mITX-SKL-H – User Guide, Rev.1.1
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8/
Internal Connectors
8.1.
Power Connector 4-Pin ATX+12 V (J31)
The mITX-SKL-H is designed to be supplied from
a standard 4-pin ATX+12 V supply or an DC jack
For more information see, Chapter 4.8 Power Consumption, or refer to the ATX Specification version 2.2.
Hot plugging of the power connectors is not allowed. Hot plugging might damage the board.
When connecting to the motherboard, turn off the main supply to make sure all the power
lines are turned off.
Figure 11: 4-Pin ATX +12 V Power Connector
Table 13: Pin Assignment 4-Pin ATX 12 V Power Connector (J31)
Pin
Signal
Type
Note
1
GND
PWR
2
GND
PWR
3
+12 V to +24 V
PWR
+24 V can be supplied to 4-pin ATX 12 V connector
4
+12 V to +24 V
PWR
+24 V can be supplied to 4-pin ATX 12 V connector
Signal Description
Signal
Description
GND
Power Supply ground signal
1
2
3
4
