Both motherboards can support three graphics cards.
Both motherboards can support three graphics cards.
Both options can manage three cards. They don't need to rely on CF/SLI. The listed motherboards are available at the provided links.
Absolutely, that makes sense. The third position will need to be reduced in capacity...
I haven't attempted to place three cards on a board before. It doesn't matter much—it's just for F@H.
Sure, it doesn’t really matter much since it’ll just sit there for a while. I’m also considering the Haf XB with fans near the GPUs.
Uncertain about the setup. Mines are placed near a small TV cart. Avoiding cards above 70c feels right. Proceed with throttling. Found a fan at the back functions well. Tested placing it on top but it didn’t help much. Feel free to try different arrangements.