Sli bridge size

omegarhn · Jan 14, 2018

Hi! I bought a Msi z270 gaming M7 and I want to setup two GTX-1080ti in the first and the center slot, but I don't know the right size for the Sli bridge...

jr9 · Jan 14, 2018

If the cards would be in slots 1 and 4 on that motherboard, you'd need a 3 slot SLI bridge. You would also want to get one that works best with your 1080Ti cards like the ones on this page https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1080-ti/ scroll down and select 3 slot. Other people like EVGA make premium SLI bridges as well.

omegarhn · Jan 14, 2018

jr9 :

As the cards would be in slots 1 and 4 on that motherboard, you'd need a 3 slot SLI bridge. To verify this if you measure from the first slot you want to use to the other slot you want to use, it should be about 61mm/6.1cm/2.4inch. You would also want to get one that works best with your 1080Ti cards like the ones on this page https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1080-ti/ scroll down and select 3 slot. Other people like EVGA make premium SLI bridges as well.

omegarhn · Jan 14, 2018

The GPUs that I'm going to use are the Aorus 1080ti with the EK Waterblocks, but I have seen that no any Sli bridge will fit with the Eksystem... Any suggestions?

jr9 · Jan 15, 2018

Yes those nVIDIA bridges due to their shape will touch the water blocks of the cards. You can try a 3rd party one such as this one:

https://www.evga.com/products/product.aspx?pn=100-2W-0026-LR

It is 60mm as well and doesn't have a ridiculous shape.

omegarhn · Jan 15, 2018

jr9 :

omegarhn · Jan 15, 2018

...well, I think that EVGA Sli bridge is my best option instead still waiting for the "EK Sli bridge" (who knows for how long)

jr9 · Jan 15, 2018

omegarhn :

nVIDIA kind of screwed EK over with that design and they released it just after EK launched that kit if I remember. Some people have "solved " this issue by prying the cover off the nVIDIA HB bridge and trimming some of the board at the corner so it fits... Doesn't look the greatest but works.

EK is still worth though really is amazing when it's finished. I still am hoping to do a EK build on my next machine this year and the kits take a lot of the head scratching out of it.

omegarhn · Jan 15, 2018

jr9 :

omegarhn :

nVIDIA kind of screwed EK over with that design and they released it just after EK launched that kit if I remember. Some people have "solved " this issue by prying the cover off the nVIDIA HB bridge and trimming some of the board at the corner so it fits... Doesn't look the greatest but works.

EK is still worth though really is amazing when it's finished. I still am hoping to do a EK build on my next machine this year and the kits take a lot of the head scratching out of it.

omegarhn · Jan 15, 2018

I already made a research and the only place where I found the 1 slot EVGA Sli bridge was on EBay... This is a project too expensive for make a botched job. It's unbelievable!!!

jr9 · Jan 15, 2018

My bad, it seems that one part is unavailable now. Well thankfully there are a few other 60mm HB bridges that are

https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=60mm+bridge+sli&rh=i%3Aaps%2Ck%3A60mm+bridge+sli

Titanium 2 looks good. Thin and looks metal like the water blocks.

omegarhn · Jan 15, 2018

jr9 :

omegarhn · Jan 15, 2018

Do you think it would be the same performance? As I told you this is the most expensive project that I've ever built, and I'm trying to make it perfect...

jr9 · Jan 15, 2018

I think so. There isn't a massive amount of engineering that goes into these HB bridges. All they are is some wires and PCB in a nice looking enclosure. I'm not seeing any benchmarks for non nVIDIA SLI bridges compared to 3rd party ones but I'd be really shocked if there was a big difference. Worst case scenario they aren't that expensive so you could get an MSI one and use it until the EK or another nVIDIA one perhaps comes out as opposed to stalling the entire project over a small part that can be easily swapped out. The bigger red one with the dragon on it is 5k so that could be a better if you are going above 5k.

omegarhn · Jan 15, 2018

jr9 :

I think so. There isn't a massive amount of engineering that goes into these HB bridges. All they are is some wires and PCB in a nice looking enclosure. I'm not seeing any benchmarks for non nVIDIA SLI bridges compared to 3rd party ones but I'd be really shocked if there was a big difference. Worst case scenario they aren't that expensive so you could get an MSI one and use it until the EK or another nVIDIA one perhaps comes out as opposed to stalling the entire project over a small part that can be easily swapped out. The bigger red one with the dragon on it is 5k so that could be a better if you are going above 5k.

omegarhn · Jan 15, 2018

I still confused, cause each time that I see a Youtube video it says that it doesn't make any diference in performance the HB Sli bridge compared to the stock Sli bridge. So, in that case I'ld wasting my money in just a piece of beautiful plastic...?

jr9 · Jan 16, 2018

No idea what this Youtube video this is or what cards they tested. On SLI setups like 1070 x2 or 970 x2, you won't see as much performance gain with the HB bridge. With 1080 Ti x 2 at 4k and up you will definitely in certain applications. There is a real difference between HB bridges and cheap ribbon bridges on the high end (1080 GTX and up).

Here is a good article on it:

https://www.pcworld.com/article/3087524/hardware/tested-the-payoff-in-buying-nvidias-40-sli-hb-bridge.html

25% increase in performance on one particular game at 4k. If you are spending that much on GPU power I would get an HB bridge. I trust Gordon Mah Ung's hardware benchmarking a lot more than a Youtube channel. I've been reading his work since 2006 when he was at Maximum PC.

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