SMSO is reporting 5,600 mh/s which has not changed and Ethrmine average hash rate is 5,175. That's a bigger then usual difference, poolside hash rate use to be around 5,300 - 5,500. Seems to have been like this for over a week and I do not have any 4GB cards. I have one 3080 running on windows not listed on SMOS.
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Are you using PhoenixMiner?
My observation, SMOS and poolside hash reporting is quite close using PhoenixMiner.
Btw, I dual mine ZIL and good to note that ZIL went +50% this past week and added more sats to my stash.
My SMOS parameters below (ethermine+rustpool and Nicehash as backup):
-ttli 77 -rmode 2 -pool sg-zil.rustpool.xyz:8008 -wal zil135su7krsueafdgdlmrzw8ynjz5530hlvc8xt2x/0x2DC6330ffc326eF5d9878Ec99De0d9CFC07D144A@asia1.ethermine.org:4444 -pass 8G -worker $rigName -proto 2 -rmode 2 -pool2 stratum+tcp://daggerhashimoto.usa.nicehash.com:3353 -wal2 33eWrdGqmT52MtaeUce8DV7NvTcUXni7aY -pass2 x -proto2 4 -stales2 0