Desktop Board Features
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NOTE
The line out connector located on the back panel is designed to power headphones or amplified
speakers only. Poor audio quality may occur if passive (non-amplified) speakers are connected to
this output.
Audio Drivers and Utilities
Audio drivers and utilities are available from Intel’s World Wide Web site at:
http://support.intel.com/support/motherboards/desktop
Speaker
A 47 Ω inductive speaker is mounted on the desktop board. The speaker provides audible error
code (beep code) information during the Power-On Self-Test (POST).
LAN Subsystem (Optional)
The Intel 82559 Fast Ethernet Wired for Management (WfM) PCI LAN subsystem provides both
10Base-T and 100Base-TX connectivity. Features include:
• 32-bit, 33-MHz direct bus mastering on the PCI bus
• Shared memory structure in the host memory that copies data directly to/from host memory
• 10Base-T and 100Base-TX capability using a single RJ-45 connector with connection and
activity status LEDs
• IEEE 802.3u Auto-Negotiation for the fastest available connection
• Jumperless configuration; the LAN subsystem is completely software configurable
Intel
82559 LAN Controller
The 82559 PCI LAN controller features include:
• CSMA/CD Protocol Engine
• PCI bus interface
• DMA engine for movement of commands, status, and network data across the PCI bus
• Integrated physical layer interface, including:
Jumperless configuration; the LAN subsystem is completely software configurable
Complete functionality necessary for the 10Base-T and 100Base-TX network interfaces;
when in 10 Mbit/sec mode, the interface drives the cable directly
A complete set of Media Independent Interface (MII) management registers for control
and status reporting
802.3u Auto-Negotiation for automatically establishing the best operating mode when
connected to other 10Base-T or 100Base-TX devices, whether half- or full-duplex capable
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