Intel DQ57TM Product Specification - Page 53
Front Panel Header
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Technical Reference 2.2.2.4 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 12 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 Signal Power LED 2 FP_LED+ 4 FP_LED− On/Off Switch 6 PWR# 8 Ground Not Connected 10 N/C In/ Out Description Out Front panel green LED Out Front panel yellow LED In Power switch Ground Not connected Figure 12. 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 an internal storage device. Proper LED function requires a SATA hard drive or optical drive connected to an onboard SATA connector. 53