Acorp 4S845AL User Manual page 14

Chaosdr 1 Chaosdr 1
Chaosdr 1 Chaosdr 1 Chaosdr 1
1.3.4 ATX 4-pin/20-pin Power Connector (J8/CN9/ATX)
-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 .
This power connector supports instant power-on
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 J8
1 1 1
3
3 4
Pin ATX Signal
1
10 10
2
3
4
5
6
1 11
7
8
9
10
1
Pin CN9 Signal
2
1
3
3
4
Note 2:
1. When you use PIII power supply, you must plug CN9
& ATX power connector on your system.
2. Make sure that the ATX PIII power supply can take at
least 1Amp load on the 5Volt standby lead (5VSB).
3. When you use P4 power supply, you must plug J8 &
ATX power connector on your system.
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Signal
GND
+12V
3.3V
3.3V
GND
5V
GND
5V
GND
PW-OK
5V_SB
12V
NC
GND
1 - 1 0 1 - 1 0 1 - 1 0
1 - 1 0 1 - 1 0
Pin J8 Signal
2 GND
4 +12V
Pin ATX Signal
11 3.3V
12 -12V
13 GND
14 PS-ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5V
Pin CN9 Signal
2 NC
4 +12V