Quote from: Red_Wolf_2 on August 05, 2014, 01:22:23 PM

And again, the return of the dreaded incessant beeping. Same errors again!

Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.450000] usb 1-1: clear tt 1 (9041) error -71
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.460000] usb 1-1: clear tt 1 (9041) error -71
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.470000] usb 1-1: clear tt 1 (9041) error -71
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.480000] usb 1-1: clear tt 1 (9041) error -71
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.490000] hub 1-1:1.0: cannot reset port 1 (err = -71)
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.570000] hub 1-1:1.0: cannot reset port 1 (err = -71)
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.570000] usb 1-1: clear tt 1 (9041) error -71
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.580000] hub 1-1:1.0: cannot reset port 1 (err = -71)
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.590000] hub 1-1:1.0: cannot reset port 1 (err = -71)
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.600000] hub 1-1:1.0: cannot reset port 1 (err = -71)
Tue Aug 5 20:38:32 2014 kern.err kernel: [53274.600000] hub 1-1:1.0: Cannot enable port 1. Maybe the USB cable is bad?

Still no word from Bitmain... Is anyone else experiencing these errors?

Some people have gotten bad control boards. You might want to try switching boards, if you have more than one unit and both of them don't have the issue.