Aaeon SBC-400 User Manual page 31

DRQ1/DACK1 (default)
JP10
JP11
In single-board-computer (non-passive-backplane) applications
you will need to connect power directly to the SBC-400 board
using CN4. This connector is fully compatible with the standard
PC power supply connector. See the following table for its pin
assignments:
Pin Function
1 N.C.
2 +5 V
DC
DRQ3/DACK3
JP10
JP11