Intel Desktop Board DH55TC Technical Product Specification
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1.9 SATA Interfaces
The board provides six internal SATA connectors through the PCH, four for internal
storage (black connectors) and two for internal as well as external SATA/eSATA
connectivity (red connectors).
The PCH provides independent SATA ports with a theoretical maximum transfer rate of
3 Gb/s per port. A point-to-point interface is used for host to device connections.
The underlying SATA functionality is transparent to the operating system. The SATA
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 PCI
Conventional bus resource steering is used. Native mode is the preferred mode for
configurations using the Windows* XP, Windows Vista*, and Windows 7* operating
systems.
For more information, see: http://www.serialata.org/
.
For information about Refer to
The location of the SATA connectors Figure 10, page 39
1.10 Legacy I/O Controller
The Legacy I/O Controller provides the following features:
• One serial port
• One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
• Serial IRQ interface compatible with serialized IRQ support for PCI Conventional
bus systems
• PS/2-style keyboard/mouse interface
• Intelligent power management, including a programmable wake-up event interface
• PCI Conventional bus power management support
The BIOS Setup program provides configuration options for the Legacy I/O controller.
1.10.1 Serial Port
The serial port is implemented as a 10-pin header on the board. The serial port
supports data transfers at speeds up to 115.2 kbits/s with BIOS support.
For information about Refer to
The location of the serial port header Figure 10, page 39
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