Intel DH67GD Product Specification - Page 51
Front Panel Header - diagram
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Technical Reference 2.2.2.4 Front Panel Header This section describes the functions of the front panel header. Table 27 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header. Table 27. Front Panel Header Pin Signal Name Description 1 HDD_POWER_LED Pull-up resistor (750 Ω) to +5V 3 HDD_LED# [Out] Hard disk activity LED 5 GROUND Ground 7 RESET_SWITCH# [In] Reset switch 9 +5V_DC Power Pin 2 4 6 8 10 Signal Name POWER_LED_MAIN POWER_LED_ALT POWER_SWITCH# GROUND Key Description [Out] Front panel LED (main color) [Out] Front panel LED (alt color) [In] Power switch Ground No pin Figure 11. Connection Diagram for Front Panel Header 2.2.2.4.1 Hard Drive Activity LED Header Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires a SATA hard drive or optical drive connected to an onboard SATA connector. 2.2.2.4.2 Reset Switch Header 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 board resets and runs the POST. 51