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I was using my system with single 980Ti because I feared my 620W Seasonic PSU can't handle my dual 980Ti under load. Then I wanted to give it a try with idle usage. But NVIDIA control panel can't enable the SLI.

Both cards are recognized (I checked with GPU-Z as well)

I connected SLI bridge to different slots with different orientations but still no go... Do you think it is a power related issue?

What do you suggest?
 

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It doesn't do anything when you check "Maximize 3D Performance" and hit "Apply"?
 

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Quote:
Originally Posted by GnarlyCharlie View Post

It doesn't do anything when you check "Maximize 3D Performance" and hit "Apply"?
"Maximize 3D Performance" was greyed out. I couldn't choose anything but "Disable SLI". But I solved it. I had to plug out both cards, change slots and plug them back in. Then I saw ""Maximize 3D Performance" option got enabled so I chose it.
 

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I'm pretty sure you need like 1000W for 3 way SLI lol.

I calculate it like this, correct me if I'm wrong:

- 3x GTX 980Ti's = 250W + 250W + 250W
- Intel Core i7 6700K @ 4.6GHz, 1.36v = 180W

250 + 250 + 250 + 180 = 930W
 
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