Chassis and Power Fan
Connectors
(4-pin CHA_FAN1)
(see p.11, No. 19)
(3-pin CHA_FAN2)
(see p.1, No. 26)
(3-pin PWR_FAN1)
(see p.1, No. 27)
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.1, No. 3)
(3-pin CPU_FAN2)
(see p.1, No. 2)
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 6)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 1)
PCIe Power Connector
(4-pin PCIE_PWR1)
(see p.1, No. 24)
FAN_SPEED_CONTROL
CHA_FAN_SPEED
FAN_VOLTAGE
GND
GND
FAN_VOLTAGE
CHA_FAN_SPEED
4
3
2
1
GND
+12V
CPU_F
AN_SPEED
FAN_SPEED_CONTROL
GND
FAN_VOLTAGE
CPU_FAN_SPEED
12
24
1
13
8
5
4
1
GND
+12V
DETECT
Z97M OC Formula
Please connect fan cables
to the fan connectors and
match the black wire to
the ground pin.
his motherboard pro-
vides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
his motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
his motherboard pro-
vides an 8-pin ATX 12V
power connector. To use a
4-pin ATX power supply,
please plug it along Pin 1
and Pin 5.
Please connect a 4 pin molex
power cable to this connector
when more than three graphics
cards are installed.
23