Just Loaded up your miner on three of my pc's with the default tuning taking around 2 hours on a Ryzan 5 3600 and a I7 7700k.
My 3960x Threadripper took 8 hours to get through the default tune.... I'm assuming because it has 48 threads and not 12 like the AMD 3600 its taking 4x longer?
or am I missing something that's not quite right?

Thanks!   

If you have a Windows Rig go to Settings then System on the Display tab go down to Graphics settings, turn Hardware-accelerated GPU scheduling off.
Restart your pc, and CPU usage should be right down now.

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Using NBMiner v39.7 on one of my 6x3060 V2 lhr rigs.

Getting 36.26MH/s to 36.80MH/s on all 6 3060 cards. miner says power draw of 706w but I would assume its around 850w-900w at the wall.
Total Hash rate of NBMiner for 6 cards is 219MH/s and the Pool hash rate for the last 4 hours is 226MH/s, I'm quite impressed!
 
Overclock setting on all 6 are 70% power, -502 core, +1300 mem, fan speed 90% (summer time)
core temps are 45c,45c,42c,55c,46c,40c and memory junction temps are 58c,59c,54c,67c,56c,55c.

If anyone has any tips to push them a little further, I'm keen to test it out!
   

[moderator's note: consecutive posts merged]