OK this seems to work, I'm getting high 50's GH/s, close enough to 60.  But it does kick out a bunch of "AMU: Invalid noonce - HW error" messages, at about the same rate as it solves hashes.  At lower voltage and frequency settings it gives no hardware errors but lower hashrate.  I've only been running it for 5 mins at this new frequency, so maybe it will settle down.  Should I worry about these hardware error messages or is this normal?


I tried that last night before I went to bed and it was still running this morning so it appears the zombie problem is solved.  I think I may have this thing working more or less properly now as long as the HW error notices are not an issue.