User Guide
ASUS X99-WS/IPMI
3-39
Chapter 3
EHCI Legacy USB Support [Enabled]
[Enabled] Your system supports the USB 2.0 devices in legacy operating systems.
[Disabled] Your USB 2.0 devices can be used for BIOS setup only and cannot be
recognized in the boot devices list.
[Auto] Your system automatically detects the presence of USB 2.0 devices at
startup. If any USB 2.0 devices are detected, the xHCI legacy USB support
is enabled.
xHCI Hand-off [Disabled]
[Enabled] Enables the support for operating systems without an xHCI hand-off
feature.
[Disabled] Disables the xHCI Hand-off support.
EHCI Hand-off [Disabled]
[Enabled] Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled] Disables the EHCI Hand-off support.
Mass Storage Devices
AMI Virtual CDROM 1.00 [Auto] / AMI Virtual Floppy0 1.00 [Auto] / AMI Virtual
HDisk0 1.00 [Auto] / AMI Virtual CDROM1 1.00 [Auto] / AMI Virtual Floppy1 1.00
[Auto] / AMI Virtual HDisk1 1.00 [Auto]
These items describe the emulation type of each storage device. Select [Auto] to
emulate the device according to its media format.
Conguration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CD-ROM]
• The optical drives are emulated as [CD-ROM].
• Drives without media are emulated according to their drive type.
USB Single Port Control
This item allows you to enable or disable the individual USB ports.
Refer to section 1.2.2 Motherboard layout for the location of the USB ports.