Question System wont post when turned on

Jan 11, 2021
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I was doing the wrong thing as I had changed the bios on my motherboard that was the first mistake as I had just built the computer and from then I tried to reset Cmos but it still wont work from there. Then now when I try to turn it on it just tries to turn on like little bursts and then it turns on from there but then I cant turn it off from there. I was able to access the bios before and all.
CPU - Ryzen 7 3700x
MOB - Rog Strix B550 F (wifi)
GPU - 3070
PSU - 850 Watt GA EVGA
I was just trying to wonder if anyone would have any idea to fix the problem.