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Desktop Board Features
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Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep
state. While in the S3 sleep state, the computer will appear to be off. When signaled by a wake-up
device or event, the system quickly returns to its last known awake state.
The desktop board’s standby power indicator, shown in Figure 4, is lit when there is standby power
to the system. This includes the memory modules and PCI bus connectors, even when the
computer appears to be off.
If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the
LED turning amber.
OM16879
Figure 4. Location of Standby Power Indicator
Related Links:
For more information on standby current requirements for the desktop board, refer to the Technical
Product Specification by going to the following link, finding the product, and selecting Product
Documentation from the left-hand menu:
http://support.intel.com/support/motherboards/desktop/
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