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Second GTX 570 in SLI won't auto-adjust voltage, stays high

post #1 of 4
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With SLI disabled, both cards will go down to .91v idle. With SLI enabled, the second card will stay at 1.01v regardless of GPU usage. Is there any way around this? Perhaps it's the drivers I'm using (258.38, latest Beta pre-BF3 release, as the post-release drivers have horrible performance on BF3).
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Orion IV
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post #2 of 4
Go into MSI Afterburner Settings and see if the box is ticked for "Synchronize settings for similar graphics processors"

If it's ticked, Try un-ticking it and seeing what your voltages are.

gpuxj.jpg

Edit: Also make sure "Force constant voltage" is un-ticked
Edited by gumbie - 11/8/11 at 8:16pm
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post #3 of 4
What gumbie said. And make sure there's no Auto 3d profile being applied in AB either.
    
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post #4 of 4
Try Gumbie's suggestion but this is not a guarantee because:-
I am using GTX570 SLI with 285.62. With SLI enabled, both cards do downvolt. One goes from 1.01v to 0.955v while the other goes from 1.04v to 0.908v. And interestingly, I have 'Synchronize settings for similar graphics processors' checked and 'Force constant voltage' unchecked.

Which one of the 2 cards does not downvolt? The card closer to the CPU and with 2 monitors connected? Or, the other card?
I wonder if the card that does not downvolt also does not downclock?

(For a 3-monitor setup, two monitors are connected to one card (ie the one closer to the CPU) while one monitor is connected to the another card. As you probably know, a card with 2 monitors connected does not downclock because it is driving more than 1 monitor.)
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