I bought a few of the Asicminer 38GHs cubes frmo eBay last year, both have been working well until recently.
I moved one of the cubes onto a bench with more airlflow, after an hour I popped back to check on one of my scrypt miners to find a nasty smeel coming from the loft.
The nasty smell of burn out components stank out the loft
Thinking the PSU had died I pulled the mains plug and continued fixing the scrypt miner.
A few days later I went upstairs with a new PSU to swap out the dead one on the cube. Turns out it wasnt the PSU, it was the cube
I thought you may like to see a few images of the charred remains. In places it has burnt completely through the PCB.
Believe it or not the blades actually look OK, it seems the heat/damage is isolated to the power connector area.
I have not tried the blades from this miner in my only remaining one as I didn't want to risk blowing it up as well.
If there is anywhere I can locate a replacement backplane it would be good. If anyone has any ideas on a replacement please let me know.
[Mod note: erroneously claimed "bitmain" when these are clearly asicminer boards]