Asus H81M-CT User Guide - Page 24

6. Intel® H81 Serial ATA 3.0Gb/s connectors (7-pin SATA3G_1~2) These connectors connect to Serial ATA 3.0 Gb/s hard disk drives via Serial ATA 3.0 Gb/s signal cables. H81M-CT SATA3G_1 SATA3G_2 GND RSATA_RXP1 RSATA_RXN1 GND RSATA_TXN1 RSATA_TXP1 GND GND RSATA_RXP2 RSATA_RXN2 GND RSATA_TXN2 RSATA_TXP2 GND H81M-CT 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] 7. 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 CPU FAN PWM CPU FAN IN CPU FAN PWR GND H81M-CT CHA_FAN +5V CHA FAN IN CHA FAN PWR GND H81M-CT 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. 1-16 Chapter 1: Product introduction