+5 V Standby Power Indicator; Wake From Usb; Wake From Serial; Location Of The +5 V Standby Power Indicator - Intel DP43BF Product Manual

The Desktop Board supports the PCI Bus Power Management Interface Specification.
Add-in cards that support this specification can participate in power management and
can be used to wake the computer.

+5 V Standby Power Indicator

CAUTION
If the AC power has been switched off and the standby power indicator is still lit,
disconnect the power cord before installing or removing any devices connected to the
board. Failure to do so could damage the board and any attached devices.
The Desktop Board's standby power indicator, shown in Figure 3, is lit when there is
standby power still present on the board even when the computer appears to be off.
For example, when this green LED is lit, standby power is still present at the memory
module sockets and the PCI/PCI Express bus connectors.
Figure 3. Location of the +5 V Standby Power Indicator
For more information on standby current requirements for the Desktop Board, refer to
the Technical Product Specification at
http://www.intel.com/support/motherboards/desktop.

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 Serial

Serial bus activity wakes the computer from an ACPI S1 or S3 state.
Desktop Board Features
25