INSTALLATION .III

Connectors

III.INSTALLATION

22.SB-Link™ Connector (6-1 pin DMA_HEADER) (optional/reserved)

Using Intel’s PC-PCI and serialized IRQ protocols found in this motherboard’s AGPset, this connector allows Sound Blaster 16 compatibility to AWE64D (Digi- tal) or other PCI audio cards, enabling users to play Real-mode DOS games and multimedia applications. SB-Link acts as a bridge between the motherboard and the PCI audio card by providing the DMA and IRQ signals present in the ISA bus but not available on the PCI bus.

1 2

PC/PCI Grant Sideband Signal DGND PC/PCI Request Sideband Signal

DGND Serial IRQ

5 6

DMA_HEADER

NOTE: Pin 3 is removed to ensure the correct orientation of the cable on it.

P2B-D/DS SB-Link™ Connector

23.SMBus Connector (3-pin SMB) (optional/reserved)

This connector allows you to connect SMBus devices. SMBus devices commu- nicate by means of the SMBus with an SMBus host and/or other SMBus de- vices. The SMBus or System Management Bus is a specific implementation of an I2C bus, which is a multi-master bus, that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer.

SMB

P2B-D/DS SMBus Connector

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ASUS P2B-D/P2B-DS User’s Manual