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.
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