GIGA-BYTE TECHNOLOGY B550M DS3H AC - Page 15

1
31
2412
ATX
1/2) ATX_12V/ATX (2x4 12V Power Connector and 2x12 Main Power Connector)
With the use o the power connector, the power supply can supply enough stable power to all the components
on the motherboard. Beore connecting the power connector, rst make sure the power supply is turned
o and all devices are properly installed. The power connector possesses a oolproo design. Connect the
power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. I the 12V power connector is not connected,
the computer will not start.
To meet expansion requirements, it is recommended that a power supply that can withstand high
power consumption be used (500W or greater). I a power supply is used that does not provide the
required power, the result can lead to an unstable or unbootable system.
ATX:
Pin No. Denition Pin No. Denition
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON (sot On/O)
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 Power Good 20 NC
9 5VSB (stand by +5V) 21 +5V
10 +12V 22 +5V
11 +12V (Only or 2x12-pin
ATX)
23 +5V (Only or 2x12-pin ATX)
12 3.3V (Only or 2x12-pin
ATX)
24 GND (Only or 2x12-pin ATX)
ATX_12V:
Pin No. Denition Pin No. Denition
1 GND (Only or 2x4-pin 12V) 5 +12V (Only or 2x4-pin 12V)
2 GND (Only or 2x4-pin 12V) 6 +12V (Only or 2x4-pin 12V)
3 GND 7 +12V
4 GND 8 +12V
ATX_12V
41
85
- 15 -