Gigabyte GA-Z270-Gaming K3 User Manual page 13

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
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
required power, the result can lead to an unstable or unbootable system.
5 8
1 4
ATX_12V_2X4
12 24
1 13
ATX
3/4) CPU_FAN/SYS_FAN1/2 (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
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
1
1
CPU_FAN
SYS_FAN1/2
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.
ATX_12V_2X4:
Pin No.
1
2
3
4
ATX:
Pin No.
1 3.3V
2 3.3V
3
4 +5V
5
6 +5V
7
8 Power Good
9
10 +12V
11 +12V (Only for 2x12-pin
12 3.3V (Only for 2x12-pin
Pin No.
1 GN
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
- 13 -
Pin No.
5
6
7 +12V
8 +12V
Pin No.
13 3.3V
14 -12V
15
16
17
18
19
20 NC
21 +5V
22 +5V
23
24