Technical information

54 Chapter 5
ATX_12V: ATX 12V Power Connector
Front Panel Header
The front panel header (PANEL1) provides a standard set of switch and LED headers commonly
found on ATX or Micro ATX cases. Refer to the table below for information.
Hard Drive Activity LED
Connecting pin one and pin three provides visual indication that data is being read from or
written to the hard drive. For the LED to function properly, and IDE drive should be connected to
the onboard IDE interface. The LED will also show activity for devices connected to the SCSI (hard
drive activity LED) connector.
Power/Sleep/Message Waiting LED
Connecting pin two and pin four to a single or dual-color, front panel mounted LED provides
power on/off, sleep, and message waiting indication.
Pin Signal Name
1 Ground
2 Ground
3+12V
4+12V
Pin Signal Name Function Pin Signal Name Function
1 HD_LED (+) Hard disk LED (+) 2 PWR_SLP Power LED (+)
3 HD_LED (-) Hard disk LED (-) 4 PWR_SLP Power LED (-)
5 Reset_SW_N Reset ground 6 PWR_SW_P Power button
signal
7 Reset_SW_P Reset signal 8 PWR_SW_N Power button
ground
9 RSVD Reserved 10 KEY Key
11 RSVD Reserved 12 LAN_LED (+) LAN LED (+)
13 RSVD Reserved 14 LAN_LED (-) LAN LED (-)