ATX_12V: 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 headers commonly
found on ATX or Micro ATX cases. Refer to the table below for information.
Pin
Signal Name
1
HD_LED (+)
3
HD_LED (-)
5
Reset_SW_N
7
Reset_SW_P
9
RSVD
11
RSVD
13
RSVD
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.
54
Function
Pin
Hard disk LED (+)
Hard disk LED (-)
Reset ground
Reset signal
Reserved
10
Reserved
12
Reserved
14
Signal Name
2
PWR_SLP
4
PWR_SLP
6
PWR_SW_P
8
PWR_SW_N
KEY
LAN_LED (+)
LAN_LED (-)
Function
Power LED (+)
Power LED (-)
Power button
signal
Power button
ground
Key
LAN LED (+)
LAN LED (-)
Chapter 5