Acer Aspire X3990 Acer Aspire X3990 Desktop Service Guide - Page 92

Signal, Function, F_PANEL_DET

Page 92 highlights

Front Panel Header The front panel header (F_PANEL) provides a standard set of switch and LED headers commonly found on ATX or micro-ATX cases. Refer to the table below for information: Pin Signal Function 1 VCC 5V 3 HDD_LED Hard disk LED 5 GND Ground 7 HWRST_L Reset 9 F_PANEL_DET FRONT PANEL DETECT 11 NC Reserved 13 NC Reserved Pin Signal 2 GLED0 4 GLED1 6 PWRSW 8 GND 10 KEY Function MSG LED MSG LED POWER SWITCh Ground NO PIN 12 VCC 5V 14 F_PANEL_LED FRONT PANEL LED Chapter 5 84

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