Quote from: trexminer on Today at 01:18:14 AM

Quote from: NikiKa on February 05, 2021, 06:07:04 PM

Hi everybody!
From few days all my rigs with GTX 10 series gpu go unstable with dropped hashrate aprx. 1-2 mh/per gpu and some invalid shares.
No changes in OC / CC 120 , MC 500, TDP 65 / , memory page / gpu mem* N + DAG / , T-rex 0.19.9 , temp : 49-51 C , no any changes.
The rigs is clean , well ventilated, fiber-optic internet 150-200 mbps.
I try with old Nvidia driver and T-rex version - same issue.
DDU it and reinstall - the same.
After this issue I lower small OC 1080 and 1080Ti to can run stable.
Previously the rigs was like a rocks mined in ethermine EU without any big drop for week without restart.
Other rigs / 5700 and 3060 Ti / have normal hashrate fluctuation.

before : after:
1070 : 30-30.50 28-28.50
1080 : 37-37.60 35-35.90
1080Ti : 47-48.50 43-44.60

Tomorrow i think to reinstall win 10.
Does anyone have an explanation or guess?
Regards !

Are you sure it's not caused by ETH epoch change and DAG size increase? Pascal GPUs tend to lose hashrate when the DAG grows, it's a very common issue. Some people say you can slow this process down by increasing core OC and / or power limit.

Hi trexminer ,
first want to thank You for excellent miner !
I secretly hoped that this was not the reason but I have to get accept it .
Have a nice day !