Question New cpu and motherboard causing pc to lock up?

May 21, 2020
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So recently upgraded my mother board and cpu to a b450m a and ryzen 5 3600. I keep getting freezes then black screens then comes back whenever i scroll alot or open new apps or tabs and it literally did just as im typinghelppppppppppp
 
I’ve been getting freezes and shortly after I see that gpu went to 100 usage and oven reinstalled Windows’s after upgrading cpu and motherboard tried putting it all back together that hasn’t worked I’m lost and this only Brennan happening since I changed out my acer n50 600 motherboard with i3 8100 for a b450m a and 3600 but can’t see a overheating problem so idk what else to do
 
so ive upgraded to a ryzen 5 3600 and been having freezing black screens and restarts could my corsair 2400 cmk8gx4m1a2400c16 be causing this as ive done everything and cant figure it out.