Intel D955XBK English Product Guide - Page 16

Hi-Speed USB 2.0 Support - desktop board drivers

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Intel Desktop Board D955XBK Product Guide RJ-45 LAN Connector LEDs Two LEDs are built into the RJ-45 LAN port located on the back panel (see Figure 2). OM17386 Figure 2. LAN Port LED Locations Table 4 describes the LED states when the board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating. Table 4. LED Left Right RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs LED Color Green N/A Green Yellow LED State Off On Blinking Off On On Indicates LAN link is not established LAN link is established LAN activity is occurring 10 Mb/s data rate 100 Mb/s data rate 1000 Mb/s data rate Hi-Speed USB 2.0 Support NOTE 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. Use a shielded cable that meets the requirements for a full-speed USB device. The desktop board supports up to eight USB 2.0 ports via ICH7R; four ports routed to the back panel and four routed to two internal USB 2.0 headers. 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. 16

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Intel Desktop Board D955XBK Product Guide
16
RJ-45 LAN Connector LEDs
Two LEDs are built into the RJ-45 LAN port located on the back panel (see Figure 2).
OM17386
Figure 2.
LAN Port LED Locations
Table 4 describes the LED states when the board is powered up and the 10/100/1000 Gigabit
Ethernet LAN subsystem is operating.
Table 4.
RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs
LED
LED Color
LED State
Indicates
Left
Off
LAN link is not established
Green
On
LAN link is established
Blinking
LAN activity is occurring
N/A
Off
10 Mb/s data rate
Green
On
100 Mb/s data rate
Right
Yellow
On
1000 Mb/s data rate
Hi-Speed USB 2.0 Support
NOTE
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.
Use a shielded cable that meets the requirements for a full-speed USB device.
The desktop board supports up to eight USB 2.0 ports via ICH7R; four ports routed to the back
panel and four routed to two internal USB 2.0 headers.
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.