I search and noticed someone had a similar issue but they had to remove their sound card to solve their issue. Unfortunately I don't have a sound card to remove.
i7-3779k
32 GB Ram
1000w PSU
I have 2 MSI GTX 680 Ligtning's that I am trying to SLI. Both show up in Device manager and show in Nivida control panel but NO option to SLI the cards (See image below)
Let me start off with a bit cause I have tried alot and reverting to different fourms now.
Here is what I have done:
-Installed current, beta, and old drivers (fresh installs with driver sweeper)
-Tried 4 different SLI cables
-Plugged in Sata Power to the ATX4P slot on the Mother board
-Installed each card individually into each slot to see if they work (They do as single cards)
-Used a friends MSI GTX 680 lightning edition to try and SLI (still did not work)
-Did a CMOS reset
-Updated mobo Bios to F11
-Updated mobo Bios to 12e Beta
-Updated the GPU cards to the same Bios
-Installed one card, rebooted, shutdown, installed 2nd card, rebooted (still nothing)
-installed both at the same time ( nothing)
-installed one monitor to one card (top and bottom)
-installed 2 monitors (2 to 1 and 1 to 1)
The only thing I can think of is that PCI-E slots are not running correctly (see GPUZ BUS INTERFACE) One is running at 8x and the other is running at 4x.
Bad board?
Pics below are GPU Z of both cards and a picture of NVIDIA control panel.
