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The Cause for Poor SLI/Crossfire in Vista?

post #1 of 32
Thread Starter 
http://www.theinquirer.net/default.aspx?article=41121

Quote:
IN RECENT months, the amount of criticism that both Nvidia and ATI received for their respective multi-GPU concepts was just unbearable for their poor PR folk, the wee lambs.

As it turned out, Nvidia/ATi were not the only guilty parties in the whole case, but Windows Vista was implicated, too. Microsoft just posted an update for both 32- and 64-bit versions, fixing issues where operating system would not pass instructions for the 2nd GPU to the driver, meaning SLI/CrossFire would effectively work as a single chip cards.

So, Nvidia and AMD could have done whatever they liked, and their 2GPU systems would just not work. If you're running SLI or CrossFire system and Windows Vista, you should not think twice about this one… Windows Vista, a delayed operating system nightmares are created of. µ
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post #2 of 32
I don't remember any issues with Windows XP & early SLi modules.
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post #3 of 32
Thread Starter 
The hotfix for SLI/Crossfire:

http://support.microsoft.com/kb/936710
On a Windows Vista-based computer that has multiple graphics cards (GPUs), the computer does not use the secondary GPU
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post #4 of 32
http://thehotfixshare.net/download/i...936710-x86.msu

http://thehotfixshare.net/download/i...936710-x64.msu



Windows 32bit Hotfix on top and 64bit Hotfix on the bottom. Since MS does not have a download on their site and you must contact them, for those who are lazy I have included links to the versions they need.
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post #5 of 32
If the hot-fix was needed to fix this issue, how was there even a difference in DX 10 SLI performance vs single card performance?
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post #6 of 32
For some reason I am not surprised that this is Microsoft's fault...
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post #7 of 32
Quote:
Originally Posted by DuckieHo View Post
The hotfix for SLI/Crossfire:

http://support.microsoft.com/kb/936710
On a Windows Vista-based computer that has multiple graphics cards (GPUs), the computer does not use the secondary GPU
Gimme benchmarks at last!!!!!!!!!
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post #8 of 32
Quote:
Originally Posted by Walk_this_way View Post
If the hot-fix was needed to fix this issue, how was there even a difference in DX 10 SLI performance vs single card performance?
Now you're catching on
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post #9 of 32
WOW! Tell Murlocke FAST! He'll crap his pants!

SLI'd 8800GTX's and Vista, I think he runs, which has never been true SLI before this patch.

GET ON IT AND GET SOME NEW BENCHIES!
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post #10 of 32
Alas the first video driver problem that was actually vistas fault.. oh noes

Glad they fixed it.
    
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