The 4 Mh/s bug ... Connect a monitor to it. If doesn't help switch the monitor to another card and so on.. If still doesn't help, use DDU and reinstall the drivers.
Thanks I'll try that. Problem started when i tried to add 7th gpu to my rig. My mobo went crazy. I was using 6 gpu fine, lol. Now I'm trying to fix that card but not sure what happened. It didn't boot, possible I'll need to re-flash bios.
I'll update my post for others.