CPU_FAN and CPU_OPT are entirely different and serve distinct purposes in the context of a computer cooling system. CPU_FAN or CPU Fan Header is the primary 4-pin fan header on a motherboard, and it ...

The CPU OPT header is an additional connection for special processor cooling accessories, such as specialized coolers with multiple fans or water-cooling components. Functionally, CPU OPT is identical ...

Fractal Torrent w/ stock fans [2x180 front, 3x120 bottom]. Asus Gefoce 4090 [3 fans]. i9 13900K. Noctua NH-D15 tower cooler w/ fan. Case fans are on the Fractal fan header that came with the case so ...

Stress testing your CPU is a great way to ensure that your overclock is stable, check that your cooling is powerful enough, or run in some new heat paste that you've applied to your processor. But ...