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<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="create-vm-wizard-hardware">
<title>Create Virtual Machine Wizard: Hardware</title>
<body>
<p>
Use this page to configure hardware settings for the virtual
machine.
</p>
<fig id="fig-create-vm-hardware">
<title>Creating a Virtual Machine: Hardware</title>
<xref href="images/create-vm-3.png" format="png" platform="htmlhelp">
<image href="images/create-vm-3.png" width="10cm" placement="break">
<alt>Creating a Virtual Machine: Hardware</alt>
</image>
</xref>
<image platform="ohc" href="images/create-vm-3.png" width="10cm" placement="break">
<alt>Creating a Virtual Machine: Hardware</alt>
</image>
</fig>
<p>
The following fields are available on this wizard page:
</p>
<ul>
<li>
<p><b outputclass="bold">Base Memory.</b> Select the
amount of RAM that Oracle VM VirtualBox should allocate every time
the virtual machine is started. The amount of memory
selected here will be taken away from your host machine and
presented to the guest OS, which will report this size as
the virtual machines installed RAM.
</p>
<note type="caution">
<p>
Choose this setting carefully. The memory you give to the
VM will not be available to your host OS while the VM is
running, so do not specify more than you can spare.
</p>
<p>
For example, if your host machine has 4 GB of RAM and you
enter 2048 MB as the amount of RAM for a particular
virtual machine, you will only have 2 GB left for all the
other software on your host while the VM is running. If
you run two VMs at the same time, even more memory will be
allocated for the second VM, which may not even be able to
start if that memory is not available.
</p>
<p>
On the other hand, you should specify as much as your
guest OS and your applications will require to run
properly. A guest OS may require at least 1 or 2 GB of
memory to install and boot up. For best performance, more
memory than that may be required.
</p>
</note>
<p>
Always ensure that the host OS has enough RAM remaining. If
insufficient RAM remains, the system might excessively swap
memory to the hard disk, which effectively brings the host
system to a standstill.
</p>
<p>
As with other <b outputclass="bold">Create Virtual
Machine</b> wizard settings, you can change this
setting later, after you have created the VM.
</p>
</li>
<li>
<p><b outputclass="bold">Processor(s).</b> Select the
number of virtual processors to assign to the VM.
</p>
<p>
It is not advised to assign more than half of the total
processor threads from the host machine.
</p>
</li>
<li>
<p><b outputclass="bold">Enable EFI.</b> Enables
Extensible Firware Interface (EFI) booting for the guest OS.
</p>
</li>
</ul>
<p>
Click <b outputclass="bold">Next</b> to go to the next
wizard page.
</p>
</body>
</topic>
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