Intel KD875PBZLKPAK10 Product Specification - Page 69
Front Panel Connector
UPC - 735858160209
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Technical Reference 2.8.3.1 Front Panel Connector This section describes the functions of the front panel connector. Table 33 lists the signal names of the front panel connector. Figure 21 is a connection diagram for the front panel connector. Table 33. Front Panel Connector Pin Signal In/Out Description Pin Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up 2 (750 Ω) to +5 V 3 HAD# 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− N/C Power Switch Dual-colored Power LED Single-colored Power LED 9 8 7 6 5 4 3 2 1 +5 V DC Reset Switch Hard Drive Activity LED OM15966 Figure 21. Connection Diagram for Front Panel Connector 2.8.3.1.1 Hard Drive Activity LED Connector 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 • An add-in hard drive connected to the SCSI hard drive activity LED connector For information about The SCSI hard drive activity LED connector Refer to Section 1.7.3.2, page 31 69