Intel D845WN Product Guide - Page 17

RJ-45 LAN Connector LEDs, Speaker, Battery, Power Management Features - beep codes

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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 LAN subsystem is operating. Table 3. RJ-45 LAN Connector LEDs LED Color LED State Indicates Green Off 10 Mbit/sec data rate is selected. On 100 Mbit/sec data rate is selected. Yellow 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. 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). Battery A battery on the board keeps the values in CMOS RAM and the clock current when the computer is turned off. See Chapter 2 starting on page 21 for instructions on how to replace the battery. Power Management Features Power management is implemented at several levels, including: • Software support:  Advanced Configuration and Power Interface (ACPI)  Instantly Available PC (IAPC) • Hardware support:  Resume on Ring  Instantly Available technology  Wake from USB  Wake from PS/2 keyboard  PCI card wake up support 17

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Desktop Board Features
17
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 LAN subsystem is operating.
Table 3.
RJ-45 LAN Connector LEDs
LED Color
LED State
Indicates
Off
10 Mbit/sec data rate is selected.
Green
On
100 Mbit/sec data rate is selected.
Off
LAN link is not established.
On (steady state)
LAN link is established.
Yellow
On (brighter and pulsing)
The computer is communicating with another computer on
the LAN.
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).
Battery
A battery on the board keeps the values in CMOS RAM and the clock current when the computer
is turned off.
See Chapter 2 starting on page 21 for instructions on how to replace the battery.
Power Management Features
Power management is implemented at several levels, including:
•
Software support:
Advanced Configuration and Power Interface (ACPI)
Instantly Available PC (IAPC)
•
Hardware support:
Resume on Ring
Instantly Available technology
Wake from USB
Wake from PS/2 keyboard
PCI card wake up support