Quote:
Originally Posted by OddGusta View Post

Does it do that in 314.22 on Windows 8? My PC always just cuts the signal to the second monitor, and the yellow exclamation mart appears next to the primary in Device Manager. I have to do a reinstall of the drivers to get it to stop. I've tried this several times. Maybe some older drivers would work?

oh. that's not good. SLI should by default work in SLI with 768mb of available ram.

i'll let others with more mismatched SLI Experience pitch in their advice
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post #5 of 15
Thread Starter 
Ok. Thank you for trying at least!
+Rep
post #6 of 15
yeah it's automatic 768mb, could be Windows 8 having a problem with the 460GTX vram mixing/limiting. if you got windows 7 see if it'll do the same on Windows 7, or you can try the final drivers for the 400/500 series and see if that fixes it. redface.gif
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post #7 of 15
Thread Starter 
I'm downgrading to 314.07, we'll see if it works then. I did try to install a SLI patch a few days ago, maybe it went wrong. Anyways, a fresh install should remove all traces of the patch.
post #8 of 15
I've never had GTX 460's before but if they are anything like the GTX 580's then you CANNOT SLI cards with different vrams, believe me I tried for countless hours over the last two days to try with my 1.5 GB and 3 GB 580's to no avail. There is a registry hack called CoolBits but it caused major system instability and made games completely unplayable.
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post #9 of 15
It should be automatic. If it isn't, it's because of windows 8 - in which case, good luck, I can't help :/
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post #10 of 15
Are you getting the exclamation mark while gaming? I was getting that a lot when I had 2 570s. My problem was not enough VRAM because I had just upgraded to a 1440p monitor.
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