Gigabyte GA-X170-Extreme ECC User Manual page 27

3/4) CPU_FAN/SYS_FAN1/2/3 (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 speed control function requires the use of a fan with fan speed control design. For
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
• 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) CPU_OPT (Water Cooling CPU Fan Header)
The fan header is 4-pin and possesses 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 speed control function
requires the use of a fan with fan speed control design.
1
CPU_FAN
1
1
SYS_FAN2
SYS_FAN1/3
1
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CPU_FAN:
Pin No. Definition
1 GND
2 +12V
3 Sense
4 Speed Control
SYS_FAN1/2/3:
Pin No. Definition
1 GND
2 Speed Control
3 Sense
4 VCC
Pin No. Definition
1 GND
2 Speed Control
3 Sense
4 VCC
Hardware Installation