Hi!

I have received my U3 yesterday.

Unfortunatly the U3 will not work.

1. Plug in Power
2. Plug in USB
3. Device is recognized and installs CP2102 Driver

Starting cgminer --benchmark ( Ver. 0.4.9.1 ) No Device found
Starting cgminer --benchmark ( Ver. 0.4.6.1 from bitmain HP) No Device found

Replacing U3 with a R-Box or New RBox and there are no problems, cgminer is hashing


Is my Bitmain U3 DOA?