5 usb configuration, Usb configuration -21 – Asus Motherboard P8Z77-M User Manual
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Chapter 2: BIOS information
2-21
Graphics Configuration
Primary Display [Auto]
Allows you to select a primary display from iGPU, PCIE, or PCI graphic devices.
Configuration options: [Auto] [iGPU] [PCIE][PCI]
iGPU Memory [64M]
This item selects DVMT 5.0 pre-allocated graphic memory size, used by the internal graphic
device.
Configuration options: [32M] [64M] [96M]~[1024M]
Render Standby [Enabled]
Allows you to enabled or disabled render standby support.
Configuration options: [Disabled] [Enabled]
iGPU Multi-Monitor [Disabled]
Allows you to enable the iGPU Multi-Monitor. For Lucid Virtu MVP function supports, set this item
to [Enabled] to empower both integrated and discrete graphics. iGPU shared system memory
size is fixed in 64MB
Configuration options: [Disabled] [Enabled]
NB PCIe Configuration
Allows you to configure the NB PCI Express settings.
PCIEX16_1 Link Speed [Auto]
Allows you to configure the PCIEX16_1 speed.
Configuration options: [Auto] [Gen1] [Gen2]
2.5.5
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.
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.
Legacy USB3.0 Support [Enabled]
[Enabled]
Enables the support for USB 3.0 devices on legacy operating systems
(OS).
[Disabled]
Disables the function.
Intel xHCI Mode [Smart Auto]
[Smart Auto]
Enables optimized xHCI.
[Auto]
Allows the system to set the xHCI.
[Enabled]
Enables the operation of xHCI controller.
[Disabled]
Disables the function.
EHCI Hand-off [Disabled]
[Enabled]
Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled]
Disables the function.