Intel DX48BT2 Product Guide - Page 17
USB 2.0 Support, Enhanced IDE Interface, Serial ATA, Legacy I/O - raid
UPC - 735858199773
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Desktop Board Features USB 2.0 Support The Desktop Board supports up to 12 USB 2.0 ports (eight ports routed to back panel connectors and four ports routed to two onboard headers) via the ICH9R. USB 2.0 ports are backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at USB 1.1 speeds. USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer rates. Disabling Hi-Speed USB in the BIOS reverts all USB 2.0 ports to USB 1.1 operation. This may be required to accommodate operating systems that do not support USB 2.0. Enhanced IDE Interface The board's IDE interface handles the exchange of information between the processor and peripheral devices such as hard disk drives and CD-ROM drives. The interface supports: • Up to two IDE devices (such as hard drives) • ATAPI-style devices (such as CD-ROM drives) • Older PIO Mode devices • Ultra DMA-33 and ATA-66/100 protocols Serial ATA Desktop Board DX48BT2 supports six onboard Serial ATA channels (3.0 Gb/s) via ICH9R and two eSATA channels (3.0 Gb/s) via a discrete controller. The six onboard Serial ATA channels provided by ICH9R support the following RAID (Redundant Array of Independent Drives) levels: • RAID 0 - data striping • RAID 1 - data mirroring • RAID 0+1 (or RAID 10) - data striping and data mirroring • RAID 5 - distributed parity For information on configuring your system for RAID using Intel® Matrix Storage Technology see Chapter 4. Legacy I/O Desktop Board DX48BT2 includes an I/O controller that provides the following legacy I/O features: • Consumer Infrared (CIR) support • Low pin count (LPC) interface • Intelligent power management, including a programmable wake up event interface • PCI power management support 17