Intel KD875PBZLKPAK10 Product Specification - Page 70
Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector
UPC - 735858160209
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Intel Desktop Board D875PBZ Technical Product Specification 2.8.3.1.2 Reset Switch Connector Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the Desktop Board D875PBZ resets and runs the POST. 2.8.3.1.3 Power/Sleep/Message Waiting LED Connector Pins 2 and 4 can be connected to a one- or two-color LED. Table 34 shows the possible states for a one-color LED. Table 35 shows the possible states for a two-color LED. Table 34. States for a One-Color Power LED LED State Description Off Power off/sleeping Steady Green Running Blinking Green Running/message waiting Table 35. States for a Two-Color Power LED LED State Off Steady Green Blinking Green Steady Yellow Blinking Yellow Description Power off Running Running/message waiting Sleeping Sleeping/message waiting ✏ NOTE To use the message waiting function, ACPI must be enabled in the operating system and a message-capturing application must be invoked. 2.8.3.1.4 Power Switch Connector Pins 6 and 8 can be connected to a front panel momentary-contact power switch. The switch must pull the SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to internal debounce circuitry on the Desktop Board D875PBZ.) At least two seconds must pass before the power supply will recognize another on/off signal. 2.8.3.2 Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 36. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pin Signal Name In/Out Description 1 HDR_BLNK_GRN Out Front panel green LED 2 Not connected 3 HDR_BLNK_YEL Out Front panel yellow LED 70