Gigabyte Z490M - Page 13

DEBUG
PORT
G.QBOFM
131
2412
ATX
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.
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_2X4:
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_2X4
DEBUG
PORT
G.QBOFM
41
85
3/4) CPU_FAN/SYS_FAN1/2/3 (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 speed control function requires the use of a fan with fan speed control design.
For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
PinNo. Denition
1 GND
2 VoltageSpeedControl
3 Sense
4 PWM Speed Control
CPU_FAN/SYS_FAN1
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
1 1
SYS_FAN2 SYS_FAN3
DEBUG
PORT
G.QBOFM
1
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