Hi-Speed Usb 2.0 Support; Ata Support; Pata Interface - Intel DG41KR Product Manual

Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Connector LEDs
LED LED Color
A (Link) Green
B (Speed) N/A
Green
Yellow
For information about LAN software and drivers go to
http://support.intel.com/support/motherboards/desktop

Hi-Speed USB 2.0 Support

The Desktop Board supports up to eight USB 2.0 ports (four ports routed to the back
panel and four ports routed to two internal headers) via ICH7. USB 2.0 ports are
backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at
USB 1.1 speeds.
USB 2.0 support requires both an operating system and drivers that fully support
USB 2.0 transfer rates. Disabling Hi-Speed USB in the BIOS reverts all USB 2.0 ports
to USB 1.1 operation. This may be required to accommodate operating systems that
do not support USB 2.0.

ATA Support

The board includes five ATA interface connectors:
• One PATA connector that supports two devices
• Four SATA connectors that support one device each

PATA Interface

The board provides one bus-mastering PATA interface that is accessible through a
standard IDE connector. The PATA interface supports the following modes:
• Programmed I/O (PIO): the processor controls data transfer.
• 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to
16 MB/s.
• Ultra DMA: DMA protocol on the ATA bus supporting host and target throttling and
transfer rates of up to 33 MB/s.
• ATA-66: DMA protocol on the ATA bus supporting host and target throttling and
transfer rates of up to 66 MB/s. ATA-66 protocol is similar to Ultra DMA and is
device driver compatible.
• ATA-100: DMA protocol on the ATA bus allows host and target throttling.
LED State Indicates
Off LAN link is not established
On LAN link is established
Blinking LAN activity is occurring
Off 10 Mb/s data rate
On 100 Mb/s data rate
On 1000 Mb/s data rate
Desktop Board Features
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