GTX 660s won't recognize as SLI linked

Sep 27, 2013
3
0
10,510
I cannot seem to get my two identical GTX 660s to work in SLI mode.

Firstly, a link to the cards in question:
GTX 660 Cards

Here's what I've done and know:
1. The cards are identical. I bought them both at the same time from the same seller on Amazon and they came in identical boxes.
2. I've flashed my BIOS and have the most recent edition.
3. My GPUs are at their latest updates and my last update was a clean installation.
4. My GPUs are seated correctly as they show up and seem to have no problems being recognized by the motherboard itself.
5. The bridge is not the issue as I've used two separate bridges now.
6. The GPUs are SLI ready. Same with my motherboard.

I have no idea what to do. Please be patent with me and very thorough as I am not the brightest blub in the shed, if you know what I mean.

Specs