Manual

2-14 Chapter 2: Hardware information
3. Repeat steps 1 to 3 to install the other heatsink if you have installed a secondRepeat steps 1 to 3 to install the other heatsink if you have installed a second
CPU, then connect the fan cable to the other 4-pin connector.
3. Connect the fan cable to the 4-pin connector labeled CPU_FAN1 or
CPU_FAN2 depending on the CPU socket you install.