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INSTALLATIONS
MB900-R User’s Manual 13
ATX1: 24-pin ATX Power Connector
Signal Name
Pin #
Pin #
Signal Name
3.3V
13
1
3.3V
-12V
14
2
3.3V
Ground
15
3
Ground
PS-ON
16
4
+5V
Ground
17
5
Ground
Ground
18
6
+5V
Ground
19
7
Ground
-5V
20
8
Power good
+5V
21
9
5VSB
+5V
22
10
+12V
+5V
23
11
+12V
Ground
24
12
+3.3V
ATX2: ATX 12V Power Connector
Signal Name
Pin #
Pin #
Signal Name
+12V
5
1
Ground
+12V
6
2
Ground
+12V
7
3
Ground
+12V
8
4
Ground
MB900-R Edge Connectors