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Desktop Board Features
21
Wake from USB
NOTE
Wake from USB requires the use of a USB peripheral that supports wake from USB.
USB bus activity wakes the computer from an ACPI S1 or S3 state.
Wake from PS/2 Keyboard/Mouse
PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.
PME# Wakeup Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3,
or S5 state.
Speaker
A 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 desktop board keeps the values in CMOS RAM and the clock current when the
computer is turned off. Go to page
49 for instructions on how to replace the battery.
Real-Time Clock
The desktop board has a time-of-day clock and 100-year calendar. The battery on the desktop
board keeps the clock current when the computer is turned off.