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I have a server with a pair of Intel Xeon E5-2620 CPU's in them.

The machine is a Hypervisor and I've been seeing some performance issues of late.

Doing a bit of research to see if anything has been misconfigured, I wanted to check EPT and Intel Assisted Virtualisation are enabled in the BIOS. As such, I downloaded and ran CoreInfo.exe from SysInternals (CoreInfo.exe -v)...

 Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
 Intel64 Family 6 Model 79 Stepping 1, GenuineIntel
 Microcode signature: 0B000017
 HYPERVISOR      *       Hypervisor is present
 VMX             -       Supports Intel hardware-assisted virtualization
 EPT             -       Supports Intel extended page tables (SLAT)

So apparently if there is no asterisk present, then the technology is not supported.

I've checked the corresponding spec sheet from Intel on this exact cpu (HERE) and according to that, it supports the feature.

I decided to check on another machine that I havent got in production yet. This is a Dell R630 with a pair of Intel Xeon E5-2650 CPU's and again the results are similar...

 Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz
 Intel64 Family 6 Model 79 Stepping 1, GenuineIntel
 Microcode signature: 0B000017
 HYPERVISOR      *       Hypervisor is present
 VMX             -       Supports Intel hardware-assisted virtualization
 EPT             -       Supports Intel extended page tables (SLAT)

Intel also tells me this CPU support EPT, but again CoreInfo says otherwise.

Can anybody shed any light on why this might be the case?

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