Intel D2500HN Product Guide for Intel Desktop Board D2500HN - Page 20
Power Management Features, ACPI, Hardware Support
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Intel Desktop Board D2500HN Product Guide Power Management Features Power management is implemented at several levels, including: • Software support through the Advanced Configuration and Power Interface (ACPI) • Hardware support: ― Power connector ― Fan header ― +5 V standby power indicator LED ― LAN Wake capabilities ― Instantly Available PC technology ― Wake from USB ― Wake from PS/2 ― PME# wakeup support ― Wake from serial port ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the Desktop Board requires an operating system that provides full ACPI support. Hardware Support Fan Header The Desktop Board has a 3-pin system fan header. See Figure 10 on page 34 for the location of the system fan header. +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 4, is lit when there is standby power to the system. This includes the SO-DIMM sockets and the PCI bus connector, even though the computer appears to be off. 20
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