Quote from: jbmod on November 22, 2017, 03:34:22 PM

Quote from: halfpipe on November 22, 2017, 02:32:17 PM

First of all, thank you Blissz for the work. My first message here at bitcointalk, cheers!!!

Is that normal having a hashrate of one board disappearing and coming back all the time?

The power usage still same when it happens but as I am mining in nicehash and when I see there is a decrease in hash rate also on their dashboard, what can it be? I am running my D3 at about 9500Gh/s(only two chains) as I am using a pc PSU while they ship APW3++.

I noticed the same phenomena... I'm using two D3 with regular PC power supplies (because Bitmain APW++ were not delivered), one PSU capable of 1500W the other one with 1200W. The one D3 with a 1200W PSU shows some strange behavior, while the other one runs with 0 HW errors all the time.

The strange behavior is:
Chain 1 has sometimes only 55 ASICs, sometimes 54 ASICs, sometimes 60.
Sometimes Chain 1 is completely gone and non-existent.

I found out that a reboot sometimes solves this issue, must be a problem during initialization. I tried a lot with voltage settings and frequency and was able to get it somehow stable with at least 60 ASICs - but I get a lot of HW errors and (probably miscalculated) 9500GH/s on Chain 1. Can't be true.

But let's try to switch to the APW++ PSU and see if this makes any difference.

are you running on 110V or 220V? if its 110V then the 1200V is not able to supply proper power.