User's Manual

2-9
Chapter 2: Motherboard information
5. AT/ATX Mode Selection jumper (3-pin AT_ATX_SEL)
In ATX mode (default), you will need to manually press the power button to
turn on the system power. In AT mode, the board will automatically turn on
when system power is connected.
Connector type HEADER 1x3p, 2.54mm pitch, S/T
21 2 3
ATX MODE
(Default)
AT MODE
AT_ATX_SEL
Pins Description
1-2 (Default) ATX mode
2-3 AT mode