VirtualBox 5: Motherboard Tab

  

The Motherboard tab enables users to configure virtual hardware, which is normally on the actual motherboard of a real computer.

Base Memory: This setting allows users to adjust the RAM that is supplied to the virtual machine. The memory that you have specified comes from the host OS. Hence, when starting the VM, users should make this amount of memory available as free memory on the host. Users will not be able to do this when the VM is running. Memory size can be changed after you install the guest OS, but only if you do not lower the memory amount to a level that will result in the OS not being able to boot up.

Boot Order: The guest OS has a predetermined order in which it will try to boot from an array of virtual boot devices. The Boot Order setting is where users can configure the order. The items that users can rank are the virtual Floppy, virtual CD/DVD-Rom, virtual Hard Disk, the Network, or none. The virtual machine will try to boot from a network through the PXE mechanism if you select Network. A detailed configuration must complement this selection in the command line.

Extended Features:

  • Enable ACPI- By selecting this option, VirtualBox shows the Advanced Configuration and Power Interface (ACPI) to the guest OS (for configuration of the virtual hardware). ACPI also allows VirtualBox to display the power status information of the host to the guest. VirtualBox enables the ACPI feature by default as it is used by all modern computers.
  • Enable I/O APIC- Replacing the older Programmable Interrupt Controllers (PICs) is a more modern x86 hardware feature called Advanced Programmable Interrupt Controllers (APICs). The I/O APIC allows the operating systems to be more dependable by avoiding interrupt requests (IRQ) sharing. Software support for an OS other than Windows has not been as dependable. An I/O APIC may also cause a slight decrease in speed of the guest OS.
  • Enable EFI- By selecting this option, Virtual box enables Extensible Firmware Interface (EFI) . This take place of the legacy BIOS and may be useful under advanced circumstances.
  • Hardware clock in UTC time- This option effects how the Virtual Time Clock is displayed. This may be useful for systems that are automatically set to UTC time, such as Unix or other Unix-like operating systems.

Referenced from: Virtualbox.org
 

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5/10/2018 11:21:42 AM