CPU FAN” socket, CPU OPT socket, and the SYS FAN sockets: Motherboard (Differences) – All The Differences
What's the difference between 'CPU FAN' socket, 'CPU OPT' socket, and a 'SYS FAN' socket on motherboard? - Quora
What's the difference between 'CPU FAN' socket, 'CPU OPT' socket, and a 'SYS FAN' socket on motherboard? - Quora
![1 x 4-pin CPU Fan header; 1 x 4-pin CPU OPT Fan header; 3 x 4-pin Chassis Fan headers; 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector; 2 1 x 4-pin CPU Fan header; 1 x 4-pin CPU OPT Fan header; 3 x 4-pin Chassis Fan headers; 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector; 2](https://www.knksystems.com/wp-content/uploads/2023/02/33615-300x300.png)