Asus P10S-M - Page 78

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Chapter 4: BIOS Setup
XHCI Hand-off [Disabled]
This item is set to [Disabled] bydefaultfortheEHCI(enhancedhostcontrollerinterface)
supportbyXHCIdriversinoperatingsystems.
[Enabled] SupportXHCIbyBIOSforoperatingsystemswithoutXHCIsupport.
[Disabled] SupportXHCIbyXHCIdriversforoperatingsystemswithXHCIsupport.
USB Mass Storage Driver Support [Enabled]
Allows you to enable or disable the USB Mass Storage driver support.
Congurationoptions:[Disabled][Enabled]
Port 60/64 Emulation [Enabled]
This allows you to enable the I/O port 60h/64h emulation support. This should be enabled for
thecompleteUSBkeyboardlegacysupportfornon-USBawareOSes.
Congurationoptions:[Disabled][Enabled]
USB hardware delays and time-outs
USB transfer time-out [20 sec]
Allows you to select the USB transfer time-out value.
Congurationoptions:[1sec][5sec][10sec][20sec]
Device reset time-out [20 sec]
Allows you to select the USB device reset time-out value.
Congurationoptions:[10sec][20sec][30sec][40sec]
Device power-up delay [Auto]
Thisallowsyoutosetthemaximumtimethedevicewilltakebeforeitproperlyreportsitselfto
theHostController.
Congurationoptions:[Auto][Manual]
Mass Storage Devices
Allows you to select the mass storage device emulation type for devices connected.
Congurationoptions:[Auto][Floppy][ForcedFDD][HardDisk][CD-ROM]
Legacy USB Support [Enabled]
[Disabled] TheUSBdevicescanbeusedonlyfortheBIOSsetupprogram.Itcannot
be recognized in boot devices list.
[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.