Gigabyte Z790 AORUS XTREME X User Manual page 21

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 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.
5) 3_FANS_1 (System Fan Extension Cable Header)
Connect the included fan extension cable to this header. The cable can be used to connect up to three
system fans. 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.
1
CPU_FAN
1
SYS_FAN1
1
SYS_FAN2~4
Fan extension cable
3_FANS_1
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Pin No. Definition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
Pin No. Definition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control