ASROCK X99 Taichi, Manual, Page: 28 / 183

English
26 27
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.1, No. 4) This motherboard
provides 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.
CPU Optional/Water
Pump Fan Connector
(4-pin CPU_OPT/W_
PUMP)
(see p.1, No. 7) This motherboard
provides a 4-Pin water
cooling CPU fan
connector. If you plan to
connect a 3-Pin CPU water
cooler fan, please connect
it to Pin 1-3.
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 8) This motherboard
provides a 24-pin ATX
power connector. To use a
20-pin ATX power supply,
please plug it along Pin 1
and Pin 13.
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 3) This motherboard
provides an 8-pin ATX
12V power connector. To
use a 4-pin ATX power
supply, please plug it along
Pin 1 and Pin 5.
Serial Port Header
(9-pin COM1)
(see p.1, No. 21) This COM1 header
supports a serial port
module.
FAN_VOLTAGE
GND
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1 2 3 4
FAN_VOLTAGE
GND
CPU_FAN_SPEED
FAN_SPEED_CONTROL
1 2 3 4
12
1
24
13
4 1
8 5
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1