zerajera
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Hi,
I have a X299 Dark motherboard and was hoping to eventually use 4 x EVGA GeForce GTX 1080 Ti FTW3 GPU's. I currently have three and I see it comes with a 3-Way SLi.
Can someone confirm it supports 4 x GPU's as I'm sure I saw that in it's specification sheet and if so where do I get a 4 way SLI?
Zera
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bdary
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Re: X299 Dark 4-Way SLi
2018/06/05 09:52:00
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You can see the spec sheet here > https://www.evga.com/products/pdf/151-SX-E299-KR.pdf The 2nd page here shows 4way SLI is possible with select CPU's (44 lane) only. You may need to buy a 4way SLI bridge if the accessory section is correct. Shows only a 3way bridge included. One side note, if it were me going with four GPU's, I would get the blower style cards due to how these will be sandwiched together on the board.
post edited by bdary - 2018/06/05 09:56:36
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_JoseR
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Re: X299 Dark 4-Way SLi
2018/06/05 14:43:32
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A few other things to note is that 3 and 4 way SLI is only supported on select benchmarks such as 3Dmark's firestrike but is not supported on actual games. https://www.evga.com/support/manuals/files/151-SX-E299.pdf page 100 goes into more detail on a few other things to consider when running 3 or 4-way sli on this this motherboard.
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zerajera
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Re: X299 Dark 4-Way SLi
2018/06/06 02:16:59
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bdary
You can see the spec sheet here > https://www.evga.com/products/pdf/151-SX-E299-KR.pdf
The 2nd page here shows 4way SLI is possible with select CPU's (44 lane) only. You may need to buy a 4way SLI bridge if the accessory section is correct. Shows only a 3way bridge included.
One side note, if it were me going with four GPU's, I would get the blower style cards due to how these will be sandwiched together on the board.
Yes my CPU has 44 lanes. What do you mean "blower type"? The EVGA GeForce GTX 1080 Ti FTW3 cards I have have three fans attached?
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zerajera
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Re: X299 Dark 4-Way SLi
2018/06/06 02:18:10
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EVGATech_JoseR
A few other things to note is that 3 and 4 way SLI is only supported on select benchmarks such as 3Dmark's firestrike but is not supported on actual games.
https://www.evga.com/support/manuals/files/151-SX-E299.pdf page 100 goes into more detail on a few other things to consider when running 3 or 4-way sli on this this motherboard.
Hi, Thanks for confirming that, but I understand games will and some do already support SLI?
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Y3didya
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Re: X299 Dark 4-Way SLi
2018/06/06 02:47:45
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Majority of games only support 2-Way-SLI and even that in a bad way, because most single cards of newer generations have more than enough power, so optimization is well, not so nice. He stated specifically that 4-way SLI and 3-way SLI are not officially supported by most games. Either you are lucky and it works or it doesn't. In my opinion, not worth the hassle, only if you want to benchmark and go for those crazy high scores...
• EVGA X299 Dark • Intel Core i9 7920X • 32GB G.Skill Trident Z RGB DDR4-3200 CL14 • Seasonic PRIME 80+ Platinum 850W • EVGA GTX 1080 Ti K|NGP|N Hydro Copper  Click here to save 3%-10% on your next EVGA purchase - My associates code is ZQ9K3H42VHCXOEM || Thank you justin_43, liked your Signature format so had to adapt it :)
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zerajera
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Re: X299 Dark 4-Way SLi
2018/06/06 03:22:32
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Y3didya
Majority of games only support 2-Way-SLI and even that in a bad way, because most single cards of newer generations have more than enough power, so optimization is well, not so nice. He stated specifically that 4-way SLI and 3-way SLI are not officially supported by most games. Either you are lucky and it works or it doesn't. In my opinion, not worth the hassle, only if you want to benchmark and go for those crazy high scores...
I'm tending to agree with you, I just wanted to build the best workstation/games machine I could currently buy - a bit of research earlier might have saved me some money!
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Y3didya
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Re: X299 Dark 4-Way SLi
2018/06/06 03:29:02
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The board itself is amazing, and I love it in combination with my 7920X and the KPE HC on it. But even with "only" 2 cards, the board performs extremely well and OC on it is fairly easy
• EVGA X299 Dark • Intel Core i9 7920X • 32GB G.Skill Trident Z RGB DDR4-3200 CL14 • Seasonic PRIME 80+ Platinum 850W • EVGA GTX 1080 Ti K|NGP|N Hydro Copper Click here to save 3%-10% on your next EVGA purchase - My associates code is ZQ9K3H42VHCXOEM || Thank you justin_43, liked your Signature format so had to adapt it :)
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bdary
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Re: X299 Dark 4-Way SLi
2018/06/07 06:23:00
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zerajera
bdary
You can see the spec sheet here > https://www.evga.com/products/pdf/151-SX-E299-KR.pdf
The 2nd page here shows 4way SLI is possible with select CPU's (44 lane) only. You may need to buy a 4way SLI bridge if the accessory section is correct. Shows only a 3way bridge included.
One side note, if it were me going with four GPU's, I would get the blower style cards due to how these will be sandwiched together on the board.
Yes my CPU has 44 lanes. What do you mean "blower type"? The EVGA GeForce GTX 1080 Ti FTW3 cards I have have three fans attached?
The attached pic shows the "blower" style GPU. They do a little better job of cooling when sandwiched together on a board like you plan to do. They draw in air and exhaust it out the back. The card you're looking at also draws air in and then circulates all back throughout your case. That isn't bad when you have decent space between the cards & good airflow through your case.
Attached Image(s)
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zerajera
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Re: X299 Dark 4-Way SLi
2018/06/12 05:23:47
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Y3didya
The board itself is amazing, and I love it in combination with my 7920X and the KPE HC on it. But even with "only" 2 cards, the board performs extremely well and OC on it is fairly easy
I find the lack of support for 3-4 way SLI depressing, I feel a bit duped as the X299 with i9 supports up to 4 x SLI, Benchmarking was best demonstrated using a O/C EVGA X299 Dark i9 7980xe using 4 x EVGA GTX 1080 TI's. Spec'ing a system based on this, only to find out later that you can only utilise this performance using say 3DMark benchmarking software only. Recommendations? - 1. Keep two GPU's and sell my 3rd as 2 x SLI seems to have better support? 2. Keep them all and wait for better support in the future? 3. Flog the whole system and sit on the fence for a year or two? edit 4. Buy a fourth GPU as my original plan - for 4 x SLI? Zera
post edited by zerajera - 2018/06/12 05:29:57
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bdary
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Re: X299 Dark 4-Way SLi
2018/06/12 06:32:38
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Y3didya
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Re: X299 Dark 4-Way SLi
2018/06/12 23:53:16
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zerajera
Y3didya
The board itself is amazing, and I love it in combination with my 7920X and the KPE HC on it. But even with "only" 2 cards, the board performs extremely well and OC on it is fairly easy
I find the lack of support for 3-4 way SLI depressing, I feel a bit duped as the X299 with i9 supports up to 4 x SLI, Benchmarking was best demonstrated using a O/C EVGA X299 Dark i9 7980xe using 4 x EVGA GTX 1080 TI's. Spec'ing a system based on this, only to find out later that you can only utilise this performance using say 3DMark benchmarking software only.
Recommendations? -
1. Keep two GPU's and sell my 3rd as 2 x SLI seems to have better support?
2. Keep them all and wait for better support in the future?
3. Flog the whole system and sit on the fence for a year or two?
edit
4. Buy a fourth GPU as my original plan - for 4 x SLI?
Zera
Well it is not EVGAs fault, since the cancellation for the official 3-way and 4-way SLI came directly from Nvidia, so they are the ones to blame. You can try and see if 3-way SLI works in games and you have no problems, but if I am not mistaken, there are games out there that do NOT support SLI / Crossfire at all and have huge problems with it. Either you do trial and error and see if it works with 3 way and stick to it, or risk it for the biscuit and go 4 way and see if it works, or stick on the supported safe side of Nvidia. You can also contact overclockers who use 3 or 4 way systems and ask them if gaming works with it
• EVGA X299 Dark • Intel Core i9 7920X • 32GB G.Skill Trident Z RGB DDR4-3200 CL14 • Seasonic PRIME 80+ Platinum 850W • EVGA GTX 1080 Ti K|NGP|N Hydro Copper Click here to save 3%-10% on your next EVGA purchase - My associates code is ZQ9K3H42VHCXOEM || Thank you justin_43, liked your Signature format so had to adapt it :)
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TiN_EE
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Re: X299 Dark 4-Way SLi
2018/06/13 18:44:29
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☼ Best Answerby zerajera 2018/06/14 04:17:36
zerajera Go with option 1. SLI was always tricky part, even when NV supported 3-way/4-way before.
If you have question, please post in public forum. I do not reply PMs, so all in community can benefit the answer.
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Y3didya
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Re: X299 Dark 4-Way SLi
2018/06/14 00:21:23
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There you go, TiN gave you the answer from an engineer / developer / professional point of view. Best is to go with 2-way SLI if you want SLI
• EVGA X299 Dark • Intel Core i9 7920X • 32GB G.Skill Trident Z RGB DDR4-3200 CL14 • Seasonic PRIME 80+ Platinum 850W • EVGA GTX 1080 Ti K|NGP|N Hydro Copper Click here to save 3%-10% on your next EVGA purchase - My associates code is ZQ9K3H42VHCXOEM || Thank you justin_43, liked your Signature format so had to adapt it :)
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zerajera
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Re: X299 Dark 4-Way SLi
2018/06/14 04:17:27
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Y3didya
There you go, TiN gave you the answer from an engineer / developer / professional point of view. Best is to go with 2-way SLI if you want SLI
He did and I've already requested a refund on my third EVGA GeForce GTX 1080 Ti FTW3 and will stay with 2 for now. I see Intel are releasing GPU's in 2020, lets see if they can do better!? Many thanks to all individuals who have taken the time to reply and offer advice and links. Zera
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sam nelson
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Re: X299 Dark 4-Way SLi
2018/06/17 06:29:35
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hi all been while since I been in here . but does not mater if the board supports 4/way and the x299 dark does it will work even in all games . you can check out my reg in mod regs , wowhunter2 . i'm running 4 titian pascals in 4/way for over a year and it works just like it all ways did if you know how to find and add back the drivers nvidia drop out. now with that said they don't scale very well if you don't have a load for them to work with , the pascals I have found need a large res package to push them to scale and work. I game at 8k and run at about 90% on all 4 all the time. but with one 2k i'm down in the 20% and they are all over the place one maybe at 12% and next 22%. so in that sense they don't work well if you don't have the work for them to do.
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Y3didya
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Re: X299 Dark 4-Way SLi
2018/06/17 07:23:45
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sam nelson
hi all been while since I been in here . but does not mater if the board supports 4/way and the x299 dark does it will work even in all games . you can check out my reg in mod regs , wowhunter2 . i'm running 4 titian pascals in 4/way for over a year and it works just like it all ways did if you know how to find and add back the drivers nvidia drop out. now with that said they don't scale very well if you don't have a load for them to work with , the pascals I have found need a large res package to push them to scale and work. I game at 8k and run at about 90% on all 4 all the time. but with one 2k i'm down in the 20% and they are all over the place one maybe at 12% and next 22%. so in that sense they don't work well if you don't have the work for them to do.
No one said it won't work, all we said is, it can be very tricky and time consuming to get it running properly.
• EVGA X299 Dark • Intel Core i9 7920X • 32GB G.Skill Trident Z RGB DDR4-3200 CL14 • Seasonic PRIME 80+ Platinum 850W • EVGA GTX 1080 Ti K|NGP|N Hydro Copper Click here to save 3%-10% on your next EVGA purchase - My associates code is ZQ9K3H42VHCXOEM || Thank you justin_43, liked your Signature format so had to adapt it :)
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Sajin
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Re: X299 Dark 4-Way SLi
2018/06/17 13:44:38
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You can definitely enable 4-way sli for older games, but newer games is another story.
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