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[CF]HD 6950 2GB weird freezes while gaming

post #1 of 7
Thread Starter 
hey guys.
well i am experiencing a weird problem since i got those cards i am using 2x hd 6950 2gb DCII..when i am gaming i am having like little blast freezing every 10 sec....like screen is freezing for 0.1 sec and goes on...what the hell is this?this is really annoying...i didn't overclock my cards either.
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post #2 of 7
Quote:
Originally Posted by someonewhy View Post

hey guys.
well i am experiencing a weird problem since i got those cards i am using 2x hd 6950 2gb DCII..when i am gaming i am having like little blast freezing every 10 sec....like screen is freezing for 0.1 sec and goes on...what the hell is this?this is really annoying...i didn't overclock my cards either.

If you are using Afterburner try disable ULPS.

1. Go to regedit (start > search programs and files > "regedit").
2. In drop down menu: find file > type "enableulps".
3. For ALL instances (keep pressing F3) change the "1" value to a "0".
4. Reboot PC.

If that doesn't fix it and both cards are overclocked, either lower the core/memory clocks or increase the voltage or combination of both. I believe you need Asus Smart Doctor to have voltage control.

Under settings, enable "Overclock Range Enhancement" and it increases the CCC max core clock to 1620 MHz and memory to 2500MHz and you have the voltage control here.
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post #3 of 7
Thread Starter 
I did what you said and like i said before i didn't overclock my cards they are on stock settings.
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post #4 of 7
Quote:
Originally Posted by someonewhy View Post

I did what you said and like i said before i didn't overclock my cards they are on stock settings.

I guess you have increase the core voltage too?
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ケンジ
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post #5 of 7
Thread Starter 
Nop why should i do it?i didn't overclock my gpu's..
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post #6 of 7
Thread Starter 
I disabled ULPS thingy and it works good now!!thanks alot can you explain me what is ulps?
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post #7 of 7
Quote:
Originally Posted by someonewhy View Post

I disabled ULPS thingy and it works good now!!thanks alot can you explain me what is ulps?

ULPS is Ultra Low Power Saving or Power Tune/Power Play by AMD. Easy example of this function is, when the second GPU in crossfire configuration not doing anything such as playing game, it will downclock to sleep state to save power. Also, for the primary GPU when not playing game and for desktop/browsing etc, it will downclock to 2D instead of 3D clocks.

You only need to do this when using Afterburner. You can also disable the "enable low level hardware access" in Afterburner if you don't want to disable ULPS. But the trade off is, it will not show the second GPU idle state and there is no voltage tweak in case you need it by disabling this feature in Afterburner.

There's no workaround that really work at the moment other than the 2 options mentioned above. The only option is to edit the voltage in BIOS and not using Afterburner for that purpose. Simply put, AMD drivers are not designed for Afterburner and Afterburner isjust trying to access the driver wherever possible to provide this monitoring function. It's nobody fault as they are not made for each other. Unlike Nvidia drivers which are written with different coding has no effect by Afterburner accessing its Power States in SLI configuration.
ケンジ
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Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
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ケンジ
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CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
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