I recieve my s4 b2 today, but its Dead On Arrival, I think the PSU is dead. My first disappointment after I purchase alot of bitmain miner.
Send RMA request lets how it goes...Btw can I use my normal PSU to run the machine?
Thanks
Sorry for that, just send an email to my email address:
ting.shao@bitmaintech.com with your order id or tracking info i will check your order, the new B2 should have been upgraded with new PSU.