ASRock Z170A-X1/3.1 User Manual - Page 67

USB Configuration, Legacy USB Support, PS/2 Simulator

Page 67 highlights

4.6.5 USB Configuration Z170A-X1/3.1 Legacy USB Support Enable or disable Legacy OS Support for USB 2.0 devices. If you encounter USB compatibility issues it is recommended to disable legacy USB support. Select UEFI Setup Only to support USB devices under the UEFI setup and Windows/Linux operating systems only. PS/2 Simulator Enable this item for the complete USB keyboard legacy support for non-USB aware operating system. 63 English

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63
English
Z170A-X1/3.1
4.6.5
USB Configuration
Legacy USB Support
Enable or disable Legacy OS Support for USB 2.0 devices. If you encounter USB
compatibility issues it is recommended to disable legacy USB support. Select UEFI
Setup Only to support USB devices under the UEFI setup and Windows/Linux
operating systems only.
PS/2 Simulator
Enable this item for the complete USB keyboard legacy support for non-USB aware
operating system.