Once upon a time, there were two ways to overclock a CPU. Raising the multiplier has been the simplest and easiest option since it came to be, but old hardware nerds like this author will recall the days of raising motherboard front-side bus (FSB) clocks to accelerate memory accesses, as well as goosing the CPU clock rate. That technique more-or-less

Source: Hot Hardware – Locked Intel Core i5-12400 Gets Overclocked To 5.2GHz For A Huge Gain In Performance