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GTX680 SLI PCIE3.0

post #1 of 7
Thread Starter 
Hi , i have a question how come i got severe stuttering and freeze when i use registry hack from pcie2.0 to3.0? i have gtx680 sli by the way and i have tried reinstall the driver many times but still gaves me bad screen freeze after i swap to pcie3.0 , but if i just run single gtx680 pcie3.0 works smooth but if i switch to sli mode problem exist so right now i just run single 680 with pcie3.0 frown.gif does anyone know how to fix it? thanks
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CPUMotherboardGraphicsRAM
I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
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post #2 of 7
Thread Starter 
anyone have idea ??
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I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
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CORSAIR AX1200 COOLERMASTER HAF X-942 
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My System
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CPUMotherboardGraphicsRAM
I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
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CORSAIR AX1200 COOLERMASTER HAF X-942 
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post #3 of 7
The word "hack" should be the tip-off there. It's not officially supported because it doesn't work right on all motherboards (timing issue, if I remember correctly) - sounds like yours has an issue. Just run it in PCIe 2.0 mode - there isn't any meaningful performance loss in 2.0 mode.
post #4 of 7
Thread Starter 
Quote:
Originally Posted by Forceman View Post

The word "hack" should be the tip-off there. It's not officially supported because it doesn't work right on all motherboards (timing issue, if I remember correctly) - sounds like yours has an issue. Just run it in PCIe 2.0 mode - there isn't any meaningful performance loss in 2.0 mode.
. Timing issue? You mean? I have someone have the same mobo and cpu with me and same brand of video card just different model , mine is orignal evga gtx680 black color and he has signature one but he can run both card fine with pcie3.0 and i cant , it might be the cards problem? And i am sorry to use the non proper word
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
PowerCase
CORSAIR AX1200 COOLERMASTER HAF X-942 
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My System
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CPUMotherboardGraphicsRAM
I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
PowerCase
CORSAIR AX1200 COOLERMASTER HAF X-942 
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post #5 of 7
There is no difference in PCI-E 2.2 vs. PCI-E 3.0 in performance right at the momment with the PCI-E 3.0 cards.
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SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
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post #6 of 7
Quote:
Originally Posted by teichu View Post

. Timing issue? You mean? I have someone have the same mobo and cpu with me and same brand of video card just different model , mine is orignal evga gtx680 black color and he has signature one but he can run both card fine with pcie3.0 and i cant , it might be the cards problem? And i am sorry to use the non proper word

If I remember correctly, there was an issue where some X79 motherboards did not remain in tolerances for the PCIe 3.0 timing signals, and so Nvidia disabled PCIe 3.0 on X79 boards. Forcing the cards to run out of tolerance could result in the issue you are seeing (or it could be something else). You'd think all the motherboards would be the same, but who knows. Does it work properly in PCIe 2.0 mode? If so, just leave it there as there is no performance loss.
post #7 of 7
Thread Starter 
Quote:
Originally Posted by Forceman View Post

If I remember correctly, there was an issue where some X79 motherboards did not remain in tolerances for the PCIe 3.0 timing signals, and so Nvidia disabled PCIe 3.0 on X79 boards. Forcing the cards to run out of tolerance could result in the issue you are seeing (or it could be something else). You'd think all the motherboards would be the same, but who knows. Does it work properly in PCIe 2.0 mode? If so, just leave it there as there is no performance loss.

I am still doubting the motherboard , because i have single card running pcie3.0 without any issue , but when i run SLI it just freeze and crash maybe i will buy the card as my friend's model and give a try rolleyes.gif
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
PowerCase
CORSAIR AX1200 COOLERMASTER HAF X-942 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
PowerCase
CORSAIR AX1200 COOLERMASTER HAF X-942 
  hide details  
Reply
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