Asus M2A74-AM SE User Manual download pdf (Page 35)

Chapter 2: BIOS information 2-11

Take caution when changing the settings of the PCI PnP menu items. Incorrect eld values

can cause the system to malfunction.

Plug and Play O/S [No]

When set to [No], BIOS congures all the devices in the system. When set to [Yes] and if

you install a Plug and Play operating system, the operating system congures the Plug and

Play devices not required for boot. Conguration options: [No] [Yes]

2.4.6 USB Conguration

The items in this menu allows you to change the USB-related features. Select an item then

press <Enter> to display the conguration options.

The Module Version and USB Devices Enabled items show the auto-detected values. If

no USB device is detected, the item shows None.

USB Functions [Enabled]

Enables or disables the USB functions. Conguration options: [Enabled] [Disabled]

USB 2.0 Controller [Enabled]

Enables or disables the USB 2.0 Controller. Conguration options: [Enabled] [Disabled]

Legacy USB Support [Auto]

Allows you to enable or disable support for Legacy USB storage devices, including USB ash

drives and USB hard drives. Setting to 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. Conguration options: [Disabled] [Enabled]

[Auto]

USB 2.0 Controller Mode [HiSpeed]

Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed

(12 Mbps). Conguration options: [FullSpeed] [HiSpeed]

HDAudio Controller [Enabled]

Allows you to enable or disable the HD Audio Controller. Conguration options: [Disabled]

[Enabled]

Front Panel Select [HD Audio]

Allows you to set the HD audio mode. Conguration options: [AC97] [HD Audio]

Onboard LAN Controller [Enabled]

Allows you to enable or disable the Onboard LAN. Conguration options: [Enabled] [Disabled]

Onboard LAN Boot ROM [Disabled]

Allows you to enable or disable the Onboard LAN Boot ROM. Conguration options:

[Enabled] [Disabled]

2.4.5 PCI PnP

The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices.

The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA

devices, and setting the memory size block for legacy ISA devices.

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Asus M2A74-AM SE User Manual Page 35