Overclocking problems with cpu

[valla]

Hey everyone. Yesterday I tried to overclock my cou (AMD Ryzen 3 1200) and now when I try to start my pc all fans are spinning and all the leds are working but my monitor doesn't get signal. It isn't in the cable or the monitor. I tought that my power supply might be too small (450 watts). Or I fried my motherboard and cpu. Is there anyway to tell which one it is? I'm grateful of all the help I can get

 

[vapour]

It is normal. Your oc setting is not stable. Just remove your cmos battery for a while and then put back, everything resets.
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiW_5DHwObWAhUGQCYKHYKLD_cQjRwIBw&url=https%3A%2F%2Fsupport.hp.com%2Fin-en%2Fdocument%2Fc03747886&psig=AOvVaw1a0AH3pgfHy6iAXA8dRBBb&ust=1507740313734888