Bios Set-Up Program Function Keys; Legacy Usb Support - Ciara Astro PW64-QB User Manual

4.3.2 BIOS set-up program function keys

BIOS Set-up Program Function Key Description

4.3.3 Legacy USB support

Legacy USB support enables USB devices to be used even when the operating system's USB drivers are not yet available. Legacy USB
support is used to access the BIOS Setup program, and to install an operating system that supports USB. By default, Legacy USB
support is set to Enabled.
Legacy USB support operates as follows :
1. When you apply power to the computer, legacy support is disabled.
2. POST begins.
3. Legacy USB support is enabled by the BIOS allowing you to use a USB keyboard to enter and configure the BIOS Setup
program and the maintenance menu.
4. POST completes.
5. The operating system loads. While the operating system is loading, USB keyboards and mice are recognized and may be
used to configure the operating system. (Keyboards and mice are not recognized during this period if Legacy USB support
was set to Disabled in the BIOS Setup program.)
6. After the operating system loads the USB drivers, all legacy and non-legacy USB devices are recognized by the operating
system, and Legacy USB support from the BIOS is no longer used.
To install an operating system that supports USB, verify that Legacy USB support in the BIOS Setup program is set to Enabled and
follow the operating system's installation instructions.
NOTE
It is recommended to connect USB keyboard and mouse devices to USB 2.0 ports (black) as the operating system installation may be
interrupted if keyboard and mouse devices are connected to the SuperSpeed USB 3.1 gen. 1 ports (blue) or SuperSpeed+ USB 3.1 gen.
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