Is that what is going on with my EVGA Geforce GTX 970 4gb when it looks like just one of the 2 fans are spinning? I'll have to Google it and see, because I was about to go ahead and do this. Not because it overheats, as 2k scaled to 4k resolution benchmarking never takes it over 79c, maybe touching 80c without throttling. I'm a moon, but I don't think that is hot. Seen 100c/213f on my Lenovo, but it was an i7 processor with switchable graphics from Intel to AMD R9 GPU. And without good ventilation from beneath, it was easy to overheat… was scary!
Anyways, thanks for the likely answer to a question I've had.