Intel Xeon X5690 Virtualization Technology: No ?

Hello,

I'm getting a very headache issue and need your help:

My Dell Precision T7500 equipped with Processors: Intel Xeon X5690

Spec: Intel® Xeon® Processor X5690 (12M Cache, 3.46 GHz, 6.40 GT/s Intel® QPI)

It is expected to support Virtualization Technology.

1) From Dell BIOS latest version A13, I have configured to enable VT-x (image bellow).

OS: Windows Server 2008 R2 64 bit

2) However when running the Intel Processor Identification Utility, the result shown:

Intel Virtualization Technology: No

Intel VT-x with Extended Page Table: No

3) Tested with SecurAble showing the same result:

Hardware Virtualization: No

(Note that if hardware virtualization is capable but BIOS disable the function, then this result will be Loocked-off instead of No).

4) Cannot run VirtualBox Virtual Machines:

VT-x is not available.

5) I have contact Dell and they send me DSET 2.1 (collect system information)

Result of this application saying the reverse result: VT Capable: Yes, Enable: Yes

So it's very difficult for me to explain Dell that VT-x is not function as expected.

As this error present, I cannot run VirtualBox, with VMware and Hyper-V: the 3D Graphic Driver cannot be installed.

Please help to to fix this error.

Thank you.

1) BIOS config:

2) Intel Processor Identification Utility:

3) Tested with SecurAble:

4) Cannot run VirtualBox Virtual Machines:

5) Dell DSET 2.1 result: