Hi.

Had a problem for a while with this 40M machine.
Seemed to be the USB, well that is how it looked as sometimes simply plugging in and out sorted it.
I was using various cables in various set ups.

Now it will not send nor receive - though it still gets hot and the fans spin.

I even replaced USB board inside with same one from my Zeus 10M rig.

CGMiner 3.1.1
EVGA 1300
F2Pool - LTC

Any help is appreciated

Thank you