C.2
ATX Power Table
Type
Single Input Power Source - AT
Mode
Single Input Power Source - ATX
Mode
12V Input Power with 3-pin ATX
External Connector
Appendix C – 3-Pin ATX Behavior Description
Power Supply
Unit / Turn On
SBC
Powered
Mainboard
External
Powered
Peripherals
SBC
Powered
Mainboard
External
Powered
Peripherals
SBC
Powered
Mainboard
External
Powered
Peripherals
Power Supply
Unit / Turn Off
No Power
Powered
No Power
Powered
No Power
No Power
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