Surround 12k With 2 Cards - It's Possible?

3 Way SLI 980TI - 12k@60Hz not Work's - Update

I request the help of the masters and understanding of the subject, because I think I've tried everything and did not succeed.

I have 3 x Samsung JU6500 50 'and 1 PC with 2 VGAs GTX TITAN X. Each VGA that has 1 HDMI, 1 DVI and Displayport 3, all these doors in their newer versions that support higher resolutions.
The purpose of the setup is to use the 3 screens (NVIDIA SURROUND) to play racing simulators, but in 12k @ 60Hz, and for that I need to use one of Displayport ports because each card has only one HDMI. Well, searching the internet and in various forums discovered that several people had the same limitation that I play on TV that only has HDMI 2.0 and run the games in 12k @ 60Hz with only two VGAs, whatever they may be, that due to having to use the Displayport to a third connection.
Therefore sought a cable or adapter that meets the correct specifications to meet the 4k @ 60Hz (HDMI 2.0 and DisplayPort 1.2 @ 60Hz) and the only solution available at the moment is uptad adaptador and so bought. The adapter actually delivers what it promises and below are the tests.

1 - individually tested each TV in HDMI 4K @ 60Hz - OK
2 - individually tested each TV in Displayport with adatapdador 4k @ 60Hz - OK
3 - Tested 2 screens with HDMI 8k @ 60Hz - OK
4 - Tested 2 screens with HDMI + DP 8K @ 60Hz - OK
5 - Tested in every way (Ports) the 3 screens 12K @ 30Hz - OK
6 - Tested in every way (Ports) the 3 screens 12K @ 60Hz - FAIL

When i run the three screens in 12K @ 60Hz (11520x2160p) PC resets, I already tested at least 3 Nvidia Driver versions in Windows 7, Windows 8.1 and Windows 10 and the result is always the same, no blue screen or anything else, when you apply the screen resolution setting goes black for about 5 sec (normal) and then resets the PC.
Help me figure out what to do to achieve the goal, 12K @ 60Hz with this setup.

Thanks in advance!

 

Maximum resolution for those cards is 5120x3200 according to the Nvidia spec sheet. While you may be able to hack it somehow, the performance you get will be crap.

 

Games like rope Assetto , iRacing and RaceRoom are relatively mild and do not consume much procesador and memory, but the question is why the PC resets and does not accept the resolution 11520x2160p since everything is within specification.

 

up, please! Anybody

 

Sounds like you need a new/more powerful PSU.

What you can do to test this theory out partially is to hook your video cards up to a separate PSU (one you may have already or borrow from another machine, that is sufficient), thus reducing the load on your system PSU. If everything holds up this way, you know what to do. You can use the paperclip method to turn on the second PSU before turning the machine on. If you don't know what that is - it is simply bending a paperclip into a U shape and putting one end to a black wire in the 24 pin connector and the other end into the green.

According to NVIDIA, the TDP on just one card alone is 250W (before overclocking) with a 600W recommended PSU. Take into account cap degradation if your current PSU is a little older now, and it is easy to see how it could be failing under such a high demand.

Source: http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-titan-x/specifications

 

Have a look at this dude. It is from the wall, before PSU converts (and loses) energy (because no PSU is 100% efficient):

http://hardforum.com/showpost.php?p=1041637683&postcount=16

(You are not going to damage your cards with your current PSU - whether or not it turns out to be the culprit.)

 

Dear,

My PSU is Coisair RM850 , would not be enough for SLI TITAN X.

 

Hi there

I would be surprised if you will be able push 12k on SLI Titan X

Please have look again on this

http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-titan-x/specifications

As single Titan X is able push:

* 5120x3200 at 60Hz with dual DisplayPort connectors.

Which means you will probably need one more Titan X

I'm running EVGA Titan X with GTX780 for rendering(GPU usually renders sometimes 24 hours)and my PSU is 850W(Silverstone Gold Strider) and there I've never experienced with something like you are experiencing,but agree you have two Titan X,but mine GTX780 have same consumption like Titan X

Maybe I'm wrong with this 12k on yours setup,but what I know most of people running at 12k 3xTitan X or more

Hope this helps

 

Next time do not buy nvidia blindly, if you want that resolution you should have bought the fury x and gotten 3, eyefinity was always better than nvidia surround especially in highier resolutions e.g the first 12K gaming video was done using 3 amd 7970 gpus without a problem. You need atleast another titan x for that to work since i have always seen 12k videos of people running quad sli titan x. Only nvidia rep can help you but you need atleast another or two more titans.

 

What is strange is that 12k @ 30Hz runs OK. The problem is when I change to 12k @ 60Hz . Good tips on AMD maybe I can still make an exchange of TITAN x in something or even 3 980TI. Thanks for the support so far, I will carry out the proposed test and post the results.

 

Hi there

This is very strange for me too,because you can run or play at 12k@30hz,can you check the cables and can you try disabling SLI and try again ?

And can you try check the settings on the TV and check what settings are you running something like this 4:4:4 or 4:4:2?

And are you using HDMI or DP? Or are you using Active DP ?

Hope this helps

Thanks,Jura

 

Q: This is very strange for me too,because you can run or play at 12k@30hz,can you check the cables and can you try disabling SLI and try again ?

A: Already tested it

Q: And can you try check the settings on the TV and check what settings are you running something like this 4:4:4 or 4:4:2?

A: Already tested it with 4:4:4, 4:4:2, 4:2:2 and RGB, the problem occours with all options.

Q: And are you using HDMI or DP? Or are you using Active DP ?

A: I'm using 2 HDMI ports, 1 by VGA Card and 1 DP adapter http://www.uptab.com/displayport-to-hdmi-4kat60hz-adapter-cable-gold-plated.html

I've been checking and found this, I am using option 4 - http://www.geforce.com/hardware/technology/surround/system-requirements

 

Have you tested that adapter alone? I don't think there are any dp to hdmi adapters that support 4k@60hz currently (4:4:4, 4:4:2, 4:2:2 that is, only 4:2:0 supported according to this). So that's pretty much your problem right there I would presume. :3eyes: Try to find one of these instead: http://www.amazon.com/Club3D-Displayport-1-2-HDMI-CAC-1070/dp/B0194F1MY4

 

I will do test and report this here!

Best Regards!

 

Hi there

Can you try to use only DP?

I would try to use only DP and daisy chain them,scratch that as NVIDIA doesn't support at all daisy chaining in Surround

Second option is to check cables and I would check too this adapter as above,but is yours GPU overclocked there ?

I know there has been issue with 4k@60 in past on AMD where you need put higher power limit,if not then you will have flicker issue,then I would suggest at least to try raise power target and add bit more over voltage(+25.0mV) and regarding core +255MHz and Memory Clock Offset add 255MHz,those are very safe settings,I'm using those settings 24/7 for rendering and my Titan X sometimes renders 24/7

Hope this helps

Thanks,Jura

 

I performed the tests with the chroma in 4: 2 : 0, but it still fails , just now falls to 5870x1080p resolution automatically. For those who suggested using test only the DP I already did , and it worked normal for 4k @ 60Hz . I think I will need an extra VGA , the options are running out.

 

Should work perfectly with SLI and I am still thinking it's the adapter that is the problem. Try to get your hands on one of those Club3d ones as they are almost guaranteed to work (except if you own a VIzio TV based on the comments :3eyes. Did you test the dp adapter on its own (as in dp -> adapter -> hdmi)?

 

PC resets = PSU issue, unless BSOD

 

I already tested the only the adapter DP >>> HDMI and this works fine 4k@60Hz with configs(4:4:4 / 4:2:2 / 4:2:0 / RBG).

About the reset, do not appear BSOD, the PC just reset, the screen stay black by 30sec after set up the 11520x3860p @60Hz, and it reset so. When the come back, show me Surround disable!

 

Hmm that is weird as I haven't seen anyone else with the same adapter manage to get anything above 30Hz. But if it works it works. Stupid question, but have you tried it with older drivers (with DDUing the old ones before installing)? Also regarding the PSU I really have a hard time believing two regularly clocked gtx Titan Xs would ever require more than 850w (could be faulty pci-e lanes, but as it usually works I don't see how that could be). Have you tried calling Nvidia?