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Storage
Serial ATA Controller
The mainboard provides embedded dual Serial ATA channels using the Silicon Image 3112A PCI-to-
Serial ATA Controller. The 3112A SATA controller is a PCI-to-SATA controller of individual drives or a
RAID configuration. The controller supports the following:
•
Two SATA hard disk drives
•
150 MB/s data transfer
•
RAID 0 (striping): adjustable stripe size. RAID 0 is used for high-performance applications
•
RAID 1 (mirroring): RAID 1 is used for data protection
•
Online mirror rebuilding
•
Multiple sizes of hard disk drives
•
Automatic selection of the highest available transfer speed for all ATA and ATAPI drives
•
Booting from an individual drive or RAID set of drives
The SATA drives can be enabled or disabled as a RAID set by running a utility to turn RAID mode on
or off and loading the appropriate operating system driver. To use the RAID option, two SATA hard
disk drives are required. When RAID is disabled, the drives are treated as individual ATA drives.
NOTE
Some operating systems will not support RAID mode.
IDE Controller
The ICH4 acts as a PCI-based Ultra DMA 100 IDE controller that supports programmed I/O transfers
and bus master IDE transfers. The ICH4 supports two IDE channels, supporting two drives each for
a maximum of four devices.
Network Interface Controllers (NICs)
The mainboard includes two integrated on-board Ethernet connections:
•
One 10/100/1000Base-TX network controller based on the Intel
Controller.
•
One 10Base-T/100Base-TX network controller based on the Intel
Multifunction PCI/CardBus Controller. As a PCI bus master, the 82550PM can burst data
at up to 132 MB/s.
Status LEDs are included on the external NIC connectors.
You can disable the embedded NICs in BIOS Setup Utility. When disabled they are not visible to the
operating system.
NIC Connector and Status LEDs
The mainboard supports two RJ-45 connectors, 10/100 Mbps Fast Ethernet controller (NIC1) and one
for the one for the gigabit ethernet controller (NIC2). As you look at the rear I/O panel of the board,
the NICs are in the following locations:
•
NIC1 (10/100 megabit): The left connector, looking at the system from the back.
•
NIC2 (1 gigabit): The right connector, looking at the system from the back.
The NICs each drive two LEDs on their RJ-45 connectors: one to indicate a link on the Local Area
Network (LAN) and the other to indicate the speed of operation. Table 3 describes the functionality
of the LEDs.
18
82540EM Gigabit Ethernet
®
82550PM Fast Ethernet
®
Features
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