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Please help me with what is probably a simple issue with SLI

post #1 of 19
Thread Starter 
Got 2 GTX 970s both EVGA one SC one SSC SLI bridge connected (when I had it on the connector towards the PCIe power it gave me the no bridge pop up but no option to enable one the connector towards the display connectors no pop up still no option to enable.
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Electric Blue
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post #2 of 19
Quote:
Originally Posted by Tristanguy1224 View Post

Got 2 GTX 970s both EVGA one SC one SSC SLI bridge connected (when I had it on the connector towards the PCIe power it gave me the no bridge pop up but no option to enable one the connector towards the display connectors no pop up still no option to enable.

Have you made sure that the model #'s are compatible?

http://www.evga.com/support/faq/afmmain.aspx?faqid=59534

Also, are they Best Buy models?
post #3 of 19
Thread Starter 
Quote:
Originally Posted by blaze2210 View Post

Have you made sure that the model #'s are compatible?

http://www.evga.com/support/faq/afmmain.aspx?faqid=59534

Also, are they Best Buy models?


No Best Buy models both bought at microcenter. I'm so mad right now..... can I tell without pulling the cards?
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Electric Blue
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post #4 of 19
Quote:
Originally Posted by Tristanguy1224 View Post

No Best Buy models both bought at microcenter. I'm so mad right now..... can I tell without pulling the cards?

For the serial #'s, you can look at either the boxes for the cards, or the stickers on the back of the PCB of the card. For EVGA, there should be a rectangular sticker on the backside of the card.
post #5 of 19
Thread Starter 
Quote:
Originally Posted by blaze2210 View Post

For the serial #'s, you can look at either the boxes for the cards, or the stickers on the back of the PCB of the card. For EVGA, there should be a rectangular sticker on the backside of the card.

Awesome I'll do that for now though I found a workaround it's called differentsli anyway it let me enable it so now I'm gonna test it
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Electric Blue
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post #6 of 19
Quote:
Originally Posted by Tristanguy1224 View Post

Awesome I'll do that for now though I found a workaround it's called differentsli anyway it let me enable it so now I'm gonna test it

Nice!! Let me know if it works out for you. biggrin.gif

By the way, I love the fact that you were proactive about finding a solution. That's how issues get resolved. thumb.gif
Edited by blaze2210 - 6/15/16 at 7:56pm
post #7 of 19
Thread Starter 
Quote:
Originally Posted by blaze2210 View Post

Nice!! Let me know if it works out for you. biggrin.gif

By the way, I love the fact that you were proactive about finding a solution. That's how issues get resolved. thumb.gif

IT WORKS!!!!!!!!

Conclusions.
1. Works just as well as SLI normally would (Nvidia guy on forum claimed 40%-60% performance drop compared to correctly working SLI

2. I need to get a modded BIOS for my second card because it's got an almost identical ASIC quality to my first 77.6%(GPU1) and 76.8%(GPU2)

3. Rise of the Tomb Raider seems to scale VERY well GTA V works well but seemed to double video memory claimed I had 8GB and was using almost all of it when it should've been 4GB and using almost all of it.... idk on that one
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Electric Blue
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post #8 of 19
Quote:
Originally Posted by Tristanguy1224 View Post

IT WORKS!!!!!!!!

Conclusions.
1. Works just as well as SLI normally would (Nvidia guy on forum claimed 40%-60% performance drop compared to correctly working SLI

2. I need to get a modded BIOS for my second card because it's got an almost identical ASIC quality to my first 77.6%(GPU1) and 76.8%(GPU2)

3. Rise of the Tomb Raider seems to scale VERY well GTA V works well but seemed to double video memory claimed I had 8GB and was using almost all of it when it should've been 4GB and using almost all of it.... idk on that one

Sounds like some good results, I'm glad it worked out! I noticed the same thing on GTA V, and didn't notice any issues when I put the settings above the 4GB.

If you have a modded BIOS for your 1st card, you could just copy all of the settings into the BIOS for the 2nd card - just make sure you put the right numbers in the right place. If that seems daunting to you, let me know and I'll help you out.
post #9 of 19
Thread Starter 
Quote:
Originally Posted by blaze2210 View Post

Sounds like some good results, I'm glad it worked out! I noticed the same thing on GTA V, and didn't notice any issues when I put the settings above the 4GB.

If you have a modded BIOS for your 1st card, you could just copy all of the settings into the BIOS for the 2nd card - just make sure you put the right numbers in the right place. If that seems daunting to you, let me know and I'll help you out.

I appreciate the help but since they are different cards I don't wanna go copy crazmo and screw something up lol I DID get them working in SLI begrudgingly. I had already opened up both BIOSes and was starting to do just that when I noticed a few differences like on the voltage tables and stuff.... not 100% confident modding my own BIOS.

If you for sure know what you're doing and wouldn't mind helping out that would be great.

GM204PWR.zip 138k .zip file -First GPU with modded BIOS (EVGA SC ACX2.0 w/ 2x 6-pin)

GTX970SSCStock.zip 136k .zip file -Second GPU STOCK (EVGA SSC ACX2.0 w/ 1x 8-pin 1x 6-pin)

Also side question depending on max clocks and voltage if I can get it as high or higher than the first card should I move the SSC to be primary?
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Electric Blue
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post #10 of 19
Since they're from the same manufacturer, the risk should be rather low. Also, since you've posted the stock ones here, you know you have backups in case anything goes wrong. biggrin.gif

I do actually have quite a bit of modding experience for the 970 (made at least 100 different BIOS roms for my own card, plus a few for other people), and I even own an SSC currently. I'll tinker with those BIOS files and post them when I'm done. thumb.gif
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