Triple-monitor with SLI'd cards?

[IvanTehFennec]

Hello! So, I have a puzzle for you.

Here's the setup:

I have two GTX970's SLI'd together. Each has two DVI-D outputs, an HDMI output, and a Displayport output.

I have three monitors, one using Displayport, one using HDMI, and one using DVI-D.

Here's the catch: I can only get the Displayport and the HDMI ones to work together. Any attempt to make the DVI-D monitor (which is using a DVI-D or DVI-I to VGA adapter) to be recognized by the Nvidia control panel come out to nothing. I've tried both cards, with both ports on each card, I've tried 3 different known-working cables, and three different otherwise-working adapters. I've tried using my 4th monitor as well for this, and can't get it to work.

A few more details:

My 'Main' monitor can accept DP, HDMI, and DVI-I.
My 'Secondary' can accept DVI-D, HDMI, and VGA.
My 'Third' (The one in question) can accept only VGA.

Is there some magic combination I can use to make this work?

 

[OlyAR15]

If the video cards do not have an analog output (dvi-i), I think you are out of luck.

 

[IvanTehFennec]

If the video cards do not have an analog output (dvi-i), I think you are out of luck.

Turns out, they both have 1 DVI-I and 1 DVI-D, once I figured that out, I now have four running, and actually got the onboard graphics working alongside it. Jeez, if I had only sat down and put some actual thought into it, I could have had this working forever ago.