Intel D865GSA Product Specification - Page 31

Serial ATA Interfaces

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Product Description The Parallel ATA IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA devices. The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate and translation mode to the BIOS. For information about The location of the Parallel ATA IDE connectors Refer to Figure 11, page 54 1.5.4.2 Serial ATA Interfaces The ICH5's Serial ATA controller offers two independent Serial ATA ports with a theoretical maximum transfer rate of 150 MB/s per port. One device can be installed on each port for a maximum of two 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 PCI resource steering is used. Native mode is the preferred mode for configurations using the Windows* XP and Windows 2000 operating systems. NOTE Many Serial ATA drives use new low-voltage power connectors and require adaptors or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ 31

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Product Description
31
The Parallel ATA IDE interfaces also support ATAPI devices (such as CD-ROM drives)
and ATA devices.
The BIOS supports Logical Block Addressing (LBA) and Extended
Cylinder Head Sector (ECHS) translation modes.
The drive reports the transfer rate
and translation mode to the BIOS.
For information about
Refer to
The location of the Parallel ATA IDE connectors
Figure 11, page 54
1.5.4.2
Serial ATA Interfaces
The ICH5’s Serial ATA controller offers two independent Serial ATA ports with a
theoretical maximum transfer rate of 150 MB/s per port.
One device can be installed
on each port for a maximum of two 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 PCI resource steering is used.
Native mode is the preferred
mode for configurations using the Windows* XP and Windows 2000 operating systems.
±
NOTE
Many Serial ATA drives use new low-voltage power connectors and require adaptors or
power supplies equipped with low-voltage power connectors.
For more information, see: