I have a Maximus VII Hero board with 16Gb of RAM. (750W PSU), updated bios on board, swapped cables and connectors multiple times
Everything is testing fine until is set my two EVGA GTX 960 SSC 4Gb cards to SLI.
The system will runs and tests fine in SLI until I try to reboot. Then it hangs before it gets to desktop for Win 8.1
Tried a few different drivers on clean installs with same results. I end up using a restore point I had made before I applied the SLI to get it back.
I have been fighting this for a day or two now and i'm open to any suggestions at this point.
 
Thanks in advance.

Brand new. Voltages are all testing fine - EVGA  750 B2

Have you tried running each card seperate, if they both work nicely on there own, it could be the SLI bridge.

Bugcheck code: 0x116 can mean there is video display issue. The driver mentioned doesn't really matter (Windows sucks and doesn't know). It's probably a hardware issue.

So like I said earlier, can you test a diffrient SLI bridge?

I am officially stumped.
 - have ran both cards separately with no issues
 - Ran mem tests and stress tests with no problems.
 - Played games like FarCry 4, BF4, and Bioshock at max settings for extended periods with no issues.
 - went through as many suggestions as I could  for the VIDEO_TDR_ERROR but all checked out fine. (very good thread -  ) by Amorphous on the Nvidia forums
 
I know my PSU has a rating of 62A on the 12V+ rails. I found the cards are rated as 120W but recommend 400W.
Is there a big power draw on booting that would be needed? Runs fine any other time.
I am stumped
 
I guess I will just have to remember to turn off SLI every time I shut off my computer.....
 

rocky01
Does MB have the latest BIOS? Have you tried running everything sans overclocking? Hmm. Looks like you'll have a good excuse to take advantage of the EVGA upgrade program and just go ahead and get the GTX-970 FTW ... and be done with it :)

I don't think that's something he wanted to hear. Basically what that's saying is he has to put more money down on a "warranty" upgrade because what he purchased didn't work for him. Doesn't sound right. know what I mean?

The cards run great separately. They run great together for that matter. MB was updated.
Still just an issue when you try to boot with SLI enabled and it hangs. I can boot with both cards installed, without SLI,  running fine.
I have been playing with the computer the last few days on and off. No gaming or temp issues so far.
I still have a few things I want to try when I get time.
 - swap power cables to different connections on the PSU
- I have my old system that has two 560 Ti cards in it. Thinking of swapping with the 960's to test.
Boot logging shows it repeatedly trying to initialize the audio on the 960's that I have no need for. Not sure if this is contributing to my TDR issues on boot.

Time to re-install windows to see if it helps.

It's deffinitly an issue with the cards being applied to SLI and could be a driver issue. However I see you've tried just about everything in the book and I don't know if your gonna fix it ecspecially if others are having the same issue. So now your left with choices and I would say step up to a GTX 980 which has better memory (256) and would probably use less electricity. Not to mention the problems of SLI would be gone along with the heat/furnace action. Keep in mind you only have 90 days from the date you purchased the cards. I say go with the step up, the 960's cost you about $480 and the 980 is only $540. Also the solo 980 would likely outpreform the 960SLI. So for the price of a video game you can get a better card and even be in the game to step up to the 980ti when it comes out (maybe).

If you're unfamiliar with EVGA Step-Up then me or someone else can help you more if you are interested.

I believe it does but you may be required to pay postage to the USA if Australia doesn't have a facility to handle your request. You can also call EVGA 24/7 for assistance and they can likely guide you through the process and tell you their policy for Australia.

Under my Product info I have:

 
                 Step-Up Information:                
                Step-Up program is for U.S. and Canada on this site only.

ok I'll contact PC Case gear and see what they say.

Zystus
I have the same exact issue with my x2 GTX SSC 960 4GB. I could turn on the SLI and play GTA V perfectly fine but I always have to turn off SLI or else it'll hang my Windows 7 at startup. I've reformatted my SSD 5 times and its all the same problem with SLI turned on. I have a feeling it has something to do with the BIOS, I have a Gigabyte Gaming 7 with Bios version F6.

It seems to be a common issue and with the 4gb 960's and you should get about the same performance with a 980 and avoid the SLI issues.  I would try to step up with EVGA or try to get a in store refund before its too late.  I don't know why its happening and maybe its a driver issue that there trying to fix but you can just get a 980 and be done with it.  It doesn't seem like anyone really has a solution either.
 
Its only $60 more for the 980 so I would take it before the step up expires
 
You might also want to check on this periodically as its your exact issue. 
https://forums.geforce.co...25155/?comment=4505695

bsmegreg

Zystus
I have the same exact issue with my x2 GTX SSC 960 4GB. I could turn on the SLI and play GTA V perfectly fine but I always have to turn off SLI or else it'll hang my Windows 7 at startup. I've reformatted my SSD 5 times and its all the same problem with SLI turned on. I have a feeling it has something to do with the BIOS, I have a Gigabyte Gaming 7 with Bios version F6.

It seems to be a common issue and with the 4gb 960's and you should get about the same performance with a 980 and avoid the SLI issues.  I would try to step up with EVGA or try to get a in store refund before its too late.  I don't know why its happening and maybe its a driver issue that there trying to fix but you can just get a 980 and be done with it.  It doesn't seem like anyone really has a solution either.
 
Its only $60 more for the 980 so I would take it before the step up expires
 
You might also want to check on this periodically as its your exact issue. 
 

I would totally get a GTX 980 but I recently bought my PC from CyberPowerPC. I got 2 cards for $108 each so a total of $216 when they had the March Madness sale which I think is a major steal since 1 card already goes for $240. I love my PC and how it's set up... If only this SLI bug would just go away!!!

Did a bit more digging and the stepup program would be good but, it is only a "one for one" swap. So I would have to swap out both cards and that would end up being more money than I really can afford right now.
I'm hoping EVGA will step up and represent by backing up the cards and make things right.