ASROCK H55M/USB3 R2.0 Quick Installation Manual page 18

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.2 No. 17)
Chassis Speaker Header
(4-pin SPEAKER 1)
(see p.2 No. 21)
Chassis and Power Fan Connectors
(4-pin CHA_FAN1)
(see p.2 No. 22)
(3-pin PWR_FAN1)
(see p.2 No. 4)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.2 No. 3)
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.
1 8 1 8 1 8
1 8 1 8
® XP / XP 64-bit OS:
® TM
7 / 7 64-bit / Vista / Vista
1 2 3 4
ASRock H55M/USB3 Motherboard
TM
64-bit OS:
This header accommodates
several system front panel
functions.
Please connect the chassis
speaker to this header.
Please connect the fan cables
to the fan connectors and
match the black wire to the
ground pin.
Please connect a CPU fan cable
to this connector and match
the black wire to the ground pin.
Pin 1-3 Connected
3-Pin Fan Installation