Server Board Features
Intel
®
Server Board S1200KP Product Guide
17
Wake from USB
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake
from USB and an operating system that supports Wake from USB.
USB bus activity wakes the computer from an ACPI S3 state.
PCI Express* WAKE# Signal Wake-up Support
When the WAKE# signal on a PCI Express* bus add-in card is asserted, the computer wakes from
an ACPI S3, S4, or S5 state.
Speaker
A speaker is mounted on the Server Board. The speaker provides audible error code (beep code)
information during the Power-On Self-Test (POST). Refer to Appendix A for a description of the
board’s beep codes.
Real-Time Clock Subsystem
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer
is not plugged into a wall socket, the battery has an estimated life of three years. When the
computer is plugged in, the standby current from the power supply extends the life of the battery.
The clock is accurate to
13 minutes/year at 25 ºC with standby power applied by the
power supply.
NOTE
If the battery and AC power fail, date and time values will be reset and the
user will be notified during the POST.
When the battery voltage drops below a certain level, the BIOS Setup program settings stored in
CMOS RAM (for example, the date and time) might not be accurate. Replace the battery with an
equivalent one. Go to page 41 for instructions on how to replace the battery.
