i5-9600

Hello dear friends. I have issue when I trying to overclock i5-9600k on Asus TUF Z390 Plus Gaming WiFI. I Achieved 4.7 GHz all core but above 4.7 (Example 4.8 GHz or greater) don't let me to boot a pc or if booted pc crashes in less ten 1 min. I have good air cooler and CPU temps is great at...

So basically about a year ago I bought I5-9600K and Asus Z390-H and I didn't notice that the corner of the CPU is bent and I cannot RMA it as the store will put the blame on me (I bought the CPU as Tray and got it in transparent Intel CPU sort of shell). So my problem is that for a year the PC...