post the kernel with the 3 cards connected ... you will find this (my for exemple, just have two hashboard)
read chain
- hardware info:
minor type: 2
chip level: 0
bom version: 0x10
pcb version: 0x39
fixture 8pattern result: L0
read chain [1] hardware info:
major type: 0
minor type: 2
chip level: 0
bom version: 0x10
pcb version: 0x39
fixture 8pattern result: L0
and, I am almost sure that the 3 cards do not have the same version, which results in the original firmware controlling if the 3 cards are coded identical, if this is not the case, it stops the hashboard , I pence that you bought a second-hand miner with 3 different cards from diferrent miners ...
