Intel D2500HN Product Guide for Intel Desktop Board D2500HN - Page 22

Battery, Real-Time Clock, LAN Wake Capabilities, Wake from USB, Wake from PS/2 Device

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Page 22 highlights

Intel Desktop Board D2500HN Product Guide LAN Wake Capabilities The board's LAN wake capabilities enable remote wake-up of the computer through a network. The LAN subsystem network adapter monitors network traffic at the Media Independent Interface. The board supports LAN wake capabilities with ACPI in the following ways: • By Ping • By Magic Packet Upon detecting the configured wake packet type, the LAN subsystem asserts a wakeup signal that powers up the computer. Wake from USB USB bus activity wakes the computer from an ACPI S1 or S3 state. NOTE Wake from USB requires the use of a USB peripheral that supports wake from USB. Wake from PS/2 Device PS/2 keyboard activity wakes the computer from an ACPI S1, S3, S4, or S5 state. However, when the computer is in an ACPI S4 or S5 state, the only PS/2 activity that will wake the computer is the Alt + Print Screen key combination or the Power key available only on some keyboards. PME# Wakeup Support When the PME# signal is asserted on the PCI bus, the computer wakes from an ACPI S1, S3, S4, or S5 state. Wake from Serial Port Serial port activity wakes the computer from an ACPI S1 or S3 state. Battery A coin-cell battery on the Desktop Board keeps the values in CMOS RAM and the clock current when the computer is turned off. Go to page 38 for instructions on how to replace the battery. Real-Time Clock The Desktop Board includes a time-of-day clock and a 100-year calendar. The coincell battery keeps the clock current when the computer is turned off. 22

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Intel Desktop Board D2500HN Product Guide
22
LAN Wake Capabilities
The board’s LAN wake capabilities enable remote wake-up of the computer through a
network.
The LAN subsystem network adapter monitors network traffic at the Media
Independent Interface.
The board supports LAN wake capabilities with ACPI in the
following ways:
•
By Ping
•
By Magic Packet
Upon detecting the configured wake packet type, the LAN subsystem asserts a wake-
up signal that powers up the computer.
Wake from USB
USB bus activity wakes the computer from an ACPI S1 or S3 state.
NOTE
Wake from USB requires the use of a USB peripheral that supports wake from USB.
Wake from PS/2 Device
PS/2 keyboard activity wakes the computer from an ACPI S1, S3, S4, or S5 state.
However, when the computer is in an ACPI S4 or S5 state, the only PS/2 activity that
will wake the computer is the Alt + Print Screen key combination or the Power key
available only on some keyboards.
PME# Wakeup Support
When the PME# signal is asserted on the PCI bus, the computer wakes from an ACPI
S1, S3, S4, or S5 state.
Wake from Serial Port
Serial port activity wakes the computer from an ACPI S1 or S3 state.
Battery
A coin-cell battery on the Desktop Board keeps the values in CMOS RAM and the clock
current when the computer is turned off.
Go to page 38 for instructions on how to
replace the battery.
Real-Time Clock
The Desktop Board includes a time-of-day clock and a 100-year calendar.
The coin-
cell battery keeps the clock current when the computer is turned off.