So I am about to build a PC. My idea is that I buy an i5-9400F and overclock it, but I am not really familiar whether I have to buy a high-end motherboard to do so or not. Also, what does unlocked and locked CPU mean and how do I unlock a locked one. And, what's a good alternative to the 9400f for a similar price and better performance (preferably more easily overclockable). I was planning on buying the ASROCK B365M Pro 4 phantom gaming for the CPU, but if without it, overclocking will be impossible, I am not sure whether it's a good idea to buy that cpu at all. Please, help me!!!