I had SLI working literally 2 hours ago and everything was fine. I decided to swap my graphics cards, because I was suspicious of the outputs on one of them not working correctly. Then everything went to Mars. Now, whenever I boot into Windows, it actually uses the integrated graphics. If I try to open the Nvidia control panel, it won't open. It never even is seen in the system tray (bottom right corner). The device manager says Code 43. Also, only my 1 monitor works (HDMI) while my other does not (Displayport).
Now everything completely changes if I boot with Integrated graphics. The Intel HD graphics show up in the system tray (as it should, though it did not before). The Nvidia control panel also works, for some unknown reason. And, on top of all that, even though I had to plug in a third monitor for the integrated graphics (DVI), the other two monitors were working, even though they were plugged in through the graphics cards.
My Nvidia drivers were up to date, but the last update was installed a week ago. Each graphics card worked independently before, in either slot. This very nearly had me pulling my hair out. I'm about to attempt booting into Linux Mint to see if it works in there, which would confirm a Windows issue (which I am hoping for).
Intel i5 4690K @4.5GHz
2x MSI GTX 970
MSI gaming 5 mobo
16GB RAM
750W PSU
Now everything completely changes if I boot with Integrated graphics. The Intel HD graphics show up in the system tray (as it should, though it did not before). The Nvidia control panel also works, for some unknown reason. And, on top of all that, even though I had to plug in a third monitor for the integrated graphics (DVI), the other two monitors were working, even though they were plugged in through the graphics cards.
My Nvidia drivers were up to date, but the last update was installed a week ago. Each graphics card worked independently before, in either slot. This very nearly had me pulling my hair out. I'm about to attempt booting into Linux Mint to see if it works in there, which would confirm a Windows issue (which I am hoping for).
Intel i5 4690K @4.5GHz
2x MSI GTX 970
MSI gaming 5 mobo
16GB RAM
750W PSU