I have no idea what I am doing wrong, I figured it would be as simple as popping in the 2nd card and hitting go. Here is my setup:
 
i7 4770k
Gigabyte z97x-soc force
2x EVGA GTX 780 3GB (both cards 8x PCIe, 110% confirmed)
3x Asus 24" 144hz w/ DUAL LINK DVIs
W7 SP1 PRO x64
Drivers: latest official, and latest beta - no difference.
 
Before I had no issues with a single card and surround, 2x DVI and 1x DP. I added the 2nd card and SLI works perfectly fine with 1 monitor, however when I try to select 'Span displays with surround' - it says SLI disabled and won't allow me to activate surround.



 

Any ideas...kinda really unhappy after spending the whole evening trying to figure out why this isn't working - not to mention the money lol.

ziggo0
I have no idea what I am doing wrong, I figured it would be as simple as popping in the 2nd card and hitting go. Here is my setup:
 
i7 4770k
Gigabyte z97x-soc force
2x EVGA GTX 780 3GB (both cards 8x PCIe, 110% confirmed)
3x Asus 24" 144hz w/ DUAL LINK DVIs
W7 SP1 PRO x64
Drivers: latest official, and latest beta - no difference.
 
Before I had no issues with a single card and surround, 2x DVI and 1x DP. I added the 2nd card and SLI works perfectly fine with 1 monitor, however when I try to select 'Span displays with surround' - it says SLI disabled and won't allow me to activate surround.



 

Any ideas...kinda really unhappy after spending the whole evening trying to figure out why this isn't working - not to mention the money lol.

I seem to recall something about trying to run SLI surround with 144hz monitors. Have you tried setting  the monitors to 60hz in the control panel just for testing. You have the displays connected correctly using the DVI connectors according to the screen cap of the control panel.

Both cards in #1 and #2 slots?
 
 
had that happen to me and I was directed here to move cards from #1 and #3 and then it showed up.

Currently 1 & 3. I'll give 1 & 2 a try but I think there is going to be a clearance issue.



Nope.
 
That is your issue.
 
I did the same thing, and had the same issue

outhouse
 
Nope.
 
That is your issue.
 
I did the same thing, and had the same issue

Actually, here is why:
 
 
 

Alright, here is a list of everything I have tried this evening. To make everything as clean
as possible I started with a clean load of the OS (W7 PRO x64), most updated available chipset
drivers, latest WHQL driver from Nvidia's site.
To clairify everything - I have been using PCIe slots 1x & 3x, which yield 16x and 8x with 2
cards plugged in. I am able to enable SLI without a single issue, and benchmark scores reflect
this - as well as in game experiences - however it is only with 1 monitor on. If I attempt to
choose 'span displays with surround' - I can enable surround however SLI remains disabled -
verified by GPUz. I have to have all 3 monitors connected to the top card, 2x DVI & 1x DP for
surround to work.
If I attempt to plug in the monitors to the bottom card - I am completely unable to enable
surround - as it complains I do not have 3 monitors plugged into the top card. It's as if it
does not see the bottom card? During this time it states 'SLI disabled'. I have attempted the
following from this JPG - all of which require I use the 2nd card for at least one monitor -
all of which do not work.

I tested Option 1, 3 & 5 - as I do not plan to use HDMI. Each time I adjust the configuration
it gives this exact same message: "Connect a display to this gpu" and shows only the 1 like in
my first post :/
I have tried enabling SLI then doing the 'span with surround' - SLI option did not stick.
If I select 'activiate all displays' - all 3 monitors come up reguardless of how they are
plugged into the cards however SLI remains disabled.
If I enable SLI I am only able to activiate the monitors connected to the top card, all 3 - I
can enable surround however it shows as SLI disabled.

EVGATech_JoseR
Start by setting your refresh rate down to the standard 60Hz for the purpose of testing, try
physically switching the cards around on your motherboard, test with a different SLI bridge
all together. This might even by a firmware conflict between both cards. I would also
recommend performing a clean installation of the drivers BUT without the extras such as PhysX,
Geforce X, HD Audio, and Stereoscopic 3D.
Hope this helps.

Per your specific requests, 60hz did not help in the situation. During surround enabled and
before.
Using PCIe slots 1 & 2 - according to my motherboard are 16x & 4x slots respectivly - yielded
in SLI not being an option period due to the minimum 8x restriction. It was suggested that
using slots 1 & 3 was causing my trouble - however according to my motherboard manual & slot
markings - 1 & 3 are the only true 16/8x slots - as confirmed by the screenshots

I did the driver install ( as well as a clean load of the OS) as you recommended, I used the
offical and beta drivers from Nvidias site. Still no go :(
 

Sajin
Have you tried all available older drivers? If not, give them a shot.

Just downloaded all the prior versions to 320.18 - gonna start working backwards. Gonna be a long night lol
 
Edit: Phrased it wrong sorry

does sound like a bad sli bridge , did you find the / a spare ?
btw have you compared bios etc via gpu-z ?
 
my sig is old , havent updated , im running 2 780Ti's and 3 VG248QE .

I have to ask, I though that you could only run one or the other but not both at the same time?

ziggo0
320.18 - no sli available, surround enables but no sli enabled.
320.49 - no sli available, surround enables but no sli enabled.
327.23 - no sli available, surround enables but no sli enabled.
331.82 - no sli available, surround enables but no sli enabled.
332.21 - no sli available, surround enables but no sli enabled.
334.89 - sli available, span displays with surround available but no sli enabled, activiate all displays unavailable.
335.23 - sli available, span displays with surround available but no sli enabled, activiate all displays unavailable.
337.50 - sli available, span displays with surround available but no sli enabled, activiate all displays unavailable.
 
 
Well that is interesting. I tested both SLI bridges as well, same results per driver. The SLI bridge I found was still bagged but in the bottom of a box slightly less than not smashed up lol, I'll see if I can find another just for the sake of figuring this out.

I use 3 DVI-D cables for my 3 Asus 27" 144 hz monitors. When I enable surround it doesn't say SLi surround. Nor do you enable Surround then SLi. One or the other. So long as you are using the appropriate outputs, and the SLi Bridge on, it will use SLi surround, when you enable surround. I use the 2 DVI-D outputs on the top card, and one DVI-D from bottom card. Then when you enable surround it will be using SLi. Make sure you are using DVI-D cables for 120 or 144hz, the display port requires a power adapter to use 120 or 144hz. I imagine you are if you are using the ones that came with the monitors. Either DVI-D on the bottom can be used in conjunction with the first card using the 2 available. Once you have surround enabled using that config, check if SLi is working by checking the gpu useage on both cards while in game with either evga precision or msi afterburner. So long as you see useage on both cards then SLi surround is enabled. Hope this helps. :)

ziggo0

SparkyShaft

ziggo0
320.18 - no sli available, surround enables but no sli enabled.
320.49 - no sli available, surround enables but no sli enabled.
327.23 - no sli available, surround enables but no sli enabled.
331.82 - no sli available, surround enables but no sli enabled.
332.21 - no sli available, surround enables but no sli enabled.
334.89 - sli available, span displays with surround available but no sli enabled, activiate all displays unavailable.
335.23 - sli available, span displays with surround available but no sli enabled, activiate all displays unavailable.
337.50 - sli available, span displays with surround available but no sli enabled, activiate all displays unavailable.
 
 
Well that is interesting. I tested both SLI bridges as well, same results per driver. The SLI bridge I found was still bagged but in the bottom of a box slightly less than not smashed up lol, I'll see if I can find another just for the sake of figuring this out.

I use 3 DVI-D cables for my 3 Asus 27" 144 hz monitors. When I enable surround it doesn't say SLi surround. Nor do you enable Surround then SLi. One or the other. So long as you are using the appropriate outputs, and the SLi Bridge on, it will use SLi surround, when you enable surround. I use the 2 DVI-D outputs on the top card, and one DVI-D from bottom card. Then when you enable surround it will be using SLi. Make sure you are using DVI-D cables for 120 or 144hz, the display port requires a power adapter to use 120 or 144hz. I imagine you are if you are using the ones that came with the monitors. Either DVI-D on the bottom can be used in conjunction with the first card using the 2 available. Once you have surround enabled using that config, check if SLi is working by checking the gpu useage on both cards while in game with either evga precision or msi afterburner. So long as you see useage on both cards then SLi surround is enabled. Hope this helps. :)

I know all my posts are making me sound really dumb but I promise it's just not working. Here is as far as I can get.
 

 edit: god this forum is weird when it comes to BBcode

http://i.imgur.com/1hKEQIq.jpg

I cannot enable surround PERIOD if I don't have all 3 monitors connected to the top card....that is where the problem is with trying it your way. 

From what I can tell you are using the Display Port output, which if you are using the 2 DVI out puts on the top card, you cannot use a Display Port adapter on the second card. Only way to enable SLi Surround is using 2 outputs on top card, an 1 from bottom. Look at your post above an you will see that the config for outputs, that config is not useable in SLi surround. If you have another DVI wire, even if it is reg one an not a DVI-D, it will enable surround, it just wont be more then 60hz. Basically you just need another DVI-D cable hooked to the monitor you are using an to the second card DVI output, leave the display port cable out of the equation an it will work. Trust me. :)

ziggo0
I do happen to have a dual link DVI cable to test that with. Here are the results...it's complaining that I don't have 3 monitors hooked up to the top card, but as you can clearly see I do have 3 monitors hooked up 2 DVI top, 2 DVI bottom.
 

 

http://i.imgur.com/B27DMJI.png

 

 Notice it doesn't even show the 2nd card in the option to enable surround, it should be showing 2 cards there. I know it shows in the NVCP, but it doesn't on the enable/apply changes screen. Odd that it will allow sli, but not surround with one connected to the other card. Now are you trying to enable with SLi off before hand, or are you enabling SLi then trying to enable surround. Cause SLi will only allow connection to one card, then SLi surround will only work with one of the monitors hooked to the other card. 
 
I wonder if one of the displays has a polarity issue. To test, can you select Activate all displays? If you can, once they are enabled, go to the resolution area, select each monitor an create a custom resolution. Make them all default 1920x1080, the same polarity, +/+, -/+, whatever it shows for the default, it will allow you to test before confirming the change. Once all 3 are changed, and match, then try enabling with all using DVI-D to those outputs we were trying. It really shouldn't need to change more then one of them, the one hooked to the 2nd card. I'm just saying to change all three to rule out. I would have to find a link to this where I discovered it when I had an issue with polarity sync when I was using 3 matching lcd tv's one time an one of them was different polarity an would not show up as yours is. I understand your monitors are all the same, but even from the same batch they can be different polarity from one to the next. 

I had similar issue i spend almost all day fighting to enable SLI. Did almost everything found on net: mobo bios update, changing bridge, updates, drivers etc etc.
Finally noticed in GPU-Z that my second cars is x4 instead x8! That leads me into conclusion theres sth wrong with PCI ports, and...i found WIFI card in last one ;) My mobo doesn't like it at all, need to take it out, reboot and Nvidia SLI start work like a charm.
 
If any case, HyperSLI can be used to enforce SLI.

Glad things have worked out for you. I have noticed that drivers and surround have been a hit or miss with me as well.