Hi @lightfoot, I'm hoping you can provide me with some assistance with my newly acquired, and newly broken, titan mining setup!
I bought the controller, 3 PSUs and 5 cubes recently and got everything up and running with 4 working cubes - the seller advised me that the 5th cube seemed to kill the controller so I ran the system for a couple of weeks mining at around 110 MH/s. I didn't want to muck around with the system, trying to coax the cubes to run as efficiently as possible, and get the final cube to play, until I was confident that it all worked.
After around a fortnight, one of the PSUs died - the one that controlled both one cube and the controller board. I didn't have a spare PSU, so I removed one cube from the system and changed the PSU connected to the controller to another. It was simply one molex off and one molex on - simple...
When I powered on the system again, the magic smoke immediately escaped from my Raspberry Pi. Totally dead.
I have just got hold of a new RPi and this seems to work fine with the old micro SD card. I tried plugging this new Pi into the controller board and powering the Pi (with its integral micro USB B socket) and one cube up, but the controller board's display doesn't power up, so I guess I need to power up the controller board with the molex connector to get things running again, but I'm scared! I don't want to cook another Pi!
What could have caused the Pi to cook? Faulty PSU? Faulty Pi that would have died anyway? Is there way way to power the controller board and Pi separately?
What would you advise?
Once I get the system up and running again, I'll probably be sending you the board from the troublesome cube!
Thanks in advance.