Intel® Desktop Board DG41RQ Technical Product Specification

Technical Reference2.2.2.5 Front Panel HeaderThis section describes the functions of the front panel header. Table 22 lists the signalnames of the front panel header. Figure 11 is a connection diagram for the front panelheader.Table 22. Front Panel HeaderPinSignalIn/Out Description Pin SignalHard Drive Activity LED1 HD_PWR Out Hard disk LED pull-upto +5 V2 HDR_BLNK_GRN3 HDA# Out Hard disk active LED 4 HDR_BLNK_YELReset SwitchIn/OutPower LEDOutOutOn/Off SwitchDescriptionFront panel greenLEDFront panel yellowLED5 Ground Ground 6 FPBUT_IN In Power switch7 FP_RESET# In Reset switch 8 Ground GroundPowerNot Connected9 +5 V Power 10 N/C Not connectedFigure 11. Connection Diagram for Front Panel Header2.2.2.5.1 Hard Drive Activity LED HeaderPins 1 and 3 can be connected to an LED to provide a visual indicator that data isbeing read from or written to a hard drive. Proper LED function requires one of thefollowing:• A Serial ATA hard drive connected to an onboard Serial ATA connector• A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector51