Intel DG41AN Product Specification - Page 21
Serial ATA Interfaces
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Product Description 1.6.2 USB The board supports up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. The ICH7 provides the USB controller for all ports. The port arrangement is as follows: • Four ports are implemented with stacked back panel connectors • Four ports are routed to two separate front panel USB headers For information about The location of the USB connectors on the back panel The location of the front panel USB headers Refer to Figure 9, page 41 Figure 10, page 42 1.6.3 Serial ATA Interfaces The board provides three Serial ATA (SATA) connectors, which support one device per connector. 1.6.3.1 Serial ATA Support The board's Serial ATA controller offers three independent Serial ATA ports with a theoretical maximum transfer rate of 3 Gb/s per port. One device can be installed on each port for a maximum of three Serial ATA devices. A point-to-point interface is used for host to device connections, unlike Parallel ATA IDE which supports a master/slave configuration and two devices per channel. For compatibility, the underlying Serial ATA functionality is transparent to the operating system. The Serial ATA controller can operate in both legacy and native modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14 and 15). In Native mode, standard Conventional PCI bus resource steering is used. Native mode is the preferred mode for configurations using the Windows* XP operating system. NOTE Many Serial ATA drives use new low-voltage power connectors and require adapters or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ For information about The location of the Serial ATA connectors Refer to Figure 10, page 42 21