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Quote from: Ryancope123 on October 27, 2017, 10:09:47 AM

guys i just received a defective D3 unit, will bitmain pay for the return shipping costs?? there return process seems poor

Definitely try inspecting whats wrong first, you dont want to send the whole device, it will cost a lot, depending where are you located.

I am in the UK mate- the top hashboard is loosing its performance and throwing X instead of O its dropping to around 13Ghz. from 19.3

Sounds like Heat Hombre. These D3's are hot runnin bastards and they DON'T like running over 70c. Reset it and run your fans at 100%. I honestly think they are way hotter than S9's. A misfiring hash board, HW errors and xxxx's id very symptomatic of 70 plus c in the chips.

She is running at low 60's across all chips Sad

im at 100% and it's in a very cool enviroment, so i am lost

That being said, she is sitting back at 19 for over 4 hours now ! Cheesy

I think these 19Gh/s units are just overclocked to the tits. I'm gonna down clock mine. Seems to be causing a lot of issues for a lot of folks.

yes, they OC it
and its fucking hot. even in AC and proper ventilation.
in couple of hours, too many XXXXXX and one board losing its mind.

what i did, down-clocked to 500Mhz. Now running fine, temp down almost 8 deg C

What's the hashrate after downclocking?

18,008 ghz

stable so far
Elapsed
2d4h17m3

Fan set auto, running 47xx RPM. Highest Chip Temp : 79deg, was 92deg Celcius

I have my 5x D3 running at 17Ghz now, 4 of them are at speed out of the box, one was at 19ghz, i downclocked it to 17ghz. They are all 19,3Ghz. Will try your settings at 18ghz if they are stable at 17ghz tomorrow.