Question BIOS boot loop after updating the BIOS and installing a new CPU ?

[BillWiTheScienceFi]

I've just installed new CPU after I updated the BIOS beforehand, and yet it will only boot to the BIOS.
I tried changing to CSM mode but that did not work. Boot Device is set to the HDD as #1

Any ideas?

 

[kurdtnz]

Please list your full system specs.

 

[BillWiTheScienceFi]

Please list your full system specs.

MBD: B450 Tomahawk
CPU: changed from Ryzen 2600X to a Ryzen 5600X
GPU: RTX 4060ti
SSD: changed from WD 500GB M.2 to a Samsung 2TB M.2


[Mod Edit]

I'm wondering if it has anything to do with me copying Windows to my new M.2 SSD ?
My mobo only has one M.2 slot so I changed the old one that had Windows on it and put in the new one with the copied Windows. Boot order is hard drive first.l, is that right for M.2 ?