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What's DOS?
Posts: 1
Registered: ‎12-03-2008
Location: UT, US
Views: 2,676
Message 1 of 3

T60p: Intel Virtualization Technology & Execute Disable Bit

I have a T60P laptop and I am trying to get Server 2008 Hyper-V installed and working on it.


I set the virtualization Technology to enabled in the bios (version 2.23) and when I tried to start hyper-v it failed.  I found out that you need execute disable bit enabled also.  The problem is as soon as I enable that, it disables the virtualization technology through the software.  What I see is that they are both enabled in the bios, but the Intel Processor Identification Utility shows the virtualization techology as No.  If I disable Execute disable bit, then it shows virtualization technology as yes.  


Any ideas???




 Moderator note: Type added to subject line for clarity.

Message Edited by Agotthelf on 04-05-2009 07:06 PM
What's DOS?
Posts: 1
Registered: ‎05-04-2009
Location: Chapel Hill, NC, USA
Views: 2,340
Message 2 of 3

Re: Intel Virtualization Technology & Execute Disable Bit

Im having the same problem. I think there is likely either a chipset or BIOS error here. The only long term solution would be to have a working version of the BIOS released.
Retired Guru
Posts: 993
Registered: ‎03-10-2009
Location: Michigan
Views: 2,327
Message 3 of 3

Re: Intel Virtualization Technology & Execute Disable Bit



I have no experience with Server 2008 Hyper-V, but do have some with the similar VMware. In the course of setting that up I came across the following links:


The bottom line seems to be that hardware VT may actually reduce performance on Core Duo, which does not support EM64T. VMware disables hardware VT in software for this reason; it seems likely that Server 2008 Hyper-V does the same. So I don't think it's a BIOS / chipset bug.



Results of Your Ideal Business-Class Laptop survey, concluded 2009-07-29.

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