Hardware Installation- 27 -
9) SATA2_0/1/2/3/4/5 (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. The NVIDIA nForce 750a SLI
controller supports RAID 0, RAID 1, RAID 0+1 and RAID 5. Refer to Chapter 5, "Configuring SATA
Hard Drive(s)," for instructions on configuring a RAID array.
Pin No. Definition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
• Due to a chipset limitation, the SATA2_4/SATA2_5 connectors only support AHCI/RAID mode.
• A RAID 0 or RAID 1 configuration requires at least two hard drives. If more than two hard
drives are to be used, the total number of hard drives must be an even number.
• A RAID 5 configuration requires at least three hard drives. (The total number of hard
drives does not have to be an even number.)
• A RAID 0+1 configuration requires at least four hard drives and the total number of hard
drives must be an even number.
Please connect the L-shaped end of the
SATA 3Gb/s cable to your SATA hard drive.
10) PWR_LED (System Power LED Header)
This header can be used to connect a system power LED on the chassis to indicate system power
status. The LED is on when the system is operating. The LED keeps blinking when the system is
in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5).
Pin No. Definition
1 MPD+
2 MPD-
3 MPD-
System Status LED
S0 On
S1 Blinking
S3/S4/S5 Off
1
7
1
7
1
7
1
7
1
SATA2_0 SATA2_1
SATA2_2 SATA2_3
7
1
SATA2_5
7
1
SATA2_4
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