Gigabyte GA-EP45-UD3LR user manual 3/4/5 CPUFAN/SYSFAN1/SYSFAN2/PWRFAN Fan Headers, headers

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 3-pin (SYS_FAN1) and a 4-pin (SYS_FAN2) system fan headers, and a 3-pin power fan header (PWR_FAN). 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.

						CPU_FAN:
				1		Pin No.	Definition
						1	GND
		CPU_FAN
						2	Speed Control
						3	Sense
						4	Speed Control
						SYS_FAN2:
						Pin No.	Definition
						1	GND
	1					2	Speed Control
	SYS_FAN2					3	Sense
						4	+5V
						SYS_FAN1/PWR_FAN:
1					1	Pin No.	Definition
						1	GND
SYS_FAN1			PWR_FAN
						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.

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