Specifications

ASUS H81M-C R2.0
2-27
Memory Configuration
Memory Scrambler [Enabled]
AllowsyoutoenableordisableMemoryScramblersupport.
Memory Remap [Enabled]
Allows you to enable or disable remapping the memory above 4GB.
[Enabled] Enables the function.
[Disabled] Disables this function.
2.6.5 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]
[Disabled] The USB devices can be used only for the BIOS setup program.
[Enabled] Enables the support for USB devices on legacy operating systems (OS).
[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.
Intel xHCI Mode [Smart Auto]
[Smart Auto] Enables the operation of xHCI controller.
[Auto] Keeps the last operation of xHCI controller in OS during bootup.
[Enabled] Enables the function.
[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.
USB Single Port Control
USB3_1~2 [Enabled]
Allows you to enable or disable an individual USB port. Refer to the section 1.2.3
Motherboard layout in this user guide for the locations of the USB ports. Configuration
options: [Enabled] [Disabled].
USB_3~6, 9~12 [Enabled]
Allows you to enable or disable an individual USB port. Refer to the section 1.2.3
Motherboard layout in this user guide for the locations of the USB ports. Configuration
options: [Enabled] [Disabled].