ASROCK A770CROSSFIRE - V1.0 User Manual page 28

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G. To activate the front mic.
For Windows
Please select "Front Mic" as default record device.
If you want to hear your voice through front mic, please deselect "Mute"
icon in "Front Mic" of "Playback" portion.
For Windows
Go to the "Front Mic" Tab in the Realtek Control panel.
Click "Set Default Device" to make the Front Mic as the default record
device.
System Panel Header
(9-pin PANEL1)
(see p.11 No. 13)
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.11 No. 12)
Chassis Fan Connector
(3-pin CHA_FAN1)
(see p.11 No. 20)
CPU Fan Connector
(4-pin CPU_FAN1)
FAN_SPEED_CONTROL
CPU_FAN_SPEED
(see p.11 No. 4)
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin
CPU fan still can work successfully even without the fan speed control function.
If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this
motherboard, please connect it to Pin 1-3.
ATX Power Connector
(24-pin ATXPWR1)
(see p.11 No. 38)
XP / XP 64-bit OS:
®
Vista
/ Vista
64-bit OS:
®
TM
TM
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 a chassis fan
cable to this connector and
GND
match the black wire to the
+12V
CHA_FAN_SPEED
ground pin.
Please connect the CPU fan
cable to this connector and
4
3
match the black wire to the
+12V
2
GND
1
ground pin.
Pin 1-3 Connected
3-Pin Fan Installation
Please connect an ATX power
1
13
supply to this connector.
12
24
2 8
2 8
2 8
2 8
2 8

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