Hello everyone
Had some problems with one of my Antminers S7, Gh/s were dropping and machine was beeping after few minutes and restarting constantly.
I noticed that the HW numbers were to far from itch other, and i guess that was the problem.
I tried several restarts, resets, new firmware, change frequency but didn't help.
Only thing that helped was
unplug for 10 min from psu, then plug and power up.
It was the last thing that i tried after several hours of tests and thought about sharing it since this really helped me.
Hope this Helps you to