User manual
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  4.4.3 South Bridge Conguration
  Onboard HD Audio
Select [Auto], [Enabled] or [Disabled] for the onboard HD Audio feature. If 
you select [Auto], the onboard HD Audio will be disabled when PCI Sound 
Card is plugged.
Front Panel 
    Select [Auto] or [Disabled] for the onboard HD Audio Front Panel.
On/Off Play
    With ASRock On/Off Play users can connect their portable audio devices, 
    such as an MP3 player or a mobile phone to the PC and listen to music 
    through the computer’s speakers even when the computer is turned off.
  Onboard LAN
This allows you to enable or disable the onboard LAN feature.
  Good Night LED
  Enable  this  option  to  turn  off  Power  LED  when  the  system  is  power  on. 
The keyboard LED will also be turned off in S1, S3 and S4 state. The de-
fault value is [Auto].










