Gigabyte GA-Z87M-HD3 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 power consumption
lead to an unstable or unbootable system.
5 8
1 4
ATX_12V_2X4
12 24
1 13
ATX
3/4) CPU_FAN/SYS_FAN (Fan Headers)
Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it
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.
1
CPU_FAN/SYS_FAN
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 GND
4 GND
ATX:
Pin No.
1 3.3V
2 3.3V
3 GND
4 +5V
5 GND
6 +5V
7 GND
8 Power Good
9
10 +12V
11
12
CPU_FAN: SYS_FAN:
Pin No. Pin No.
1 GND
2 +12V
3 Sense
4 Speed Control
- 13 -
Pin No.
5 +12V
6 +12V
7 +12V
8 +12V
Pin No.
13 3.3V
14 -12V
15 GND
16
17 GND
18 GND
19 GND
20 -5V
21 +5V
22 +5V
23
24
1 GND
2 +12V /Speed Control
3 Sense
4 VCC