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Intel Desktop Boards D845GRG and D845GBV Product Guide
20
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 Intel desktop 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.
Real-Time Clock
Desktop Boards D845GRG and D845GBV have a time-of-day clock and 100-year calendar. A
battery on the desktop board keeps the clock current when the computer is turned off.