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Configuring VirtualBox Virtual Machine Settings

7 bytes removed, 15:21, 10 March 2009
Virtual Machine General Settings
== Virtual Machine General Settings ==
The ''General'' category of virtual machine settings consists of four different categories groups of settings arrange arranged on tabbed pages labeled ''Basic'', ''Advanced'', ''Description'' and ''Other'':
=== Basic Settings ===
* '''Enable ACPI''' - Enables and disables Advanced Configuration and Power Interface (ACPI) support for the virtual machine allowing the guest operating system to perform power management tasks on the virtual machine's virtual devices and hardware.
* '''Enable I/O APIC''' - Enables and disable support for Advanced Programmable Interrupt Controllers (ACIP). This latest generation of interrupt controllers eliminate the 16 Interrupt Request (IRQ) limit present in old Porgammable Programmable Interface Controllers (PIC). I/O APIC must be enabled when installing 64-bit guest operating systems.
* '''Enable VT-x/AMD-V''' - Defines whether VirtualBox will take advantage of the hardware virtualization features present in Intel-VT and AMD-V capable processors. For more details on this topic refer to the chapter entitled [[An Overview of VirtualBox 2]]. Note that if hardware virtualization is enabled for one virtual machine it must be enabled for all other concurrently running virtual machines on the host.
* '''Enable Nested Paging''' - Controls whether the Nested Paging feature of hardware virtualization capable CPUs is enabled for the virtual machine.
* '''Enable PAE/NX''' - Enables or disables ''Physical Address Extension'' and NX for the virtual machine when these features are supported by the host hardware. The purpose of this feature is to allow operating systems to access more than 4GB of memory. In practice this option is only provided for compatibility with some operating systems and does not actually increase the amount of memory available to the virtual machinewhen enabled.
* '''Shared Clipboard''' - When VirtualBox Guest Additions are installed in the guest operating system, this setting controls how clipboard data is shared between the guest and the host. In ''Bi-directional'' mode, clipboard data is automatically shared between the host and the guest. In ''Host to Guest'' mode, only the host's clipboard data is shared with the guest (data saved to the guest clipboard is not visible to the host). Conversely, ''Guest to Host'' makes only the guest data available to the host.
* '''IDE Controller''' - Changes the type of IDE hardware controller presented to the guest operating system. Useful when adding a virtual disk created by a competing virtualization product which may have used a different virtual IDE controller.
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