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Chapter 1
1.7.2 ATX Main Power Connectors: PW1/PW2
This connector supports the power button on-board. Using
the ATX power supply, functions such as Modem Ring Wake-
Up and Soft Power Off are supported on this motherboard .
T h i s p o w e r c o n n e c t o r s u p p o r t s i n s t a n t p o w e r - o n
functionality, which means that the system will boot up
instantly when the power connector is inserted on the board.
ATX 4-pin power connector only support +12V voltage.
Pin PW1 Signal
3
1
1
3
2
4
Pin PW2 Signal
1
1 0
2 0
2
3
4
5
6
7
8
1
1 1
9
10
Note:
When you set up P4 power supply, both PW1 and PW2 must
be connected to power.
Important:
To switch on your power supply, please make sure:
1. Memory Module is properly installed.
2. Power supply setup is OK.
GND
+12V
3.3V
3.3V
GND
5V
GND
5V
GND
PW-OK
5V_SB
12V
1-16
Motherboard 4PE800
Pin PW1 Signal
2
GND
4
+12V
Pin PW2 Signal
11
3.3V
12
-12V
13
GND
14
PS-ON
15
GND
16
GND
17
GND
18
-5V
19
5V
20
5V
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