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The VIA P4PB 266E mainboard requires an ATX power supply for powering
the system. Before inserting the power supply connector, always make sure
that all components are installed properly to ensure that no damage will be
caused.
ATX 20-Pin Power Connector: ATXPWR
This connector is for the ATX power supply. To connect to the ATX power
supply, make sure the plugs of the power supply are inserted in the correct
orientation and the pins are properly aligned. Then, push down the plugs firmly
into the connector.
10
ATXPWR
1
AUX12V
ATX 12V Power Connector: AUX12V
This 12V power connector is used to provide power to the CPU.
ATXPWR Pin Definition
PIN
SIGNAL
1
3.3V
2
3.3V
3
GND
4
5
GND
6
7
GND
8
PW_OK
9
5V_SB
10
12V
Power Supply
20
11
2
4
1
3
PIN
11
12
13
5V
14
15
5V
16
17
18
19
20
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
5V
5V
2-7
Installation
Socket 478
266E
AUX12V Pin
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
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