Gigabyte GA-H81M-D2W - Page 14

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5) SATA3 0/1 (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.
Pin No. Denition Pin No. Denition
1 GND 5 RXN
2 TXP 6 RXP
3 TXN 7 GND
4 GND
SATA3
SATA2
1 0
3 2
77
DEBUG PORT
G.QBOFM
DEBUG PORT
G.QBOFM
11
77
DEBUG PORT
G.QBOFM
DEBUG PORT
G.QBOFM
11
6) SATA2 2/3 (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.
Pin No. Denition Pin No. Denition
1 GND 5 RXN
2 TXP 6 RXP
3 TXN 7 GND
4 GND
3/4) CPU_FAN/SYS_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 4-pin system fan header (SYS_FAN).
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_FAN
DEBUG PORT
G.QBOFM
DEBUG PORT
G.QBOFM
1 1
CPU_FAN:
Pin No. Denition
1 GND
2 +12V
3 Sense
4 Speed Control
• 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 conguration jumper blocks. Do not place a jumper cap on the headers.
SYS_FAN:
Pin No. Denition
1 GND
2 +12V/Speed Control
3 Sense
4 VCC