Intel DQ67SW English Product Guide - Page 31
V Standby Power Indicator LED, Location of the Standby Power Indicator, Wake from USB, - motherboard
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Desktop Board Features +5 V Standby Power Indicator LED 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 LED, shown in Figure 4, 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 bus connectors. Figure 4. Location of the 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 and an operating system that supports Wake from USB. USB bus activity wakes the computer from an ACPI S3 state. PCI PME# Signal Wake-up Support When the PME# signal on the Conventional PCI bus is asserted, the computer wakes from an ACPI S3, S4, or S5 state. 31