ovcrclocking

Hi everyone. I overclocked my cpu to 5000mhz and with occt stress test about 30 minute everything is ok max temp is 65-70c. After 1 week im trying do strees test after 2 minute cpu is overheating goes up 91c. Can someone help me do overclock? Thank you. Pc Spec Cpu - i9-9900k Gpu - Asus...

I am wondering what monitor should i get for a better performance gaming in a mid budget of around 250-330 euros. I was looking for a XL2430 which is higher than my budget expectations but.. it looks neat. Any other options are also appreciated. Btw, i do not want to show off, but i am...