Thanks, indeed it worked.
That's interesting. I'd missed that. I assume it has better power management and therefore lower temps and ease of reaching high clocks?
1100 isn't attainable on my current BIOS, but I've chosen 1045 GPU core to stop it thermal throttling under repeated benchmark runs - normal gaming I can easily do 1075. HBM ... I currently have it at 615Mhz, though I'm not sure if it actually applies any increments between 600 and 666Mhz settings, and Afterburner 'only' offers up to 650Mhz.
This is all on air, with the original cooler.
I didn't try overclocking the HBM before, so don't know how much effect the following has had, but this spate of OC'ing interest was predicated by it beginning to thermal throttle more heavily. So I took it apart, cleaned the original TIM off (of which there was FAR too much) and applied Liquid Metal Ultra to the die and HBM. No way to measure HBM temps, but the GPU temps dropped massively, and it stopped throttling at stock clocks. I suspect the reason I can get such an HBM OC (i.e. 600+) is because 1) the original TIM is gone and 2) LMU provides much better contact with the heatsink on those tiny HBM modules than any conventional TIM will.
Anyway, seems to be performing well ahead of stock 1070s / Fury Xs / 980Tis now.