Intel Core i5-6500 with S-Spec code SR2BX
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– RSPEAK_START safety function Software Guard Extensions, their code can strongly protect against malware with the programmer is not at all so far delivered processors sixth Core i generation available.
At the launch of the latest, sixth generation of Core i processors named Skylake had mentioned as a novelty, the code protection function Software Guard Extensions (SGX) Intel. Thus programmers should be able to better protect against manipulation including through verification of digital signatures IHE software. In a Product Change Notification (PCN 114074-00) Intel now says, however, that at SGX previously delivered Skylake batches not be activated.
Only when Skylake versions with certain S-Spec code works accordingly SGX. Maybe these changes are one reason for the supply difficulties at the Skylake chips.
It is noteworthy that only the Intel Desktop (LGA1151-) versions of Core i5, Core i7 and Xeon E3-1200 upcoming v5 mentioned. These are namely also those types of CPU, which in combination with the Q chipsets (or C236) vPro features like Trusted Execution Technology (TXT) can be used. In other words: With a Core i3, Pentium or Celeron SGX works may not in any case
Table from Intel PCN 114074-00 
Picture: Intel
According to the PCN the Skylake chips to be delivered with the SGX-grade S-Spec code from 26 October. In fact, one of the c’t editorship carries around two weeks ago in the German retail-selling Core i5-6500 the S-Spec code SR2BX and is therefore incompatible SGX: That would work only with a Core i5-6500 with SR2L6 <. /> p>
CPUID and Stepping equal
By Software can be SGX-ready and SGX-disabled Skylakes hardly differ because Intel neither the CPUID nor the Stepping (Revision R-0 wants to change).
So far, except Fujitsu also only a few of the major PC brands new Skylake office computer vPro and Q170 respectively presented with Q150 and also the introduction of the single-socket Xeons with Skylake inner life is still pending. (CIW)
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