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1) ATX_12V (+12V Power Connector)
This connector (ATX_12V) supplies the CPU operation voltage (Vcore).
If this "ATX_12V connector" is not connected, system cannot boot.
2) ATX (ATX Power)
AC power cord should only be connected to your power supply unit after ATX power cable and
other related devices are firmly connected to the mainboard.
k8nnxp_1001_q.p65
3
1
10
1
- 25 -
25
Pin No.
Definition
1
GND
4
2
GND
2
3
+12V
4
+12V
Pin No.
Definition
1
3.3V
2
3.3V
3
GND
4
VCC
20
5
GND
6
VCC
7
GND
8
Power Good
9
5V SB (stand by +5V)
10
+12V
11
3.3V
12
-12V
13
GND
14
PS_ON(soft on/off)
11
15
GND
16
GND
17
GND
18
-5V
19
VCC
20
VCC
Hardware Installation Process
2003/8/18, ¤U¤È 05:51
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