ahh, finally, i can sleep. after long haul of testing.
been trying to get 11.5 stable, aiming 0 incorrect shares but i failed.
no matter how i downclock memory, add voltage, etc, still no luck. hwinfo shows 0 memory error for 24hrs, still, 11.5 keeps sprouting incorrect shares at random gpus. it leads me to the point that im almost losing 3-4mh/s per card. meh, more like stock settings but with incorrect shares.
then i finally downgraded to v11.0 (using -asm 2 btw as it yields me better hashrate)
reverted my old stable OC
now im enjoying 0 incorrect shares for 24hrs+, more hashrate, and improved effective pool hashrate.
here are my specs btw:
rig1: 13pcs rx570 red devil (hynix;elpida) 386mh/s(with 11.0)
rig2: 13pcs rx570 nitro+ 4gb (samsung) 395mh/s(with 11.0)
os: win10 1709
driver: adrenalin 18.3.4
(with 11.5, i almost downgraded to 360mh/s per rig, still gives me incorrect shares at random gpus)
with 11.0, i only get ~1mh/s total rig fluctuation
with 11.5, even though using -oldkernels, i get big fluctuations, around 20mh/s total fluctuation and it takes too long to revert to original hashrate.
11.5 gives flat reported hashrate with new kernels, but yeah, cant make it stable without sprouting incorrect shares.
so thats all about it. i dont blame no miners, but its my personal experience.
some doesnt care much about incorrect shares, but i do, it translates to wasted hashrate.
i believe, problems to me started at v11.1 and beyond.
It could be your Bios mod. I'm running v11.5 with the Adrenaline v18.3.4 drivers on two rigs and it's very stable with zero incorrect or invalid shares. I even increased my overclock on my ASRock H110 Pro BTC+ RX 480/580 13 card rig and got an extra 8 MH/s. On the 6 card Biostar TB85 rig I got an extra 4 MH/s.
I'm using the Polaris Bios Editor 'One Click Timing Patch' for all my cards. The only change to the PBE bundled performance timings I made was replace the Samsung UberMix v3.1 timing, which is too aggresive with this one that is much more stable.
777000000000000022CC1C00106A5D4DD0571016B90D060C0060070014051420FA8900A0030000001011333DC0303A17
-ethi 8
-cclock 1200,1150,1200,1200,1200,1200,1200,1200,1200,1200,1200,1200,1200
-mclock 2050,2100,2100,2250,2150,2150,2150,2250,2225,2250,2150,2250,2100
-powlim -10,-5,-10,-15,-10,-15,-10,-10,-10,-10,-10,-10,-10
-cvddc 950,950,950,850,900,850,850,900,900,900,850,900,900
-mvddc 950,950,950,850,900,850,850,900,900,900,850,900,900
-ethi 8
-cclock 1150,1150,1200,1150,1200,1200
-mclock 2075,2000,2075,2075,2075,1950
-powlim -17,-10,-10,-15,-15,-15
-cvddc 925,925,925,925,900,925
-mvddc 925,925,925,925,900,925
