S - Front Panel Header
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Front panel header This is the 2 × 5 front panel connector on the motherboard. Pin 1 is indicated by an arrow silk-screened on the motherboard (upper right pin in this graphic).

The table below provides information about the functions supported by the front panel connector and the pins used for each. The graphic on the right shows the connector with all the pins marked.

Front Panel Function Pins
Hard Drive Activity LED 1 and 3
Power LED 2 and 4
Reset Switch 5 and 7
Power Switch 6 and 8
+5 V Power 9
Not Connected (Key) 10
Pinout diagram

Note: A front panel reset switch is not included on all computers.