...never got above 550 in linux until I did a memory strap (1500 copied up), and now I'm getting solid 600 on stock settings. They run pretty hot but I think that's due to crappy reference design fan.
I have ~570h/s on 2 cards and 630h/s on the 3rd. Didn't use overclocking yet. What tool did you use to change the memory strap? Do you experience crashes like "GPU DEAD" or system hangs after a couple of hours?
polaris bios editor. which works on the elpida 470 but not the 480. every once in a while i get a dead card, no system crashes at all. part of the reason I run from console, it's the desktop and display manager that make things complicated.
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