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4-7
Connector Definitions
Power Connectors
The 24-pin ATX power connector
header (JPW1) provides power to
the motherboard. PJ1 is the 12V DC
power connector that provides alter-
native power for a special enclosure
when the 24-pin ATX power is not
in use. The 4-pin power connector
J6 provides power to onboard HDD
devices.
Chapter 4: Advanced Motherboard Setup
ATX Power 24-pin Connector
Pin Definitions (JPW1)
Pin#
Definition
13
+3.3V
14
NC
15
COM
16
PS_ON
17
COM
18
COM
19
COM
20
NC
21
+5V
22
+5V
23
+5V
24
COM
12V DC Power
Pin Definitions (PJ1)
Pin#
Definition
1-2
3-4
4-Pin HDD Power
Pin Definitions (J6)
Pin#
Definition
1
2-3
4
4-9
Pin #
Definition
1
+3.3V
2
+3.3V
3
COM
4
+5V
5
COM
6
+5V
7
COM
8
PWR_OK
9
5VSB
10
+12V
11
+12V
12
+3.3V
GND
12V
12V
GND
5V
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