Gigabyte GA-X99-UD4 - Page 24

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Hardware Installation
1/2) ATX_12V_2X4/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.
DEBUG
PORT
G.QBOFM
131
2412
ATX
DEBUG
PORT
G.QBOFM
ATX_12V_2X4
8
4
ATX_12V_2X4:
Pin No. Denition
1 GND(Onlyfor2x4-pin12V)
2 GND(Onlyfor2x4-pin12V)
3 GND
4 GND
5 +12V(Onlyfor2x4-pin12V)
6 +12V(Onlyfor2x4-pin12V)
7 +12V
8 +12V
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 -5V
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)
5
1
When you overclock the CPU, make sure to connect one end of the included 1 to 3 power cable to
the ATX_12V_2X4 power connector and the other three to the power supply to ensure the system
is provided with enough power.