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BX2000+
ATX POWER: ATX Power Connector
B a c k u p
Main
B I O S
B I O S
PIIX4
PS/2 Mouse / Keyboard Connector
Backup
Main
BIOS
BIOS
PS/2 Mouse
6
4
PIIX4
2
PS/2 Keyboard
1
11
CPU
Pin No.
Function
3,5,7,13,1
GND
Intel
5-17
440BX
1,2,11
3.3V
4,6,19,20
VCC
10
+12V
12
-12V
18
-5V
8
Power Good
PROMISE
9
5V SB stand by+5V
14
PS-ON(Soft On/Off)
SW
CPU
PS/2 Mouse/ Keyboard
Pin No. Function
Intel
440BX
1
Data
5
2
NC
3
GND
3
4
VCC(+5V)
5
Clock
1
6
NC
PROMISE
SW
13
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