Acer Aspire T690 Aspire T690/Power FH Service Guide - Page 73

SYS_FAN1: System Cooling Fan Connector Pin Signal Name Function 2 +12V Power +12V 3 Sense Sensor ATX1: 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 Signal Name +3.3V -12V Ground PS_ON COM COM COM -5V +5V +5V +5V Ground ATX12V1: ATX 12V Power Connector Pin Signal Name 1 Ground 2 Ground 3 +12V 4 +12V Front Panel Header The front panel header (PANEL1) provides a standard set of switch and LED connectors commonly found on ATX or Micro ATX cases. Refer to the table below for information: Illustration Pin Signal 1 HDD_LED(+) 3 HDD_LED(-) 5 Reset_SW 7 Reset_SW 9 RSVD 11 RSVD 13 RSVD Function Hard disk LED(+) Hard disk LED(-) Reset ground Reset signal Reserved Reserved Reserved Pin Signal 2 Power LED (+) 4 Power LED (-) 6 PWR_SW 8 PWR_SW 10 KEY 12 LAN LED(+) 14 LAN LED(-) Function Power LED (+) Power LED (-) Power button signal Power button ground Key LAN LED(+) LAN LED(+) 70 Chapter 5