Gigabyte GA-B75-DS3V User Manual page 14

3/4) CPU_FAN/SYS_FAN1/2/3 (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN), two 4-pin (SYS_FAN1, 2) and one 3-pin (SYS_
FAN3) system fan headers.. 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.
CPU_FAN/SYS_FAN2:
Pin No. Definition
1
2
1
3
CPU_FAN/SYS_FAN2
4
SYS_FAN3:
Pin No. Definition
1
1
2
SYS_FAN3
3
• Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Over-
heating 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) SATA3 0 (SATA 6Gb/s Connector)
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.
SATA3 0
7
1
6) SATA2 1/2/3/4/5 (SATA 3Gb/s Connectors)
The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard.
Each SATA connector supports a single SATA device.
1
SATA2
3 2
5 4
1 7
1
1
GND
1
+12V
SYS_FAN1
Sense
Speed Control
DEBUG
PORT
GND
+12V
NC
Pin No. Definition
1 GND
2 TXP
DEBUG
PORT
3 TXN
DEBUG 4 DEBUG GND
PORT PORT
5 RXN
DEBUG DEBUG
6 RXP
PORT PORT
7 GND
Pin No. Definition
1 GND
2 TXP
3 TXN
4 GND
7
5 RXN
6 RXP
7
7 GND
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SYS_FAN1:
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
4 VCC