Biostar A75MH Bios Setup - Page 13

USB Configuration - drivers

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A75MH / A55MH UEFI BIOS Manual Fan Ctrl Start Value This item sets CPU FAN Start Speed Value. Options: 50 (Default) Fan Ctrl Sensitive The bigger the numeral is, the higher the FAN speed is. Options: 30 (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 (Only for A75MH) The item allows you to enable or disable USB3.0 (XHCI) Controller support. Options: Enabled (Default) / Disabled XHCI Hand-Off (Only for A75MH) This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change should be claimed by XHCI driver. Options: Disabled (Default) / Enabled 12

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A75MH / A55MH UEFI BIOS Manual
12
Fan Ctrl Start Value
This item sets CPU FAN Start Speed Value.
Options:
50 (Default)
Fan Ctrl Sensitive
The bigger the numeral is, the higher the FAN speed is.
Options:
30 (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 (Only for A75MH)
The item allows you to enable or disable USB3.0 (XHCI) Controller support.
Options:
Enabled (Default) / Disabled
XHCI Hand-Off (Only for A75MH)
This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change should be claimed by XHCI driver.
Options:
Disabled (Default) / Enabled