Intel D845HV, D845WN manual Speaker, Battery, Power Management Features, RJ-45 LAN Connector LEDs

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
Green	Off
	On
Yellow	Off
	On (steady state)
	On (brighter and pulsing)

Indicates

10 Mbit/sec data rate is selected.

100 Mbit/sec data rate is selected.

LAN link is not established.

LAN link is established.

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

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