Biostar TZ77B Bios Manual - Page 13

USB Configuration - drivers

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TZ77B/TZ75B/T77 UEFI BIOS Manual Active Memory Threshold This item allows system to try to support RST when partition size > Active Page Threshold size in MB. When set to zero, the item will be in AUTO mode and check if partition size is enough at S3 entry. Options: 0 (Default) USB Configuration Legacy USB Support This item determines if the BIOS should provide legacy support for USB devices like the keyboard, mouse, and USB drive. This is a useful feature when using such USB devices with operating systems that do not natively support USB (e.g. Microsoft DOS or Windows NT). Options: Enabled (Default) / Disabled / Auto USB3.0 Support This item enables or disables USB3.0 (XHCI) Controller support. Options: Enabled (Default) / Disabled XHCI Hand-Off This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change should be claimed by XHCI driver. Options: Enabled (Default) / Disabled 12

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TZ77B/TZ75B/T77 UEFI BIOS Manual
12
Active Memory Threshold
This item allows system to try to support RST when partition size > Active Page
Threshold size in MB. When set to zero, the item will be in AUTO mode and check
if partition size is enough at S3 entry.
Options:
0 (Default)
USB Configuration
Legacy USB Support
This item determines if the BIOS should provide legacy support for USB devices
like the keyboard, mouse, and USB drive. This is a useful feature when using such
USB devices with operating systems that do not natively support USB (e.g.
Microsoft DOS or Windows NT).
Options:
Enabled (Default) / Disabled / Auto
USB3.0 Support
This item enables or disables USB3.0 (XHCI) Controller support.
Options:
Enabled (Default) / Disabled
XHCI Hand-Off
This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change should be claimed by XHCI driver.
Options:
Enabled (Default) / Disabled