5.Intel® H81 Serial ATA 3.0Gb/s connector (7-pin SATA3G_1~2)

This connector connects to Serial ATA 3.0 Gb/s hard disk drives via Serial ATA 3.0 Gb/s signal cables.

SATA3G_1

GND

RSATA_RXP1

RSATA_RXN1

GND

RSATA_TXN1

RSATA_TXP1

GND

SATA3G_2

H81M-C

GND

RSATA_RXP2

RSATA_RXN2

GND

RSATA_TXN2

RSATA_TXP2

GND

H81M-C SATA 3.0Gb/s connectors

• You must install Windows. XP Service Pack 3 or later version before using Serial ATA hard disk drives.

• When using hot-plug and NCQ, set the SATA Mode Selection item in the BIOS to [AHCI].

6. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN)

Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.

CPU_FAN

H81M-C

GND

CPU FAN PWR

CPU FAN IN

CPU FAN PWM

CHA_FAN

GND

CHA FAN PWR

CHA FAN IN

CHA FAN PWM

H81M-C Fan connectors

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! The CPU_FAN connector supports a CPU fan of maximum 1A (12 W) fan power.

Only the 4-pin CPU fan supports the ASUS Fan Xpert 2 feature.

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Chapter 1: Product introduction