Quote from: NavyCuda on August 07, 2017, 11:28:49 PM

Quote from: boysie on August 07, 2017, 08:41:27 PM

speed report

9.8/latest AMD driver (dag fix)

480/8G = 29MH/900MH dcr
470/4G = 28.8MH/635MH dcr = issue with stable hash, keeps dropping to 14MH
570/4g = 30MH/660MH dcr = issue with stable hash, keeps dropping to 14MH
Vega FE 16G = 37.5MH/1.3GH dcr = issue with heat, any thing over 60c throttles down to 32.5MH/900MH dcr

Cards used: REF 480 + Red Devil 8G 480 + Nitro+OC 470 and 570 4GB + Vega FE 16GB Air.

Boysie

I had the same observation. With genoil, 1602MHz core and 1100MHz hbm2, before 60C it would report 41MH/s. Over 60C it would report 31-36MH/s.

Have you had any luck setting a lower core clock? I've tried changing mine and it drops the GPU down to 852MHz core and reported 31MH in genoil and 36MH in claymore. In my house at the current temperature if I run claymore's miner at 1602/1100 it gets up to 70C and reports about the same hash rate as I get at 852. I really want to play with down clocking but so far no luck. So for now I'm running 852MHz core clock to keep my temps at 60C. my ambient is 40C.

seems to be a windows driver issue, Wolf0 says it works in Linux.

Water block on the way will fit end of aug when it arrives and try and keep this baby cool and run at 40c and see if I can get it over 40MH but I suspect the mem speed will limit me, unless its heat limiting the mem in which case I might be able to stretch a little more from it. once they release rx vega there should be a driver update and hopefully down clocking core will be available and heat will get even better