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2.7 Headers & Connectors
ATX: ATX Power Source Connector
For better compatibility, we recommend to use a standard ATX 24-pin power supply for this
connector. Make sure to find the correct orientation before plugging the connector.
ATX_12V_2X4: ATX Power Source Connector
The connector provides +12V to the CPU power circuit. If the CPU power plug is 4-pin, please
plug it into Pin 1-2-5-6 of ATXPWR2.
Note
» Before you power on the system, please make sure that both ATX and ATX_12V_2X4 connectors
have been plugged-in.
» Insufficient power supplied to the system may result in instability or the peripherals not functioning
properly. Use of a PSU with a higher power output is recommended when configuring a system with
more power-consuming devices.
14 | Chapter 2: Hardware installation
Pin
Assignment
13
+3.3V
14
-12V
15
Ground
16
PS_ON (Soft On/Off)
17
Ground
18
Ground
19
Ground
20
NC
21
+5V
22
+5V
+5V (Only for 2x12-pin
23
ATX)
Ground (Only for 2x12-
24
pin ATX)
Pin
Assignment
1
Ground (Only for 2x4-pin 12V)
2
Ground (Only for 2x4-pin 12V)
3
Ground
4
Ground
5
+12V (Only for 2x4-pin 12V)
6
+12V (Only for 2x4-pin 12V)
7
+12V
8
+12V
Pin
Assignment
1
+3.3V
2
+3.3V
3
Ground
4
+5V
5
Ground
6
+5V
7
Ground
8
Power Good
9
Standby Voltage+5V
10
+12V
+12V (Only for 2x12-pin
11
ATX)
+3.3V (Only for 2x12-pin
12
ATX)
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