i have afew questions after following some steps on youtube to undervolt my cpu it apears it doesnt like any negative value, did i come across i bad cpu,

i started at

-15 ran aida64 extreme and it stopped it at 7 minutes with hardware failure

went down to -10 and crashed in seconds

went back down to -5 and ran for 8 mins and warning hardware failure again

does this mean im not going to able to undervolt my cpu ?

i mostly use it for gaming i just wanted it to run fresher

How To Undervolt a Ryzen 7 9800X3D The Right Way! (or Any AMD AM5 Ryzen CPU)

this is the video i followed step by step