So ever since I installed the second gtx 670 on my rig. The display driver kept crashing once in every while. The gpu temp goes above 90 which is normal for a gtx 670 on a matx mobo. I had manually set the fan speed to 100%. I tried playing crysis 2 but the game crashed every time after 5mins. Then when I tried rolling back the driver to 300.42 drivers, the computer refused to load nv control pannel. Message said"You are not currently using a display attached to a Nvidia GPU". I went to the device manager and the gtx 670 had a warning sign said "error 43, system had reported problem with the device. gpuz couldn't detect anything and msi afterburnner reported no supported device.
so, I ran the following troubleshooting
1- Card A in slot1, card B in slot2- error message, can't install driver
2- Card B in slot1, card A in slot2- Display driver loads but pc extremely slow and crashes.
3- Card A by itself, the same error message as 1
4- Card B by itself, system works fine.
5- Card A on another rig, I get the same error message as 1and 3
Now I am thinking of RMA card A. Is there anything else I can do or should I RMA it tomorrow? ty in advance.