Not detecting 2nd Graphics Card

hoopertrevor

Reputable
Oct 22, 2015
2
0
4,510
Here we go buckos:

I used to have this EVGA GTX 560 TI 2gb sitting in this puppy and it worked totally fine. I upgraded about a year ago to a PNY GTX 770 2gb. Recently I decided to do a little heterogeneous graphics by placing my old GTX 560 in the second PCI-E slot. I've been told this works even without an SLI bridge (one card powers graphics and the other powers physx). Hopefully you've heard of it. Anyway, I realized that my power supply didn't have enough 6-pin PCI-E cables so I purchased a splitter and just put that in. Both cards are now fully powered. You may be asking, "Are you sure they're both powered?" And I say, "Well both of their heatsinks are running (fans are going)." The 560 is not detected whatsoever. Even in driver manager it's not showing up. My 770 is pretty difficult to get plugged in because it's almost too big for the case, so I'd rather not move it to check the second slot. Help meh.