20. SMBus Connector (6-1 pin SMB)

This connector supports SMBus (System Management Bus) devices. SMBus devices communicate by means of the SMBus with an SMBus host and/or other SMBus devices. SMBus is a multi-device bus that permits multiple chips to connect to the same bus and enable each one to act as a master by initiating data transfer.

 

SMB

 

+3V

 

SMBDATA

P4S8X

Ground

 

SMBCLK

FLOATING

1

P4S8X SMBus Connector

21. SATA Serial ATA IDE Connectors (2 x 7-pin PRI_SATA, SEC_SATA)

Two headers support serial ATA IDE HDD devices. Both RAID 0 or 1 is supported by both serial connectors. Only one HDD may be attached to each serial ATA IDE connector for RAID 0 or 1. In addition, one HDD may be connected to the PRI_ATA133 connector along with one HDD to each serial ATA connector in a RAID 0 array. (See pages 31 and 82 for more information about RAID setups.)

P4S8X

GND

RSATA_RXN2

RSATA_RXP2

GND

RSATA_TXN2

RSATA_TXP2

GND

SEC_SATA

GND

RSATA_RXN1

RSATA_RXP1

GND

RSATA_TXN1

RSATA_TXP1

GND

P4S8X SATA Connectors

PRI_SATA

ASUS P4S8X motherboard user guide

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