стр. 19
SIO Configuration
This section provides information on the super I/O chip and allows you to configure the serial port and
parallel port.
CSM Support
Enables or disables UEFI CSM (Compatibility Support Module) to support a legacy PC boot process.
Enabled Enables UEFI CSM. (Default)
Disabled Disables UEFI CSM and supports UEFI BIOS boot process only.
Other PCI devices
Allows you to select whether to enable the UEFI or Legacy option ROM for the PCI device controller other
than the LAN, storage device, and graphics controllers.
Do not launch Disables option ROM.
UEFI Enables UEFI option ROM only. (Default)
Legacy Enables legacy option ROM only.
This item is configurable only when CSM Support is set to Enabled