Do they all have the same ram?
Sometimes they have different ram.
Thanks for the reply Phil! Much obliged.
How do I check ram?
Try reflash this card, first with original bios, then try modded bios. (try first without OC)
Had similar issues, and solved flashing.
I just hooked them up so it's factory for now. I'll try reflashing factory driver dl. Thank you.
Overnight it seems the speed has mostly normalized but the memory usage is still quite higher than the other 4 cards.