Guys its been at least 2 out of 10 of bitmain that were used (much dust), and also overclocked!
Are they serious? How can they have warranty when they send them o'cked?
Support also sucks, sorry.
Bitmain, any comment on this

Check this guy:

People-Bitmain is using miners for own benefit by "checking" if they work. End of story. Why all miners before your own setup have credentials like:
pool-xxx.xxx.xxx
worker- anntminer 123Dont be surprised about any of this fact. Some miners are from 2014 batch and some coming still from 2013??? This means they was mining for them, why you think price is low and they can still deliver units? I stopped to complaint about dust and overcloked units. Whats the point?
This is 5 units on sale in UK if anyone interested from me:
https://bitcointalk.org/index.php?topic=560828.msg6117056#msg6117056All taxes paid and ready to ship.
The pool info is there because they didnt erase it after testing.
Every manufacturer should test before shipping out but some actually don't.
As to how long they are "tested" who knows.
But it's not like they advertising absolutely new guaranteed only turned on to make sure it works units. Knc is same as bfl asm ct etc.
NOONE should expect a brand new unit from a major manufacturer. The only time you get a new unit is from a company that doesn't test all units going out. Like some small chinese clone companies.