New build not recognizing SLI

Drezriel

Reputable
Nov 21, 2015
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4,510
All, I'm in a bit of a jam here and I'm not sure what to do. Any advice is greatly appreciated. I just did a brand new build and it looks like my rig is not recognizing my 2nd card.

My Build:

Windows 10 Home
i7 6700
Asus z170-a mobo
SLI MSI 980ti Armor 2x


What I've done so far:

Updated nvidia drivers to 359 (latest driver)
Flashed the BIOS on my Asus z170-a to the latest version
Tried each card individually and they worked
Checked and rechecked connections and everything appears fine

Here's what I've noticed:

Monitors work fine on top card but don't work in the 2nd card in the 3rd slot of the mobo. I don't think it's the card, could the 3rd slot in the mobo be bad?

Checked the BIOS and it doesn't even detect that there's a second card plugged in.

I have an MSI SLI bridge that lights up when the power comes on if that means anything?

Could the mobo be bad?

I hope this gives some kind of information. Please, any and all help is greatly appreciated. This is my first build on my own and I'm becoming a bit disheartened. Thank you in advance for your help.