Aaeon ECB-920A-A11, User Manual, Page: 20 / 46

Chapter 2 – Hardware Information 7
COM
E
xp
res
s C
ar
rier
Bo
ard
ECB
-920A
-A11
2.2.1 +5V_DUAL for ATX Power (CN38)
Pins 1-3 and 2-4 selected Pins 3-5 and 4-6 selected
+5V_DUAL for ATX (Default) Non +5V_DUAL Power
Note: To prevent unintended operation or damage to system, do not connect jumpers
on CN38 in any other configuration than shown above.
2.2.2 Audio Power Selection (CN40)
Pins 1-2
Pins 2-3
+3.3V (Default) +1.5V
2.2.3 TPM_PP Level Selection (CN43)
Pins 1-2
Pins 2-3
Pull up 4.7K to 3.3V Pull down 4.7K to GND (Default)