Guys, if you have good memory cooling cards there are some good news.
Original idea from overclock.net's gupsterg and Nuke33 and me.
We found a way to overclock HBM2 memory further.
All is done via softpowerplay.
Seems it can oc stable to 1150-1170 mhz.
eth speed goes to 46.2+mhs (old 44.2).
xmr goes to 2150+h/s (old 1990).
It is Vega64 LC 1408/1150@905mV
No other tweaks except memory speed boost applied.
Consumption increase is negligible.
Disclaimer! This is only tested for few hours. No responsibility if you'll burn you cards.
WOW that is impressive! Good work rednoW