One Vega 56 referent (64 bios, samsung mem) have hardware errors:
[48C, fan 71%]       ethash: 48.36Mh/s, avg 48.54Mh/s, pool 47.27Mh/s a:9112 r:0 hw:164

already lowered clocks and mem in Overdrive Ntool:
960/850 core and 1055/850 mem

memtweak:
--CL 20 --RAS 30 --RCDRD 14 --RCDWR 12 --RC 44 --RP 14 --RRDS 3 --RRDL 6 --RTP 5 --FAW 12 --CWL 8 --WTRS 4 --WTRL 9 --WR 14 --REF 17000 --RFC 249

Another card hash 49.1 with same memtweak and 976/850 1075/850 without hw errors.

Any recomendations?

txs