Bit of an update
I was running the miner with just chain 6 and 7 and 8 wasnt hashing
I have had the miner off for the last 3 weeks and today i turned it back on
But before i turned the miner on i took all the hashboards out to c if theres any damage and they look fine
This time i only connected and powered on chain 8 the one that wasnt working and to it started hashing fine at 4.5ghz so left it hashing for an hour and workd fine with only 3 hw and tenp at 68
So thought wow it magicaly fixed it self
Powered off
Connected chain 6 and 7
Powered on
13.5gh wow
Worked for 15 min and back down to 9gh with chain 8 not having any hashing u der gh/s (rt)
Surely it cant be the hashboard if it works fine hashing by it self?
I tried another psu before and it didnt fix the problem
Could it b the controller?