How to identify a CPU chip uniquely?

[idata]

Greetings! I would like to know how I can identify a particular CPU chip uniquely. In other words, I don't just want to know that the chip in my computer is an Intel (R) Core(TM)2 Duo processor; I want to know the unique serial number for that chip (so I can differentiate it from another such chip).

Searching through the software developer's manual and the community shows that this could be done in the Pentium(R) or older processors using the "CPUID" instruction. However this capability doesn't exist in later processors.

So, how can I do this for more recent processors?

Thanks.

-Chaitanya

[idata]

Hello there,

Have you checked this link below?

http://www.intel.com/assets/pdf/appnote/241618.pdf http://www.intel.com/assets/pdf/appnote/241618.pdf

Otherwise, may be someone else can assist on this.

All the best,

Regards,

Aryan

[idata]

Hi, thanks for the response. Yes, I did look at this (app note 485). Section 3.1.4 talks about a unique Processor Serial Number. However this feature was discontinued after the Pentium III as per this app note. Hence I wonder how this can be done on later-generation CPU's.

Regards,

-Chaitanya

[idata]

Hello Chaitanya,

The best place to ask for information will be the Intel Software Community.

http://www.intel.com/software http://www.intel.com/software

http://www.intel.com/opensource/ http://www.intel.com/opensource/

All the best,

Regards,

Aryan

[idata]

OK, thanks for the response!

Regards,

-Chaitanya