Intel BLKD946GZABL Product Specification - Page 53
Front Panel Header
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Technical Reference 2.7.2.3 Front Panel Header This section describes the functions of the front panel header. Table 24 lists the signal names of the front panel header. Figure 15 is a connection diagram for the front panel header. Table 24. Front Panel Header Pin Signal In/ Out Description Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up to +5 V 3 HDA# Out Hard disk active LED Reset Switch 5 Ground Ground 7 FP_RESET# In Reset switch Power 9 +5 V Power Pin 2 4 6 8 10 Signal In/ Out Description Power LED HDR_BLNK_GRN Out Front panel green LED HDR_BLNK_YEL Out Front panel yellow LED On/Off Switch FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected Dualcolored Power LED - + N/C Power Switch Singlecolored Power LED + - 9 87 65 43 21 +5 V DC Reset Switch - Hard Drive Activity LED + OM18331 Figure 15. Connection Diagram for Front Panel Header 2.7.2.3.1 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 53