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[EVGA]GTX 1080 only support 2-way SLI - But better SLI performance than before (With HB SLI bridge) - Page 42  

post #411 of 471
How does one go about getting this 'enthusiast key'? rolleyes.gif

As a 4-Way SLI user since the GTX-580 Classified days, this feels rather strange.
     
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post #412 of 471
Quote:
Originally Posted by Baasha View Post

How does one go about getting this 'enthusiast key'? rolleyes.gif

As a 4-Way SLI user since the GTX-580 Classified days, this feels rather strange.

Well, you're supposed to request it through their site, but right now, with information as of 17 hours 14 minutes ago (aka four five posts ago).... .....You can't until nVidia decides to allow people to unlock them.
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post #413 of 471
lol, they really removed this capability and scrambled their a$$ when people made a stink about it. that is painfully obvious to anyone who doesn't have their head up a corporate bunghole.
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post #414 of 471
I mean, what kind of locker could it be? Maybe just a keyword in registry like SLI=0 ?
post #415 of 471
Quote:
Originally Posted by fewness View Post

I mean, what kind of locker could it be? Maybe just a keyword in registry like SLI=0 ?

Given Nvidia's history on SLI control(I.E. Certification) for mainboards back in the day, one that was easily bypassed with a patch/hack. Who knows...
http://www.techpowerup.com/forums/threads/hypersli-enabling-sli-on-non-sli-motherboards.153046/

Edit: also Physx with ATI/AMD gpu as primary used to be overidden with hacked drivers IIRC
Edited by dagget3450 - 5/29/16 at 7:32pm
post #416 of 471
Quote:
Originally Posted by WhiteWulfe View Post

Well, you're supposed to request it through their site, but right now, with information as of 17 hours 14 minutes ago (aka four five posts ago).... .....You can't until nVidia decides to allow people to unlock them.

What that means is, technicians are still trying to make 3 and 4 way work well enough to make the key available. Lol
 
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post #417 of 471
Quote:
Originally Posted by Mhill2029 View Post

What that means is, technicians are still trying to make 3 and 4 way work well enough to make the key available. Lol

I thought it was marketing speak for "we'll get to it when we feel like it, why are you in such a rush to run something we clearly feel shouldn't be supported or even exist anymore".

Or something like that. But yeah, teased graphics cards, paper launch, increased price for reference cards and then the inability to secure a high bandwidth SLI bridge or use three and four way SLI until a pre-determined time that even they don't seem to be willing to decide upon.... Such a weird launch.
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post #418 of 471
Has this video been posted before? It is quite interesting:



The NVIDIA rep confirmed some of my suspicions. Basically, with me driving high resolution displays at high refresh rates, I haven't even been using the SLI bridges in my setups. All of the data has been going over my PCI-E bus. This explains why in my demanding scenarios, the differences in performance between 8x and 16x PCI-E were noticeable. This also explains why those that have tested with 1440p/60 Hz and below haven't seen much difference in PCI-E speed performance. The SLI bridge was utilized.

So now in theory, with the new HB SLI bridge will handle all traffic between the two cards and the PCI-E bus will only handle GPU to CPU communications, and not also GPU to GPU communications. Under this scenario, the benefit of having each GPU on it's own 16x PCI-E 3.0 bus will be much less critical. 8x may very well be about the same performance.

Also interesting to note, really only 2-way SLI is supported and 3/4 way SLI is just for bench-marking. Since going forward developers will have to be involved with SLI support and 3/4 way SLI setups being a incredibly small percentage, I highly doubt much 3/4 way support in the future for actual games.

I highly suspect that with the new HB SLI bridge and those running dual 8x slots for 2-way SLI, such as on a 1151 MB, will see a performance/smoothness boost if they run demanding display setups. thumb.gif

This also makes having X99 for 2-way SLI setups less warranted.
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post #419 of 471
Do we still need the new HB bridges if we're only buying our 3rd and 4th 1080 for epeen?
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post #420 of 471
Quote:
Originally Posted by BillOhio View Post

Do we still need the new HB bridges if we're only buying our 3rd and 4th 1080 for epeen?

HB bridges are only for 2 card sli.
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