Intel® Desktop Board DG41RQ Technical Product Specification

Product Description1.6.3 Serial ATA InterfacesThe board’s Serial ATA controller offers four independent Serial ATA ports with atheoretical maximum transfer rate of 3 Gbits/sec per port. One device can be installedon each port for a maximum of four Serial ATA devices. A point-to-point interface isused for host to device connections, unlike Parallel ATA IDE which supports amaster/slave configuration and two devices per channel.For compatibility, the underlying Serial ATA functionality is transparent to theoperating system. The Serial ATA controller can operate in both legacy and nativemodes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14and 15). In Native mode, standard PCI Conventional bus resource steering is used.Native mode is the preferred mode for configurations using the Windows* XPoperating system. NOTEMany Serial ATA drives use new low-voltage power connectors and require adapters orpower supplies equipped with low-voltage power connectors.For more information, see: http://www.serialata.org/For information aboutRefer toThe location of the Serial ATA connectors Figure 10, page 4421