Hey all.  I ordered 4 units and 1 of the four units 8 asics never init; they are not over clocked.  Ive had my fair share of running S1's so was used to the occasional reboot to resolve asics that drop offline.  However these never come online and I've rebooted so many times I'm just ready to send it back for replacement.  

The question i have is, how long does it generally take to receive a response back from bitmain?  My initial question was sent to them using the website form over at bitmaintech.com on july 30th, and also another message sent on august 3rd.  Im starting to worry at this point, thus me questioning the forums.  Has anyone successfully submitted an RMA request and have any comments from experience on the process in general and how long do things take to get moving and to receive replacement?