ASRock B450 Pro4 - Инструкция по эксплуатации - Страница 32

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1.  High Definition Audio supports Jack Sensing, but the panel wire on the chassis must 

support HDA to function correctly. Please follow the instructions in our manual and 
chassis manual to install your system.

2.  If you use an AC’97 audio panel, please install it to the front panel audio header by 

the steps below: 
A. Connect Mic_IN (MIC) to MIC2_L. 
B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L. 
C. Connect Ground (GND) to Ground (GND). 
D. MIC_RET and OUT_RET are for the HD audio panel only. You don’t need to 
connect them for the AC’97 audio panel. 
E. To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel 
and adjust “Recording Volume”.

Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.1, No. 26)

J _ S E N S E

O U T 2 _ L

1

M I C _ R E T

P R E S E N C E #

G N D

O U T 2 _ R

M I C 2 _ R

M I C 2 _ L

O U T _ R E T

This header is for 
connecting audio devices 
to the front audio panel.

Chassis Fan / Waterpump 
Fan Connectors
(4-pin CHA_FAN1/WP)
(see p.1, No. 27)
(4-pin CHA_FAN2/WP)
(see p.1, No. 18)
(4-pin CHA_FAN3/WP)
(see p.1, No. 17)

GND

CHA_FAN_SPEED

FAN_SPEED_CONTROL

FAN_VOLTAGE

1

2

3

4

GN D

FAN_VOLTAGE

CHA_FAN_SPEED

FAN_SPEED_CONTROL

4   3    2   1

Please connect fan cables 
to the fan connectors and 
match the black wire to 
the ground pin.

CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 5)

GND

FAN_VOLTAGE
CPU_FAN_SPEED
FAN_SPEED_CONTROL

1
2
3
4

This 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.