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BIOS Setup
MI989
User’s Manual
49
4
4.4.9
USB Configuration
BIOS Setting
Description
Legacy USB Support
Enables Legacy USB support.
Auto
disables legacy support if there is no
USB device connected.
Disable
keeps USB devices available only
for EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
USB Mass Storage
Driver Support
Enables / Disables the support for USB mass
storage driver.
USB Transfer time-
out
The time-out value for control, bulk, and
Interrupt transfers.
Options: 1 sec / 5 sec / 10 sec / 20 sec
Device reset time-out
Seconds of delaying execution of start unit
command to USB mass storage device.
Options: 10 sec / 20 sec / 30 sec / 40 sec
Device power-up
delay
The 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
100ms. But for a Hub port, the delay is taken
from Hub descriptor.
Options: Auto / Manual
USB DISK 3.0 PMAP
Options: Auto / Floppy / Forced FDD / Hard
Disk / CD-ROM
Summary of Contents for MI989 Series
Page 1: ...MI989 Series AMD V2000 Mini ITX Motherboard User s Manual Version 1 0 June 2021...
Page 12: ...6 MI989 User s Manual 1 6 Block Diagram...
Page 15: ...General Information MI989 User s Manual 9 1 1 8 Dimensions...
Page 16: ...10 MI989 User s Manual This page is intentionally left blank...
Page 20: ...14 MI989 User s Manual 2 3 Jumper Connector Locations on MI989...
Page 34: ...28 MI989 User s Manual This page is intentionally left blank...
Page 49: ...BIOS Setup MI989 User s Manual 43 4 Serial Port 1 Configuration Serial Port 2 Configuration...
Page 52: ...46 MI989 User s Manual 4 4 6 CPU Configuration...
Page 53: ...BIOS Setup MI989 User s Manual 47 4 4 4 7 IDE Configuration...
Page 57: ...BIOS Setup MI989 User s Manual 51 4 4 4 12 NVMe Configuration...
Page 58: ...52 MI989 User s Manual 4 4 13 AMD CBS...
Page 60: ...54 MI989 User s Manual 4 5 2 North Bridge Configuration...
Page 64: ...58 MI989 User s Manual This page is intentionally left blank...