I replaced the mobo and the cpu. Everything else is the same. I was amazed to find that with the existing SSD image unchanged, the system booted and worked perfectly with the new mobo and cpu. ...

That could be some of the confusion. It is a Gigabyte mobo, it is from 2010 and I am running DDR3 - 2000 DRAM. I will try to get a screen shot but what I quoted is what it is showing. I think the...

All those values came from the same section of the BIOS. I just copied what was there.

Thanks. This is what I get from the BIOS. BTW, it started right up after restart and looking at BIOS.
CPU temp 40, System temp 39, Vcore 1.204, VDDR 1.584, +12=12.365, +5=5.053 did not see any...

Windows 10 Pro desktop. Runs fine when it boots. Will run for days with no problems, recovers fine from sleep. However, sometimes (not always) after being shut down for a day it will not boot. ...