ASROCK B85M - 2.6 Onboard Headers and Connectors

26
English
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.1, No. 2)
(3-pin CPU_FAN2)
(see p.1, No. 3)
is 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.
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 6)
is 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.
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 1)
is 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.
Infrared Module Header
(5-pin IR1)
(see p.1, No. 23)
is header supports an optional
wireless transmitting and
receiving infrared module.
Serial Port Header
(9-pin COM1)
(see p.1, No. 22)
is COM1 header
supports a serial port
module.
12
1
24
13
GND
IRRX
DUMMY
+5VSB
IRTX
1
CCTS #1
RRTS#1
DDSR #1
DDTR #1
RRXD 1
GND
TTX D1
DDCD #1
1
RRI# 1
GND
+12V
FAN_SPEED
5
8
1
4
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL