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Power Connectors (AT&ATX Power)
The ATX power supply uses 20-pin connector and the AT power
supply uses 6-pin connector as shown in the table. Please work
according to the pin assignments and ensure they are plugged in
the right direction.
ATX Power Connector Pin Assignments (PW1)
Pin
Signal
1
+3.3V
2
+3.3V
3
4
5
6
7
8
PWROK
9
+5VSB
10
AT Power Connector Pin Assignments (PWR1)
Pin
Signal
1
2
3
4
5
6
Pin
11
12
GND
13
+5V
14
GND
15
+5V
16
GND
17
18
19
+12V
20
Pin
NC
7
VCC
8
+12V
9
-12V
10
GND
11
GND
12
SBC-657 User's Manual
Signal
+3.3V
-12V
GND
PWRONX
GND
GND
GND
-5V
+5V
+5V
Signal
GND
GND
-5V
VCC
VCC
VCC
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