Gigabyte B450M DS3H V2 (rev. 1.0) [13/41] 2 atx_12v atx 2x4 12v power connector and 2x12 main power connector

Gigabyte B450M DS3H V2 (rev. 1.0) [13/41] 2 atx_12v atx 2x4 12v power connector and 2x12 main power connector
DEBUG
PORT
G.QBOFM
131
2412
ATX
1/2) ATX_12V/ATX (2x4 12V Power Connector and 2x12 Main Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all the components
onthemotherboard.Beforeconnectingthepowerconnector,rstmakesurethepowersupplyisturned
off and all devices are properly installed. The power connector possesses a foolproof design. Connect the
power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. If 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). If 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(softOn/Off)
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 for 2x12-pin
ATX)
23 +5V (Only for 2x12-pin ATX)
12 3.3V (Only for 2x12-pin
ATX)
24 GND(Onlyfor2x12-pinATX)
ATX_12V:
PinNo. Denition PinNo. Denition
1 GND(Onlyfor2x4-pin12V) 5 +12V (Only for 2x4-pin 12V)
2 GND(Onlyfor2x4-pin12V) 6 +12V (Only for 2x4-pin 12V)
3 GND 7 +12V
4 GND 8 +12V
ATX_12V
DEBUG
PORT
G.QBOFM
58
14
Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
Thesefanheadersarenotcongurationjumperblocks.Donotplaceajumpercapontheheaders.
3/4) CPU_FAN/SYS_FAN1 (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire
is the ground wire). The motherboard supports CPU fan speed control, which requires the use of a CPU
fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be
installed inside the chassis.
CPU_FAN
DEBUG
PORT
G.QBOFM
1
SYS_FAN1
DEBUG
PORT
G.QBOFM
1
PinNo. Denition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
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