Справочник Пользователя для Intel D955XCS

Скачать
Страница из 74
Desktop Board Features 
 
 
21 
Resume on Ring 
The operation of Resume on Ring can be summarized as follows: 
•  Resumes operation from either ACPI S1 or ACPI S3 state 
•  Requires only one call to access the computer 
•  Detects incoming call similarly for external and internal modems 
•  Requires modem interrupt be unmasked for correct operation 
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.  See Chapter 2 starting on page 23 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.