Quote from: Wasp0 on September 04, 2018, 04:34:32 PM

Quote from: Tailgunner on September 04, 2018, 04:32:17 PM

Quote from: starmax on September 03, 2018, 02:10:04 PM

Just got my batch 2 Mini yesterday. Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool). Getting around 14.8Ksol/s. What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz. No HW errors, just slow hashing. Anyone else experience this?

I noticed the Z9 mini seems to hash slowly unless you select speeds in specific increments. (usually 6 mhz) the only reason I know this is because after I experienced the same thing as you on my manually adjusted batch 2 mini, I looked at the OC options on my batch 1 mini and it looks like they usually let you select in increments of 6 or 7 mhz. I don't really know why but I'm guessing it's a memory timing thing. Try adjusting with the following exact increments until you get stability. 700, 693, 687, 681, 675, 668, 662, 650, etc.

Is that starting at 700 and going downwards or starting at 600 and going up? or does not make a difference?

It doesn't matter technically. but I would Just start from the highest and as soon as 1 hashboard crashes restart and drop it to the next highest and repeat so you can quickly find the maximum stable. It may take 12-24 hours until it faults out so don't assume it's stable after just a few minutes.