Intel D875PBZ Product Guide - Page 19

RJ-45 LAN Connector LEDs, Hi-Speed USB 2.0 Support - ethernet driver

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Desktop Board Features RJ-45 LAN Connector LEDs Two LEDs are built into the RJ-45 LAN connector. Table 3 describes the LED states when the board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating. Table 3. RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs LED Color LED State Indicates Bi-color LED Off 10 Mbit/sec data rate is selected. Green Yellow 100 Mbit/sec data rate is selected. 1 Gbit/sec data rate is selected. Green Off LAN link is not established. On (steady state) LAN link is established. On (brighter and pulsing) The computer is communicating with another computer on the LAN. Hi-Speed USB 2.0 Support NOTE Use a shielded cable that meets the requirements for a full-speed USB device. Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. NOTE USB devices are limited to USB 1.1 transfer rates prior to operating system and driver initialization. The desktop board supports up to eight USB 2.0 ports via ICH5R; six ports routed to the back panel and two routed to the internal USB 2.0 header. 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. 19

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Desktop Board Features
19
RJ-45 LAN Connector LEDs
Two LEDs are built into the RJ-45 LAN connector.
Table 3 describes the LED states when the
board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating.
Table 3.
RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs
LED Color
LED State
Indicates
Off
10 Mbit/sec data rate is selected.
Bi-color LED
Green
100 Mbit/sec data rate is selected.
Yellow
1 Gbit/sec data rate is selected.
Off
LAN link is not established.
On (steady state)
LAN link is established.
Green
On (brighter and
pulsing)
The computer is communicating with another computer on the
LAN.
Hi-Speed USB 2.0 Support
NOTE
Use a shielded cable that meets the requirements for a full-speed USB device.
Computer systems
that have an unshielded cable attached to a USB port might not meet FCC Class B requirements,
even if no device or a low-speed USB device is attached to the cable.
NOTE
USB devices are limited to USB 1.1 transfer rates prior to operating system and driver
initialization.
The desktop board supports up to eight USB 2.0 ports via ICH5R; six ports routed to the back
panel and two routed to the internal USB 2.0 header.
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.