the Hynix MJR and RX570/580 can run stable 33/34mhs
MJR ram voltge 900 and speed 2300 @ core 1287 on 900 mv ( runs on xfx with 72w gpu power )
its a XTX rx580 same as RX470/480
my nitro rx580x have XTR and uses lot of power on same settings 92w.
my 2250 strap drom Hynix MJR on polaris20 XTX 777000000000000022BB9C00B5E67C49C0551015BF8E360C006686000C081420EA8900AB030000001A163745C3313F1A
my 2000 trap from Micron @ Sapphire Ntro+ SE
777000000000000022AA1C0073626C41B0591016BACDC6090060060004061420EA8940AA030000001914292EAE2E3B16
this straps lower the voltage and wattage.
micron runs core 1287@893mv mem 2300@937mv and I/O mem-contr @950mv @ 91 watt with this strap
Hynix run core 1287@900mv mem 2300@937mv and I/O mem-contr 950mv @ 72 watt with this strap.
you can test this strap on hynix, its stable to 2300 mhz, al straps from PBE have here generated fault on hardware in teamredminer, this strap not, its bit slower than the PBE only it makes more Bandwith.
Ps: the XFX with hynix ram can run 2300mhz hynix on 900mv i/o memcontroler voltge with this strap
also i run on B mode with ETH, the Dac Uses the full mem
ory.