Quote from: carlosmonaco on April 21, 2019, 07:17:23 PM

Quote from: pbfarmer on April 21, 2019, 07:02:38 PM

Quote from: Kerppa77 on April 21, 2019, 04:21:41 PM

I have now run ~72 hours w/o any issues with 24 Vega64 GPUs(good and bad ones) mixed in 4 separate rigs ... CNR with core 1407Mhz /860-970mV , Mem 1080-1100Mhz/860-970mV.

I would say this is pretty stable setup. Pool side 24h avg hashrate fluctuates in the range 54,1-54,4 kH/s

--CL 19 --RAS 28 --RCDRD 12 --RCDWR 5 --RC 44 --RP 12 --RRDS 3 --RRDL 3 --REF 15600 --RFC 250

I am happy and have in my mind... "dont touch when things go smoothly".

Thats an insane voltage range, and I cant fathom how 970mv could possibly be necessary. Between 9 64s and a flashed 56, I run avg 834mv, none over 850, for similar clocks/timings. That puts me @ 178w per GPU at the wall.

At 970, youre running at least 35% higher power, meaning over 240w per card.

It sounds like you have some ppt issues or something, maybe youre running your SOC @ 1200mhz unnecessarily (it should be 1107 @ your clocks.) Although, even then, you prob shouldnt need much more than 925mv.

Oh ! I'm far above that number too.
Could you share your PPT tables and settings ?
Thanks

I'm on linux, and only use PPT (no additional settings.) But you won't be able use my PPTs on windows.