Headers for cooling fans on motherboards.
Headers for cooling fans on motherboards.
Sure, let's clarify your setup. On your Asus Z690-P D4 motherboard, you have headers for an AIO pump, CPU fan, and CPU option fan. You're connecting the AIO pump to its dedicated header, and the additional fans are likely connected to a central hub that feeds into the CPU fan. That’s correct.
Regarding the CPU OPT header: it typically controls the CPU voltage or power settings. If you're unsure what it does, check your motherboard manual or look up the specific model for guidance.
Yes, that header refers to "cha_fan," which is likely a user or category identifier in the system.