Good on the A3s. Pity it's second batch but the price was not the worst. I wouldn't touch D3s for some time until a few new tokens arrive on X11 - they're just way too powerful and too many around to be making money. They chew juice but behave nicely on Blissz firmware. I have a copy of that for D3 and L3+.
I recently cleaned mine and had endless hassles getting them going again. I had to take the hashboards out one at a time and clean them properly with a pantbrush, especially on the air intake side. The humidity creates corrosion on the board and causes conductive dust to sit on the components - not good for sensitive electronics. They went from totally misbehaving to working 100% again.
yup...done the same with mine. used CRC contact cleaner spray after brushing dust and dirt off heatsinks, unfortunately still having issues with a few boards not hashing/tried Blissz firmware(NO FEE version and the dev fee versions)===nada/nothing!! undervolted/overvolted/adjusted various freq still nothing. out of 6XD3 machines i have only 70.5GH working, all mining zpool. getting more L3's landing within a week or 2 will have to very reluctantly sell/store the D3's until i figure out the power capacity issue
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