It seems drivers are unstable at this number of cards.
If 11.9 works fine you can try to add "-eres 2" option, miner will use old-style DAG generation (since v12 it tries to reduce GPU memory used for DAG in most cases, non-zero "-eres" option value disables it).
yes! -eres 2 make it work! only LA is relatively high. but anyway thanks for advise!!!
btw, in first post it is written that it is default option:
-eres this setting is related to Ethereum mining stability. Every next Ethereum epoch requires a bit more GPU memory, miner can crash during reallocating GPU buffer for new DAG.
To avoid it, miner reserves a bit larger GPU buffer at startup, so it can process several epochs without buffer reallocation.
This setting defines how many epochs miner must foresee when it reserves GPU buffer, i.e. how many epochs will be processed without buffer reallocation. Default value is 2.