Gigabyte GA-B250-FinTech User Manual page 14

4/5) 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.
1
1
CPU_FAN SYS_FAN1
• 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) SATA3 0/1/2/3/4/5 (SATA 6Gb/s Connectors)
The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA
1.5Gb/s standard. Each SATA connector supports a single SATA device.
1 1
SATA3
7 7
7 1
7 1
To enable hot-plugging for the SATA ports, refer to Chapter 2, "BIOS Setup," "Peripherals\SATA
And RST Configuration," for more information.
1
DEBUG SYS_FAN2/SYS_FAN3 DEBUG
PORT PORT
DEBUG DEBUG
PORT PORT
Pin No. Definition
1 GND
2 TXP
1 0
3 2
3 TXN
4 GND
5 RXN
6 RXP
7 GND
5
4
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Pin No. Definition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control