ThinkPad Core 2 Duo - VT-x not recognized

[enalposi]

Hello, I have been sent here my the Mod as a follow up to the thread (​http://forums.virtualbox.org/viewtopic.php?f=6&t=25243&start=0)

In summary VB doesn't recognize VT-x on my ThinkPad T61p with T7500 processor (supports VT-x: ​http://ark.intel.com/VTList.aspx) In the end I did a very simple test. I created a new XP client VM.

1. Setting 2 client processors: Error - No VT-x
2. Switch down to 1 client processor. Starts fine.

I am attaching relevant log and settings files.

Thanks.

[enalposi]

Log and Settings

[enalposi]

Looks like I cannot edit the form. Host OS: Windows 7. VT has been enabled in BIOS. I think system config details are all in log and settings files. Thanks.

[enalposi]

OK, vbox4me2 pointed me at a FAQ and this tip appears to have the issue resolved:

Another hint: after enabling VT-X/AMD-V in the BIOS you might need to switch the PC off completely, unplug it, or remove laptop battery for a minute. Ea: Reboot the Host and go into the BIOS disable vt-x, save BIOS settings, pause machine after bios boot messages power down the Host (unplug power cord!) start the Host and go into the BIOS enable vt-x, save BIOS settings, pause machine after bios boot messages power down the Host (unplug power cord!) Boot the Host.

[Technologov]

This is a BIOS bug on your host, not a VirtualBox bug. Please use Forum for such problems.

VBox team: Please close it as invalid.

-Technologov

[Sander van Leeuwen]

Try to find an update for your BIOS. We can't fix BIOS bugs.

[enalposi]

Thank you for explaining that it is a bios bug after I spent tedious time figuring out that it is a bios issue with help from vbox4me2... ;-)

Maybe could add this to a trouble shooting section in the docs as it doesn't seem to be an isolated thing.