Motherboard Manual
10
2.5 Connectors
and
Slots
ATXPWR2: ATX Power Source Connector
This connector pr12V to CPU power circuit.
Pin Assignment
1
+12V
2
+12V
3
Ground
4 Ground
ATXPWR1: ATX Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
Pin
Assignment Pin
Assignment
13 +3.3V
1 +3.3V
14 -12V
2 +3.3V
15 Ground
3 Ground
16 PS_ON
4 +5V
17 Ground
5 Ground
18 Ground
6 +5V
19 Ground
7 Ground
20 NC
8 PW_OK
21 +5V
9 Standby
5V
22 +5V
10 +12V
23 +5V
11 +12V
24 Ground
12 +3.3V
Note1:
Before you power on the system, please make sure that both ATXPWR1 and
ATXPWR2 connectors have been plugged-in.
Note2:
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.