Century A780FULLHD System Panel Header, Several system front panel, Functions, Ground pin

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.

For Windows® XP / XP 64-bit OS:

Click “Audio I/O”, select “Connector Settings” , choose “Disable front panel jack detection”, and save the change by clicking “OK”.

For Windows® VistaTM / VistaTM 64-bit OS:
Click the right-top “Folder” icon	, choose “Disable front

panel jack detection”, and save the change by clicking “OK”. G. To activate the front mic.

For Windows® XP / XP 64-bit OS:

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® VistaTM / VistaTM 64-bit OS:

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	This header accommodates
(9-pin PANEL1)	several system front panel
(see p.2 No. 18)	functions.

Chassis Speaker Header		Please connect the chassis
(4-pin SPEAKER 1)		speaker to this header.
(see p.2 No. 19)
Chassis Fan Connector		Please connect a chassis fan
(3-pin CHA_FAN1)		cable to this connector and
(see p.2 No. 20)		match the black wire to the
		ground pin.
CPU Fan Connector	1	Please connect the CPU fan
(4-pin CPU_FAN1)		cable to this connector and
	2
(see p.2 No. 4)	3	match the black wire to the
	4

ground pin. 2 5

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ASRock A780FullHD Motherboard