fireberd
Well, things are looking up, finally. Got the new system up and running. Finishing up some file transfers right now to a different hard drive as I have a 3TB drive and the BIOS thinks its dying (its not). Only problem I've come across so far. As reported on the tenforums.com, I have a "digital entitlement" and was able to use the Win 10 OS drive from old PC and it is listed as activated on the new PC.
Awesome! Bob Bone recently reported that Windows 10 gracefully accepted a motherboard change he performed on his Windows 10 PC. No activation issues either! It's good to know that a clean install is no longer required to upgrade a Win 10 system