Bitcoin Forum

I just got a used A2 Terminator a couple days ago.  It had been running just fine until I noticed that my hashrate dropped after about a day of mining.  Found out that one of the blades had failed somehow.  I tried rebooting, resetting, and all that stuff, but the one blade is just no longer detected.  When I boot the unit, the top 4 LEDs (LED-UA1, LED-UA2, LED-UA3, LED-UA4) on this problematic blade blink but the other 4 don't (LED-UB1, LED-UB2...).  These 4 LEDs will just continue to blink while all the other blades begin hashing.

Anyone ever encountered this and find a fix for it?  Here's a picture of the LEDs on the blade.

https://i.imgur.com/rM4Y5pq.jpg

I had this once on a 88MHs A2 Terminator but it went away with a power cycle.
You should first check the power and USB connectors going to the problematic blade, I could well imagine that they became lose in transport or in the first hours of operation from vibrations. Also check if the problematic blade gets warm (= has power).
Checking the output of lsusb and dmesg in the RPi might give you further hints on whats wrong.
HTH

Hi guys,

Any News on this? Or anyone already solved this problem?
I'm having the same Problem, just that there are different leds affected...

regards,
Andy

I have about 10 hashboards with a similar problem...

I can tell you that you more than likely have a blown ASIC on the board, I have see this LED combination on the old blue boards when you have a failed ASIC. I have repaired a few of these.

Right, like the threadstarter i also have blue boards.
One of the six single leds round the board is off aswell - so one of the asics should be defective.

If anyone has some spareboards to sell, please contact me via pn.

thanks,
Andy