Intel BOXDG33BUC Product Specification - Page 47
Front Panel Header
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Technical Reference 2.2.2.5 Front Panel Header This section describes the functions of the front panel header. Table 20 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header. Table 20. Front Panel Header In/ Pin Signal Out Description Pin Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up 2 to +5 V 3 HDA# Out Hard disk active LED 4 Reset Switch 5 Ground Ground 6 7 FP_RESET# In Reset switch 8 Power 9 +5 V Power 10 Signal In/ Out Description Power LED HDR_BLNK_ Out GRN Front panel green LED HDR_BLNK_ Out YEL Front panel yellow LED On/Off Switch FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected Figure 11. Connection Diagram for Front Panel Header 2.2.2.5.1 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 one of the following: • 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 connector 47