Video card works in computer not another

130077

Reputable
Nov 7, 2014
1
0
4,510
I have two GeForce GTX 670 FTW cards. I've been running them each in a separate machine, and they work fine. I ordered a 760 FTW to put in (PC #2), a new motherboard and processor. When I took the 670 FTW from PC#2 and tried to run it in PC#1, the fan on the card spun but no video. I tried swapping locations of the cards, using jumper cable, no jumper cable, a different jumper cable, still didn't work. Then I tried just using the 670 from PC#2 in the primary GPU slot on PC#1, and same problem. I put that card back in another computer and it worked fine with two different motherboards. The 670 from PC#1 works fine in the machine. How do I fix this?