Acer Aspire X1420G Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 83

PWR2: ATX 24-pin Power Connector Pin Signal Name Pin 1 +3.3V 13 2 +3.3V 14 3 Ground 15 4 +5V 16 5 Ground 17 6 +5V 18 7 Ground 19 8 PWRGD 20 9 +5VSB 21 10 +12V 22 11 +12V 23 12 +3.3V 24 PWR1: ATX 12V Power Connector Pin Signal Name 1 Ground 2 Ground 3 +12V 4 +12V Signal Name +3.3V -12V Ground PS_ON Ground Ground Ground -5V +5V +5V +5V Ground Front Panel Header The front panel header (LEDH1) provides a standard set of switch and LED headers commonly found on ATX or micro-ATX cases. Refer to the table below for information: LEDH1 Pin Signal Name Function Pin Signal Name 1 VCC Reset Switch (+) 2 GLED0 3 HDD_LEDN Hard disk LED (-) 4 GLED1 5 GND Reset Switch (-) 6 PWRSW 7 HWRST_L Reset Switch (+) 8 GND 9 F_PANEL_DET Reserved 10 KEY 11 NC Reserved 12 VCC 13 NC Reserved 14 F_LAN_LED Function *MSG LED (+) *MSG LED (-) Power Switch (+) Power Switch (-) No pin Reset Switch (+) Reset Switch (+) Aspire AX1400 Service Guide 75