NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 50
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NH82801HEM S LB9B
Manufacturer Part Number
NH82801HEM S LB9B
Description
Manufacturer
Intel
Datasheet
1.NH82801HEM_S_LB9B.pdf
(890 pages)
Specifications of NH82801HEM S LB9B
Lead Free Status / RoHS Status
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The integrated GbE controllers data lines for 1000 Mb/s speed are multiplexed with PCI
Express* Root Port 6 and, therefore, unavailable if a Gigabit Ethernet PHY is connected.
The use of a 10/100 Mb/s PHY does not consume PCI Express Root Port 6 and,
therefore, the port is available to be used as a x1 port.
Serial ATA (SATA) Controller
The ICH8 has integrated SATA host controllers that supports independent DMA
operation on up to six ports (desktop only) or three ports (mobile only) and supports
data transfer rates of up to 3.0 Gb/s (300 MB/s). The SATA controller contains two
modes of operation – a legacy mode using I/O space, and an AHCI mode using memory
space. SATA and PATA (Mobile only) can also be used in a combined function mode
(where the SATA function is used with PATA). In this combined function mode, AHCI
mode is not used. Software that uses legacy mode will not have AHCI capabilities.
The ICH8 supports the Serial ATA Specification, Revision 2.5. The ICH8 also supports
several optional sections of the Serial ATA II: Extensions to Serial ATA 1.0
Specification, Revision 1.0 (AHCI support is required for some elements).
SATA Ports 2 and 3 are not on the ICH8 Base product. See
product feature availability.
AHCI
The ICH8 provides hardware support for Advanced Host Controller Interface (AHCI), a
new programming interface for SATA host controllers. Platforms supporting AHCI may
take advantage of performance features such as no master/slave designation for SATA
devices—each device is treated as a master—and hardware-assisted native command
queuing. AHCI also provides usability enhancements such as Hot-Plug. AHCI requires
appropriate software support (e.g., an AHCI driver) and for some features, hardware
support in the SATA device or additional platform hardware.
Intel Matrix Storage Technology (Intel
ICH8M-E
The ICH8 provides support for Intel Matrix Storage Technology, providing both AHCI
(see above for details on AHCI) and integrated RAID functionality. The industry-leading
RAID capability provides high-performance RAID 0, 1, 5, and 10 functionality on up to
6 SATA ports of ICH8. Matrix RAID support is provided to allow multiple RAID levels to
be combined on a single set of hard drives, such as RAID 0 and RAID 1 on two disks.
Other RAID features include hot spare support, SMART alerting, and RAID 0 auto
replace. Software components include an Option ROM for pre-boot configuration and
boot functionality, a Microsoft Windows compatible driver, and a user interface for
configuration and management of the RAID capability of ICH8. Note that ICH8M-E
supports only RAID 0 and RAID 1.
PCI Interface
The ICH8 PCI interface provides a 33 MHz, Revision 2.3 implementation. The ICH8
integrates a PCI arbiter that supports up to four external PCI bus masters in addition to
the internal ICH8 requests. This allows for combinations of up to four PCI down devices
and PCI slots.
Only)
®
ICH8R, ICH8DH, ICH8DO
Section 1.2
Intel
®
ICH8 Family Datasheet
for details on
Introduction
, and
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