Winmate IH7T-RK2U, User Manual

Page: 52 / 92

USER MANUAL CHAPTER 4 AMI BIOS SETUP
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BIOS Setting Description Setting
Option Effect
Legacy USB
Support User can enable or
disable USB port.
Auto Disable legacy
support if no USB
devices are
connected
Disable Will keep USB
devices available
only for EFI
applications.
Enable Enable all the USB
devices
XHCI Hand
‐
off This is a workaround for
OSs without XHCI
hand
‐
off support. The
XHCI ownership
Change should claim by
XHCI driver.
Disable Disables this
function
Enable Enables this function
EHCI Hand
‐
off This is a workaround for
OSs without ECHI
hand
‐
off support. The
EHCI ownership change
should be claimed by
EHCI driver.
*Disabled Disables this
function
Enable Enables this function
USB Mass
Storage Driver
Support User can Enable or
disable USB mass
storage driver support. Disable Disables this
function
Enable Enables this function
USB Transfer
time
‐
out
The time
‐
out value for
control, bulk, and
interrupt transfers.
1 Sec
5 Sec
10 Sec
*20 Sec Depends on the
time
‐
out value
Device Reset
time
‐
out
USB mass storage
device start unit
command time
‐
out.
10 Sec
*20 Sec
30 Sec
40 Sec Depends on the
time
‐
out value
Device power
‐
up delay
Maximum time the
device will take before it
properly reports itself to
the host controller. Auto Uses default value:
for a root port it is
100 ms, for a Hub
port the delay is
taken from Hub
descriptor
Mass Storage
Device Mass storage device
emulation type. AUTO Enumerates devices
less than 530MB as
floppies. Forced
FDD option can be
used to force HDD
formatted drive to
boot as FDD.