Wow, that's really weird. I'm glad that your stutters are gone but I'm puzzled as to how the motherboard caused it. Maybe there was a problem with the RAM interface or maybe your video card slot.
In any case, that's great news and I'm glad that you can enjoy your PC again.
@Avro Arrow @CelicaGT
Well, it seems now that the stutters have returned. I'm quite sure that they never actually went away, just got signifcantly better with the MOBO swap.
I noticed that when I was streaming a game to my friend in Discord, my games stuttered much more than when not streaming. So then I decided to update my new motherboard's BIOS version to the current version. BAD MISTAKE. The stutters came back exactly like before the MOBO swap and I am stumped. I switched out the remaining components that I had not yet switched, but no dice. I did a complete clean windows reinstall when I switched my old OS drive to my new m.2 ssd and that helped tremendously.
Now, for example, The Finals doesn't stutter at all. Snowrunner stutters but a bit less. Also tried XDefiant after it launched and that too seems to have small stutters every once in a while. Tried Fallout 76 too, and after playing it I'm quite sure that it has something to do with asset/texture loading or something like that. If I stay still and look around - no stutters. But if I walk/sprint around, I start to get hitches/stutters.
Do you have any idea what it could be if it is not hardware related? My friend suggested that maybe my PSU is faulty and could have damaged my motherboard but I'm not sure how to confirm that. And should I try different BIOS versions? After downloading the latest one I switched to an older BIOS version, but I'm not sure if it helped. Also, when I updated to the latest bios version (3607), after it finished downloading and was supposed to reboot, it never did. I saw the green LED on in the motherboard, but there was no signal to either of my monitors, so I force shutdown, and booted it after. nothing seemed out of the ordinary.
Sorry for the long post, I'm just getting frustrated since nothing is fixing it. Sorry to bother again but I really need some help haha.