citrix / xenserver 5: What meas: "HVM is required ..."

Hi There !

I tried to set up a virtual server opn XenServer 5 in my XenCenter.
But it does not start, saying:

HVM is required for this operation.

I did everything as they say in there video exept: I am using the local hard disk.
I select "Windows Server 2003" from the Templates and use an image from "Windows Server 2003 R2 Standard" (BX2SFPP_DE.iso)

Does anyone have an idea ...

Thank you for every tip.
DistributedServicesAsked:
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Carl WebsterCommented:
One of two things:

1.  You do not have the virtualization option enabled in the computer's BIOS
2.  Your processors do not support virtualization
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amichaellCommented:
XenServer requires virtualization support from the CPU.  Intel's technology is called VT.  AMD's version is AMD-V.  This is an option you can enable or disable in BIOS.  What make and model server are you installing on?
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DistributedServicesAuthor Commented:
Well, VT should work, as the guys working at the data center told me, but I am not quite sure.
During installation of XenServer, the program said VT would not be there. I tried again after making sure it is not disabled in the BIOS and I did not see the message the second time I installed XenServer (maybe I clicked it away...)

The CPU is an E8400, which should support VT.
In the BIOS I only found:

Core Multiplex Technology   <Enable>
...
Virtual Appliance (VA)
VA Operation     <Enable>
....

I would expect something with ...VT..., but I have no experience with VT mainboards.
Unfortunately I don't now which mainboard is installed.
It's a rented system (http://www.cs-arena.com/index.php?module=rootserver ->08).
So far the guys where very cleaver. I would not expect them not to know/tell me if the mainboard does not support VT.
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Carl WebsterCommented:
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Carl WebsterCommented:
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DistributedServicesAuthor Commented:
It was the mainboard.
Data center had to update BIOS - now VT works :-)))
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DistributedServicesAuthor Commented:
Thank you for the links.
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