No one seems interested, I have a solteck mobo which is younger than the CPU. ...... Obviuously when the motherboard came alive the BIOS was there accepting whatever it found.
I can't believe there will be any irreversible difficulty. At worst it will return to defaults and then you will have to make sure any settings apply to the new PSU............. I assume the motherboard can accept a faster CPU. It might be necessary to download the latest BIOS settings, and be prepared to update the BIOS, but that is par-for-the-course, with some top edge upgrades.
If it is worth the trouble you might make pencil jottings of the any tweaking of other features you did before you changed changed PSU.