- 22 -Hardware Installation
Be sure to connect fan cables to the fan headers to prevent your CPU and system from over- •
heating. 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.
3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 (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.
CPU_FAN/SYS_FAN2/SYS_FAN3:
Pin No. Definition
1 GND
2 +12V
3 Sense
4 Speed Control
SYS_FAN1:
Pin No. Definition
1 GND
2 +12V /Speed Control
3 Sense
4 VCC
CPU_FAN/SYS_FAN2/SYS_FAN3
1
SYS_FAN1
5) SATA3 0 (SATA 6Gb/s Connector, Controlled by Intel B75 Chipset)
The SATA connector conforms 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.
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Pin No. Definition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
SATA3 0