So long story short, my MSI GT80 Titan SLI laptop's power port died (more on this in a minute). I took it to a local shop to be repaired a month ago and just got it back today. The power port seems to be working, but both of my video cards are buggered. Even after repeated attempts at reinstalling the drivers, the latest ones and old ones, both kick a code 43. Disabling and reenabling them allows just one of them to work, but as soon as the other one is enabled the screen goes blank and the computer dies. Is this software or hardware related (I'm presuming hardware related)?
Also, the original power port itself appears to have been designed to fail. The pins inside the power port were sheared off cleanly along a what appears to be a grooved line. I've reported this to the FTC, but I was wondering if anyone else had encountered this?
Update: it was the nvlink that wasn't seated correctly.