os - hiveos
miner - t-rex
card - 1 x 3090, 5 x 3070
my card doesn’t boot when i restart my rig. it shows my system is online but with no hash…
Same here, started last night, both Nvidia and AMD cards.
lolminer, gminer and i think rest of them too.
I can see hashes for awhile and then nothing, no help for downgrading, rebooting etc.
I changed my riser and updated nvidia drivers. That worked for me. Try it !!
Thanks for tip, I will try it 
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