One thing you might have missed since I'm always editing posts...Well, that is a great idea. I'll dig in the biostar bios to see if there is an equivalent setting. Thanks for spending time to help me. BTW the BIOS HW Monitor reports the lower of the two readings.
I've never been certain if it's been removed or not but Ryzen used to have a 10 or 20 degree offset from Tdie, to be reported as Tctl temperature. They'd do that for high-powered CPU's, like the 1800X, to assist fans by anticipating for cooling somehow. I thought that had been stopped with later BIOS' though. It's not that way with my 3700X.