seyumi
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This is what I’m talking about:  It still fathoms me that even to this day, the ONLY motherboard in existence that can pull off this setup is the Asrock Extreme7 Gen 3 Z68 motherboard and even supplies a solid 3 way sli bridge with this spacing. I would like to have three video cards in which none of them are sandwich stacked together creating tremendous amount of heat and losing much potential OC headroom while still being able to use a dedicated sound card and network interface card. This board looks like it actually has the potential to pull this off. Will this be a possible setup where the three graphics cards are running in at least pci-e 3.0 8x mode and the other slots at 1x mode via the Z77 chipset + NF200 chip or something? The specifications were very vague it looks like I would need the actual manual to know for sure unless Evga would be so kind to chime in. If so this may be a winner for me and would probably upgrade to this board but keep my old solid Asrock 3 way sli bridge with the 1-4-7 spacing. I’ve always been an EVGA fan but sadly had to go another manufacture since no boards had this option. Thanks!
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/08 21:45:13
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This board actually does come with the SLI bracket to support the setup you are looking to do. Top left, you can see the SLI bridge. 
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seyumi
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/08 22:08:52
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That bridge is a 1-3-5 spacing (from the looks) which is pretty much 3 cards stacked ontop of each other. The Asrock one has an extra space in between the 1st and 2nd plug and the 2nd and 3rd plug giving a 1 slot breathing room between the graphics cards. I'm not really too worried about the bridge itself just if the PCI-E slots can mechanically handle the proposed setup. Some motherboards have PCI-E slots that share bandwidth with each other or slots shut off if another slot is populated, etc.
post edited by seyumi - 2012/04/08 22:13:34
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/08 23:46:09
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Sorry, a little confused then. From your diagram you have it set up as 1-3-5. 2nd slot is used for NIC and 4th is for Sound Card.
There is no 7th PCI-E slot on the Z77 FTW board.
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lehpron
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 00:53:22
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No, #7 starts at the bottom and counts up, not physically having the slot in a space where there would have been doesn't discount the space between, i.e. the EVGA board doesn't have a #2.
The 1-3-5 spacing 3-way bridge assumes stacking three cards together with almost no gap, and the reason it is the majority of options just means most 3-way users just go with it. That just one board with 1-4-7 exists shows you how small the demand really is.
Just so you know, the PLX doesn't create lanes, there are still 16 lanes in the CPU and you're putting in the performance equivalent of three GTX590's in this system; IMO, if you're about graphics you should invest in X79 and stomach not having Ivy.
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lehpron
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 00:55:49
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Just so you know, there are still just 16 lanes in the CPU and you're putting in the performance equivalent of three GTX590's in this system. IMO, if you're about graphics you should invest in X79 and stomach not having Ivy for at least a year. Macros
Sorry, a little confused then. From your diagram you have it set up as 1-3-5. 2nd slot is used for NIC and 4th is for Sound Card. There is no 7th PCI-E slot on the Z77 FTW board. No, #7 starts at the bottom and counts up, not physically having the slot in a space where there would have been doesn't discount the space between, i.e. the EVGA board doesn't have a #2. The 1-3-5 spacing 3-way bridge assumes stacking three cards together with almost no gap, and the reason it is the majority of options just means most 3-way users just go with it or get into liquid cooling. That just one board with 1-4-7 exists shows us how small the demand really is for that type of 3-way SLI in a mainstream board.
post edited by lehpron - 2012/04/09 00:59:05
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 01:04:18
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I see, thanks for the clarification.
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seyumi
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 08:22:56
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Not trying to get in a x79 vs Z77 argument but I shouldn't need an x79 system if I have a Z68 with NF200 or a Z77 with a PLEX chip as it should be able to drive 3-4 graphics cards with 8x-16x bandwidth for each card. I know that the x79 is better since the bandwidth comes directly from the CPU instead of a 3rd party chipset but the performance difference is like a few % at most. Plus the x79 platform is actually a downgrade from the Z77 when it comes to gaming only (faster/cooler cores, lower-latency dual channel memory vs quad channel, x79 boards not being able to support pci-e 3.0 yet, etc.) I would also assume that having a board that can support 3 way SLI with single slot breathing room with the option of doing 4 way SLI would have 100x more market than a 4 way sandwich stacked-only solution without the option of having a dedicated sound card, network interface card, or a PCI-E Solid State Hard Drive. This is why it still fathoms me that only the Asrock board can do this and not even a single x79 board can even though those are more "enthusiast" (more like enterprise imo) Anyway, here's a picture of the Asrock 1-4-7 bridge. Notice how it's a lot longer than a standard 3-Way SLI brdige: 
post edited by seyumi - 2012/04/09 08:42:43
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Johnny_Utah
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 08:49:15
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seyumi
Not trying to get in a x79 vs Z77 argument but I shouldn't need an x79 system if I have a Z68 with NF200 or a Z77 with a PLEX chip as it should be able to drive 3-4 graphics cards with 8x-16x bandwidth for each card. I know that the x79 is better since the bandwidth comes directly from the CPU instead of a 3rd party chipset but the performance difference is like a few % at most. Plus the x79 platform is actually a downgrade from the Z77 when it comes to gaming only (faster/cooler cores, lower-latency dual channel memory vs quad channel, x79 boards not being able to support pci-e 3.0 yet, etc.)
I would also assume that having a board that can support 3 way SLI with single slot breathing room with the option of doing 4 way SLI would have 100x more market than a 4 way sandwich stacked-only solution without the option of having a dedicated sound card, network interface card, or a PCI-E Solid State Hard Drive. This is why it still fathoms me that only the Asrock board can do this and not even a single x79 board can even though those are more "enthusiast" (more like enterprise imo)
Anyway, here's a picture of the Asrock 1-4-7 bridge. Notice how it's a lot longer than a standard 3-Way SLI brdige:
Off topic, with a couple of different systems to test on, I wouldn't ever say that X79 was a downgrade in gaming. The 3930k/3960X both support PCIE-3.0...(on X79 platform). The only thing that does NOT support it is the idiotic Nvidia drivers.(2 x 7970's run 3.0 just fine) Running 2-3 different cards on X79 builds vs my Z68 build, I seem to get a marginal performance increase. The Z68 does indeed run cooler, but with a heavy WC build, I have pushed my 3930k past 5GHz. I will be picking up an IVY bridge to fold on, but that's about it. TLDR: If you want to run TRI or QUAD SLI, get a socket 2011 chip and an X79 board.
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foxmino
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 14:58:54
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seyumi
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/09 16:37:48
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/04/20 06:46:22
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Sorry, just want to clarify then if it's possible to do a 1-4-7 3-way SLI on the Z77 FTW then if we get the taller SLI connector or flex SLI connectors.
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willdearborn
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/01 15:49:53
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Sorry to necro this thread, but I really want to know the answer to this. Is 3 way SLI using slots 1-4-7 possible on this board? Can anyone from EVGA comment on this? It would be appreciated.
I know EVGA doesn't provide a 3 way bridge with the correct spacing, but if I were to get one of the ASRock bridges would the 1-4-7 config work on this board?
I really don't understand why more high end modern motherboards don't use this slot layout. It makes the most sense in every way. In a perfect world, I'd like to see a new X79 board from EVGA with this slot layout and the correct bridge provided.
This layout pretty much tops my list in what I desire from a motherboard, and to date there are only 2 boards that have it and they are both from ASRock. Hopefully EVGA will make this possible on future boards. But what about the Z77 FTW, will it work?
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/01 16:04:53
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I don't see why a different bridge wouldn't work. Its all on the same bus running to the CPU. I guess if you wanted the horsepower of 3 graphics cards, I would up that one better, and put 2x 690 in slots 2 and 4. Put the sound card and nic in either slot 1 or 5. If you are planning on making a folding rig, X79 is better platform, hexcore more threads, more folding. Or if cash is no objective, Go with the SR-X. Should be plenty of room to run tri sli along with the sound card and nic.
post edited by corndogg18 - 2012/11/01 16:09:02
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willdearborn
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/01 16:16:24
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corndogg18
I don't see why a different bridge wouldn't work. Its all on the same bus running to the CPU. I guess if you wanted the horsepower graphics card, I would put 2x 690 in slots 2 and 4. Put the sound card and nic in either slot 1 or 5. If you are planning on making a folding rig, X79 is better platform, hexcore more threads, more folding. Or if cash is no objective, Go with the SR-X. Should be plenty of room to run tri sli along with the sound card and nic.
Well going from what I've read from other people's experiences on other boards it might not actually work, or could possibly lower the bandwidth on one or more of the slots to 4x. For example I've read that this is what happens on the ASUS RIVE which physically has the correct layout but 3 way won't actually run stable in 1-4-7 so that's why I'd love to hear from EVGA on whether it works or not. And to your other points, I am actually just concerned with having the extra slot between the video cards in 3 way SLI. And no other boards have the correct PCIe slot layout. It's a nice bonus that I can slap a sound card in as well, but air flow is my reason for wanting this config. Of course I could just go with watercooling, but I change graphics cards way too often to buy new waterblocks constantly. I'd just love to runs 3 way air cooled cards with the best possible temps, and this layout is really the only way. 3 way SLI with sandwiched cards in 1-3-5 gets super hot. EDIT: It looks like the SR-X actually has the correct layout, but I am not interested in the board or locked Xeons. I'm looking for a single socket board.
post edited by willdearborn - 2012/11/01 16:19:53
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/02 05:11:11
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I see, well in that case, we will probably have to wait for an EVGA official to chime in on this one. I run 2x 580 SLI. The one card on the top does run hotter, as I am using slots 2 and 4. But nothing to the point of concern. However I can not vouch for a 3rd card. Perhaps it does run much much hotter when one card is in the middle of the other two. On a side note, is the SR-X limited to Xeon only? Not possible to run 3930k chips in it? Best of luck on your search for the answer to the SLI bridge concern.
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lowe0
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/02 07:06:43
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This would be nice, as it would free up a PCIe slot for my Killer 2100.
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MontNoir
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/04 21:48:25
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I ran three 6970 Ligtnings and then three 560 448 TF3 in this slot configuration. Main benefit is for a dual slot air cooled card, the top two more specific, will have a slot of breathing room. This was the main reason I went with this board and my air cooled setup a couple of months ago. I have pics if any one is still unsure.
Btw, you get 8x/8x/8x with this arrangement AND you have to use a 140mm SLI ribbon cable to connect the top and bottom card. I can help with this too. I know Asrock makes a hard bridge with this slot arrangement for triple sli but I was told they're hard to come by. MSI is the best place to source a 140mm ribbon sli bridge. Crossfire is business as usual for the bridges.
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willdearborn
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/05 15:27:01
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MontNoir
I ran three 6970 Ligtnings and then three 560 448 TF3 in this slot configuration. Main benefit is for a dual slot air cooled card, the top two more specific, will have a slot of breathing room. This was the main reason I went with this board and my air cooled setup a couple of months ago. I have pics if any one is still unsure.
Btw, you get 8x/8x/8x with this arrangement AND you have to use a 140mm SLI ribbon cable to connect the top and bottom card. I can help with this too. I know Asrock makes a hard bridge with this slot arrangement for triple sli but I was told they're hard to come by. MSI is the best place to source a 140mm ribbon sli bridge. Crossfire is business as usual for the bridges.
I'm happy to hear from someone who has actually pulled off this config on the Z77 FTW. That's awesome. Now I know what board I'm getting. Just gotta find a bridge. If you know where to get one shoot me a PM. Thanks 
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MontNoir
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/05 16:04:40
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MSI support has them. They're hard to find anywhere else but occasionally the will pop up in the forums and ebay. I haven't gotten a reply from Asrock about their hard bridge but I know they include one with the Z68 Extreme7. I send EVGA-Jacob a pm at overclock.net. I suggested to have 140mm ribbon bridges and if there was a possibility of a hard 3-way bridge. Sent you a pm. I can link my ocn thread where I had this concern addressed though I'm not sure if I'm allowed to link outside sources or forums 
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willdearborn
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/05 17:49:43
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MontNoir
MSI support has them. They're hard to find anywhere else but occasionally the will pop up in the forums and ebay. I haven't gotten a reply from Asrock about their hard bridge but I know they include one with the Z68 Extreme7.
I send EVGA-Jacob a pm at overclock.net. I suggested to have 140mm ribbon bridges and if there was a possibility of a hard 3-way bridge.
Sent you a pm. I can link my ocn thread where I had this concern addressed though I'm not sure if I'm allowed to link outside sources or forums
Thanks MontNoir, you are the man! Not only did he confirm that this config works on the EVGA Z77 FTW, he is also sending me an extra 140mm SLI bridge. 
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buggyruth
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/05 18:38:46
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I have not done this configuration. But I did spot that option when I was MB. shopping. I completely agree with you, the spacing being ideal on that set up, way better heat dissipation! You could even place some fans to move extra air between them to get even better GPU cooling. 
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MontNoir
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/05 22:14:28
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/06 08:25:39
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Wow, thats pretty neato. Might have to give that a whirl If I ever upgrade to a third card.
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willdearborn
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/06 14:42:12
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I hope EVGA considers this slot layout for future boards and will start to make correct size 3 way bridges to include with the boards. Please, I beg you guys  But really this can only help keep our cards cooler, which is especially important with the 600 series since they start to downclock above 70 degrees
post edited by willdearborn - 2012/11/06 14:47:07
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/16 23:39:33
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i tried to pull this off myself and couldnt find a slil bridge long enough to reach from 1-7. 140mm is the longest i found and you need about 150mm.
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Sajin
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/17 00:17:16
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wrinvert
i tried to pull this off myself and couldnt find a slil bridge long enough to reach from 1-7. 140mm is the longest i found and you need about 150mm.
Mind sharing where you got the 140mm from? Thanks.
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/17 10:49:18
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Sajin
wrinvert
i tried to pull this off myself and couldnt find a slil bridge long enough to reach from 1-7. 140mm is the longest i found and you need about 150mm.
Mind sharing where you got the 140mm from? Thanks.
ebay $5. shipped i think look for asus 140mm sli bridge
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MontNoir
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Re:1-4-7 Tri-SLI Spacing Possible on FTW model?
2012/11/19 10:53:58
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No, you don't need a 150mm bridge. I did this and I sourced a 140mm. Contact MSI support. It seems like they're the only ones that still make them. You might get a black one or the traditional gold/copper colored one. Btw, I got a couple free from MSI support. Very nice of them :), or it was because I had three MSI 560 448s :D. Ebay only had 120mm but on occasion I was told they do pop up there. So they're very rare. Here's my thread @ ocn about this: http://www.overclock.net/...bon-sli-bridges-solved
post edited by MontNoir - 2012/11/19 10:56:40
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