Intel DH61AG - Standby Power Indicator LED; Standby Power Indicator LED Function

Intel Desktop Board DH61AG Technical Product Specification
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1.13.2.9 Standby Power Indicator LED
The standby power indicator LED shows that power is still present even when the
computer appears to be off. Figure 10 shows the location of the standby power LED.
CAUTION
If 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.
Figure 10. Location of the Standby Power LED