Intel GA-N650SLI-DS4L user manual CPUFAN/SYSFAN/PWRFAN Fan Headers, Nbfan North Bridge Fan Header

3/4/5) CPU_FAN/SYS_FAN/PWR_FAN (Fan Headers)

The motherboard has a 4-pin CPU fan header (CPU_FAN), a 4-pin system fan header (SYS_FAN), and a 3-pin power fan header (PWR_FAN). Each fan header supplies a +12V power voltage and possesses a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation. Most fans are designed with color-coded power connector wires. A red power connector wire indicates a positive connection and requires a +12V voltage. 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

SYS_FAN

1

PWR_FAN

CPU_FAN/SYS_FAN:

	Pin No.	Definition
	1	GND
	2	+12V / Speed Control
	3	Sense
1	4	Speed Control
	PWR_FAN:
	Pin No.	Definition
	1	GND
	2	+12V
	3	Sense

6)NB_FAN (North Bridge Fan Header)

Connect the North Bridge fan cable to this header. The fan header has a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation. Most fans are designed with color-coded power connector wires. A red power connector wire indicates a positive connec- tion and requires a +12V voltage. The black connector wire is the ground wire.

1

Pin No.	Definition
1	GND
2	+12V
3	NC

•Be sure to connect fan cables to the fan headers to prevent your CPU, North Bridge and

system from overheating. Overheating may result in damage to the CPU/North Bridge or the system may hang.

•These fan headers are not configuration jumper blocks. Do not place a jumper cap on the

headers.
GA-N650SLI-DS4L Motherboard	- 26 -