ASROCK 775DUAL-VSTA User Manual page 23

1. High Definition Audio supports Jack Sensing, but the panel wire on the
chassis must support HDA to function correctly. Please follow the
instruction in our manual and chassis manual to install your system.
2. If you use AC'97 audio panel, please install it to the front panel audio
header as 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 HD audio panel only. You don't
need to connect them for AC'97 audio panel.
E. Enter BIOS Setup Utility. Enter Advanced Settings, and then select
Chipset Configuration. Set the Front Panel Control option from
[Auto] to [Enabled].
F. Enter Windows system. Click the icon on the lower right hand
taskbar to enter Realtek HD Audio Manager. Click "Audio I/O", select
"Connector Settings"
detection", and save the change by clicking "OK".
System Panel Header
(9-pin PANEL1)
(see p.11, No. 13)
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.11, No. 14)
Chassis Fan Connector
(3-pin CHA_FAN1)
(see p.11, No. 15)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.11, No. 5)
, choose "Disable front panel jack
This header accommodates
PLED+
PLED-
PWRBTN# several system front panel
GND
functions.
1
DUMMY
RESET#
GND
HDLED-
HDLED+
Please connect the chassis
1
speaker to this header.
SPEAKER
DUMMY
DUMMY
+5V
Please connect the chassis fan
cable to this connector and
GND
+12V match the black wire to the
CHA_FAN_SPEED
ground pin.
Please connect the CPU fan
cable to this connector and
match the black wire to the
ground pin.
2 3 2 3
2 3 2 3 2 3