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Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Status LEDs
LED
LED Color
Activity (A)
Green
N/A
Speed (B)
Yellow
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 front panel USB 2.0 headers). The USB 2.0 ports
are 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 High-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.
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.
SATA Interface
The Desktop Board supports two SATA channels (3.0 Gb/s) that support one device
per channel. The SATA controller supports IDE and ACHI configuration and can
operate in both legacy and native modes.
Expandability
For system expansion, the Desktop Board provides one PCI connector that can support
either a single PCI add-in card or a single- or dual-slot PCI riser card.
LED State
Indicates
Blinking
LAN activity is occurring.
Off
10 Mbits/s data rate is selected.
On
100 Mbits/s data rate is selected.
Desktop Board Features
17
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