Gigabyte GA-EP43T-USB3 Manual - Page 23

3/4/5) CPU_FAN/SYS_FAN1/SYS_FAN2/PWR_FAN (Fan Headers) The motherboard has a 4-pin CPU fan header (CPU_FAN), a 4-pin (SYS_FAN2) and a 3-pin (SYS_FAN1) system fan headers, and a power fan header (PWR_FAN). Most fan headers possess a foolproof inser- tion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black con- nector 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. CPU_FAN: Pin No. Definition 1 CPU_FAN 1 GND 2 +12V / Speed Control 3 Sense 4 Speed Control 1 SYS_FAN2 SYS_FAN2: Pin No. Definition 1 GND 2 +12V / Speed Control 3 Sense 4 Reserve 1 SYS_FAN1/PWR_FAN SYS_FAN1/PWR_FAN Pin No. Definition 1 GND 2 +12V 3 Sense • 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. 6) FDD (Floppy Disk Drive Connector) This connector is used to connect a floppy disk drive. The types of floppy disk drives supported are: 360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a floppy disk drive, be sure to locate pin 1 of the connector and the floppy disk drive cable. The pin 1 of the cable is typically designated by a stripe of different color. For purchasing the optional floppy disk drive cable, please contact the local dealer. 34 33 2 - 23 - 1 Hardware Installation