Asus A78M-K User Guide - Page 51

2.6.3 USB Configuration The items in this menu allow you to change the USB-related features. The USB Devices item shows the auto-detected values. If no USB device is detected, the item shows None. USB Device Enable [Enabled] Allows you to enable or disable all USB ports. Configuration options: [Disabled] [Enabled] Legacy USB Support [Enabled] [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Disabled] The USB devices can be used only for the BIOS setup program. [Auto] Allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. EHCI Hand-off [Disabled] [Enabled] Enables the support for operating systems without an EHCI hand‑off feature. [Disabled] Disables the function. USB Single Port Control Allows you to enable/disable individual USB ports. 2.6.4 Onboard Devices Configuration HD Audio Device [Enabled] [Enabled] Enables the High Definition Audio Controller. [Disabled] Disables the controller. The following two items appear only when you set the HD Audio Device item to [Enabled]. Front Panel Type [HD] Allows you to set the front panel audio connector (AAFP) mode to legacy AC'97 or highdefinition audio depending on the audio standard that the front panel audio module supports. [HD] Sets the front panel audio connector (AAFP) mode to high definition audio. [AC97] Sets the front panel audio connector (AAFP) mode to legacy AC'97. SPDIF Out Type [SPDIF] [SPDIF] Sets to [SPDIF] for SPDIF audio output. [HDMI] Sets to [HDMI] for HDMI audio output. ASUS A78M-A 2-19