One of my sticks from bitshopper is allways at cca. 10% HW errors. 8.5% was lowest I saw after 60mins and it stays arround 8.5-8.6%. I didn't tune anything but tried another way. Started at lowest clock @384, than @450... all the way up to 700, but allways is the same. VCORE=0.77V, VMEM=0.84V. I use Sipolar A-400 hub, only with this one stick in it for testing. Is it stick problem or should I try to tune it? Just need direction 'cause stock voltages looks ok, at least for clock speeds up to 600MHz...
Few sticks I have come across show this issue. Its rare, but the IO coms sometimes spit out garbage that is picked up as a hardware error, unfortunately no way to filter this out. As long as they hash fine you can ignore it (you just have to figure that 8.5% is 0% error for your stick when tuning).
Yes, stick is accepting shares, notable in bfgminer and on pool stats. And yes, it always starts with HW error no.1 on new restart, so it makes sense. Thanks.