Processor-wise, I confirm the Intel® Core™ i5-2400S Processor does feature AES-NI; see under the "Advanced Technologies" section here:
See also on page 11 of the processor datasheet:
Hence, I'd recommend running our Intel(R) Processor Identification Utility (click here). Once you have it open, under the "CPU Technologies" tab, you should have 'Intel(R) AES New Instructions' displayed with a 'Yes'. That should confirm it, and consequently, I'd recommend contacting the developers of both, AIDA64 and CPU-Z, for them to further-explain on why their software indicate "AES-NI is not supported".
thanks for your info.
I've just downloaded that tool, ran it - and it does say AES-NI "NO" - like it does with "Intel Virtualisation Technology" and "Hyperthreading" (that is normal for 2400S indeed).
Any option for processor in (and trust me on this "latest" EFI-BIOS) is turned on. I bought this mainboard and cpu in Germany. Could it be the mainboard not supporting this?
I would be very grateful, if you could tell me detailed info on how to proceed.
Switching from Windows 2008R2 with Hyper-V role enabled to test-Win7SP1 installation showed that AES-NI is available in this OS.
Why isn't it in kernel-equalling 2008R2 ?
Is it the installed server system or Hyper-V role, that blocks it? I did not know of any these limitations!
Thanks for info,
Just got the info while googling. When activating the hyper-v role, AES-NI becomes unavailable for parents as well as child-partitions by design.