User guide

System BIOS configuration 23
USB Configuration submenu
Figure 18 USB Configuration submenu
NOTE 1: When you install USB storage, USB Mass Device Configuration items are displayed. From
this item, you can get some information about the device, some information you can configure it if
needed.
Table 16 USB Configuration submenu fields
Field Description Options
USB BIOS Support This setting makes the onboard USB function unavailable during POST. Disabled
This setting allows the use of the USB function. This is the default setting. Enabled
BIOS EHCI Hand-
Off
Set this value not to support the EHCI-off. Disabled
Set this value to support the EHCI-off, this is default value. Enabled
USB Ports Set this value to enable USB ports Enabled
Turn off external and internal USB ports. Once set, all the USB ports on M/B
invalid, you can use remote KVM or clear CMOS to enable it.
Disabled
Phys Ports
Remove remote KVM and remote Media options.
Disabled
Vir Ports
Turn off both physical and virtual ports. Once set, all the USB ports invalid,
you can clear CMOS to enable it.
Disable All
Ports