GTX 580 and GTX 580 SC: Unable to Run SLI

sinister109 · Feb 7, 2014

Hello,

I recently received a second GTX 580 card and installed it along with my GTX 580 Superclocked (including the SLI bridge). After a short while I realized SLI was listed as disabled. I looked online to see how to enable the SLI and was directed to use the SLI Configuration section on the nVidia Control Panel only to find that I do not have that category listed on mine. In attempting to fix this I have: done a clean install of my nVidia drivers, confirmed the GPUs are installed in the correct PCIe 2.0 x16 slots (both are blue per manual), tried two different bridges, and swapped the position of the two cards.

Any help to get this figured out would be greatly appreciated. My system specs are below.

MB: Asus P6X58D
CPU: Intel Core i7-950 3.06 GHz
RAM: 6GB 1600MHz Corsair Dominator DD3
GPUs: EVGA GeForce GTX 580 1.5GB Superclocked (797 MHz) & EVGA GeForce GTX 580 1.5GB (772 MHz)
OS: Windows 7
nVidia driver: 332.21

Thank you for your consideration,
Sam

littleleo · Feb 7, 2014

I believe they have to be the exact same model.

Mousemonkey · Feb 7, 2014

littleleo :

No, they just have to be the same GPU. In some cases the Vram has to be the same as well but that is mostly the older cards.

littleleo · Feb 7, 2014

Then it sounds like it could be a timing issue since one is superclocked and one is not.

Mousemonkey · Feb 7, 2014

littleleo :

That shouldn't matter either.

sinister109 · Feb 7, 2014

Mousemonkey :

I read somewhere else that it would make both cards go off the slower clock speed, but should still work. Would it help if I were to lower the clock speed to 772 MHz on the SC card (after googling how to do so)?

Mousemonkey · Feb 7, 2014

A screencap of your NV control panel settings would help as would knowing what your PSU is.

sinister109 · Feb 7, 2014

Mousemonkey :

Figured I was leaving off something important

I have a 1,000 Watt CoolerMaster Silent Pro Gaming 80 Plus Power Supply

Which section would you need a screencap of? Below should be an image of my GPU monitor for each card.

Found this on the SLI FAQ on nVidia's site:

"Can I mix and match graphics cards if one of them is overclocked by the manufacturer?
Yes. A GeForce XXXX GTX that is overclocked can be mixed with a standard clocked GeForce XXXX GTX. "

Thanks,
Sam

Mousemonkey · Feb 8, 2014

The Nvidia control panel would be better as that shows what options you have available.

sinister109 · Feb 8, 2014

Mousemonkey :

Picture below.

Mousemonkey · Feb 8, 2014

It's the next tab down and it should look like the one on the right :-

sinister109 · Feb 8, 2014

Mousemonkey :

My Control Panel only lists "Set PhysX Configuration," image below:

Mousemonkey · Feb 8, 2014

Double check that the PCIe power connectors are in properly and try both the Asus website and the MS site for updates, if that fails you may have a dodgy motherboard.

sinister109 · Feb 8, 2014

I appreciate your help in this matter, Mousemonkey. I updated my BIOS (the BIOS I had was about 3 months earlier than the latest released), ran windows update, and checked the power connectors on both ends and it did not fix the problem. I even moved the second card from the second PCIe slot to the third and tried separately with both of my SLI cables and it will still not recognize it. A clean install of drivers, only installing graphics and phsyx and nothing else made no change either.

Both cards are working individually, they just aren't being allowed to work together...

Thanks,
Sam

coolitic · Feb 8, 2014

Either you are not setting up the bridges correctly or it's your motherboard.

littleleo · Feb 10, 2014

Are you sure your bridge connector is working. Your sure both cards are seated properly and the card's bus is completely in each of the slots?

You should have an "Set SLI and PhysX configuration" button on the Nvidia Control Panel. If you don't perhaps the driver you DL doesn't feature a proper SLI profile, you will need to add/Update a SLI profile. You can find it on the Nvidia.com's driver page go there and click on Nvidia SLI Profile Updates.

sinister109 · Feb 11, 2014

littleleo :

Hi littleleo,

Thank you for your response. I tried two different bridges and have switched the cards back and forth between the two slots listed in the manual for 2x SLI as well as in the third slot.

I was checking nVidia's driver page and couldn't find SLI Profile Updates, only the standard and beta drivers. Any further details on where to look would be appreciated.

Thanks,
Sam

Mousemonkey · Feb 12, 2014

The SLi profiles won't help as they are only for installed games, it is starting to look like a motherboard issue though.

littleleo · Feb 12, 2014

Here is a link you can try: http://www.nvidia.com/object/nvidia_multigpu_SLI_profile_update_v2.html

If that doesn't help you may have a bad SLI bridge or I'm sorry to say a bad motherboard.

littleleo · Feb 12, 2014

Here are some SLI trouble shooting tips from nVidia, good luck!

http://nvidia.custhelp.com/app/answers/detail/a_id/782/kw/gtx%20580%20requirements/session/L3RpbWUvMTM5MjI0ODc2Mi9zaWQvUkZFTDhOTWw%3D

GTX 580 and GTX 580 SC: Unable to Run SLI

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