This message was posted on behalf of Intel Corporation
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In order to find the serial number (ATPO) of the processors you can refer to a QR code located at the edge of the processor and use a mobile app to scan the code, please refer to the following link for reference about where to find the ATPO:
Hope this help.
Years ago, privacy advocates had apoplectic fits - and even organized a boycott of the Pentium III processor - when Intel included serial numbers in their processors. Intel ended up completely removing the ability to programmatically read a serial number from the processor. Bottom line, you cannot read a serial number from the processor.
Of course, administrators required a way to uniquely identify systems and support was included in the DMTF's SMBIOS specification (which all systems support) for programmatically obtaining board- and/or system-level serial numbers as well as a system-level UUID. You can programmatically obtain this information directly from the SMBIOS tables of your system or through the Windows WMI interface and/or the Linux DMI interface (DMI (or, more fully, DMIBIOS) was Intel's name for SMBIOS when it was first introduced; Linux has just been "a little slow" applying this name change).
[Aside: Of course, what the DMTF did was identical to what Intel did, at least from a privacy standpoint, but while everyone took a fit when big, bad Intel did it in the processor, everyone quietly accepted it when the DMTF did it at the system level. Just saying.]
Hope this helps,