Справочник Пользователя для Intel S3420GP

When operating with two PCI Express* controllers, each controller can operate at either 2.5 
GT/s or 5.0 GT/s. The PCI Express* architecture is specified in three layers: Transaction Layer, 
Data Link Layer, and Physical Layer. The partitioning in the component is not necessarily along 
these same boundarie  

el

®

 342

 SATA host controllers that support independent 

 modes of operation – a legacy mode using I/O space and an 

AHCI mode using memory space.  

re that u

CI capabilities. The Intel

®

 3420 Chipset 

 3420 Chipset provides support for Intel  Matrix Storage Technology, providing both 

AHCI) and integrated RAID functionality. The industry leading 

erformance RAID 0, 1, 5, and 10 functionality on up to six SATA 

ed on 

 

re high-speed, full-speed, 

and low-speed capable. 

vided, each supporting two optional 

USB 2.0 ports.  

ƒ

 

One port on internal vertical connector to support NIC. 

ƒ

 

One port on 1x4pin (J1J2) on-board header to support floppy. 

3.4.3.1 
During the power-on self test (POST), the BIOS initializes and configures the USB subsystem. 
The BIO

ble

low

o

ice

ƒ

 

ƒ

 

ƒ

 

USB Specification-compliant storage devices that utilize bulk-only transport mechanism 

 
USB devices are scanned to determine if they are required for booting. 

s.

The Int

0 Chipset has two integrated

DMA operation on up to six ports and supports data transfer rates of up to 3.0 GB/s (300 MB/s). 
The SATA controller contains two

Softwa

ses legacy mode does not have AH

supports the Serial ATA Specification, Revision 1.0a. The Ibex Peak 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).  

The Intel

®

®

AHCI (see above for details on 
RAID capability provides high-p
ports of PCH. Matrix RAID support is provided to allow multiple RAID levels to be combin
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 autos replace. Software components 
include an Option ROM for pre-boot configuration and boot functionality, a Microsoft Windows*
compatible driver, and a user interface to configure and manage the RAID capability of the 
Intel

®

 3420 Chipset.  

On the Intel

®

 3420 Chipset, the USB controller functionality is provided by the dual EHCI 

controllers with an interface for up to ten USB 2.0 ports. All ports a

ƒ

 

Four external connectors are located on the back edge of the server board.  

ƒ

 

Two internal 2x5 header (J1E2 and J1D1) are pro

S is capa

 of initializing and using the fol

ing types  f USB dev

s. 

USB Specification-compliant keyboards 
USB Specification-compliant mouse