Asrock imb-770 用户手册

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3.3.3  South Bridge Configuration

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.
Onboard HDMI HD Audio

This allows you to enable or disable the Onboard HDMI HD Audio feature.

This allows you to enable or disable the Onboard LAN 1 feature.

This allows you to enable or disable the Onboard LAN 2 feature.

 

 

This allows you to select PCIE 2 Link Speed. The default value is [Auto].

 

 

This allows you to select PCIE 3 Link Speed. The default value is [Auto].

Mobile  platforms support Deep S4/S5 in DC only and desktop platforms 
support Deep S4/S5 in AC only. The default value is [Disabled].

This allows you to set the power state after an unexpected AC/power  loss. 
If [Power Off] is selected, the AC/power remains off when the power  
recovers. If [Power On] is selected, the AC/power resumes and the 
system starts to boot up when the power recovers.