ASROCK Fatal1ty B450 Gaming-ITX/ac Handbuch Seite 37

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".
Chassis/Water Pump Fan
Connectors
(4-pin CHA_FAN1/WP)
(see p.1, No. 18)
(4-pin
CHA_FAN2/WP)
(see p.1, No. 7)
CPU Fan Connector
(4-pin CPU_FAN1)
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.1, No. 1)
AMD Fan LED Header
Fatal1ty B450 Gaming-ITX/ac Series
(see p.1, No. 5) connectors. If you plan to
connect a 3-Pin chassis
GND
FAN_VOLTAGE_CONTROL
water cooler fan, please
FAN_SPEED
connect it to Pin 1-3.
FAN_SPEED_CONTROL
12 24
1 13
4 3 2 1
This motherboard
provides a 4-Pin CPU fan
(Quiet Fan) connector.
GND
FAN_VOLTAGE
If you plan to connect a 3-
CPU_FAN_SPEED
Pin CPU fan, please
FAN_SPEED_CONTROL
This motherboard
connect it to Pin 1-3.
provides three 4-
Pin water cooling
chassis fan
51
84
connector. To use a 20-pin
(4-pin AMD_FAN_
LED1)
(see p.1, No. 4)
112V G R B
31