Gigabyte B450M K User Manual - Page 17

3/4) CPU_FAN/SYS_FAN1 (Fan Headers) All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The motherboard supports CPU fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. 1 CPU_FAN 1 Pin No. 1 2 3 4 Definition GND Voltage Speed Control Sense PWM Speed Control SYS_FAN1 •• Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang. •• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. 5) SATA3 0/1/2/3 (SATA 6Gb/s Connectors) The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA 1.5Gb/s standard. Each SATA connector supports a single SATA device. The SATA connectors support RAID 0, RAID 1, and RAID 10. Please navigate to the "Configuring a RAID Set" page of GIGABYTE's website for instructions on configuring a RAID array. SATA3 1 73 1 7 2 1 1 7 0 Pin No. 1 2 3 4 5 6 7 Definition GND TXP TXN GND RXN RXP GND 1 7 PORT DEBUG PORT DEBUG PORT - 17 -