Article ID: 000054875 Content Type: Product Information & Documentation Last Reviewed: 11/09/2022

Is the CPUID the Same as the ATPO (Serial Number) of the Processor?

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Summary

Lists difference between CPUID and the ATPO (Serial Number).

Description

What is the difference between ATPO and CPUID?

Resolution

The CPUID and the ATPO (Serial Number ) numbers are not the same.

CPUID

The processor ID (CPUID) is a combination of the processor family, processor model, and processor stepping reported in a hexadecimal format. For example, processor number i5-7300U has CPUID of 806E9, so the same processor that is installed in a different computer will have the same CPUID as well.

You can run the Intel® Processors Identification Utility to get the CPUID. For more information refer to CPUID Information for Intel® Processors

ATPO (Serial Number)

ATPO stands for Assembly Test Process Order.  Every processor manufactured will have a unique identifier called ATPO (serial number) that is unique to that processor only.

For more information on the ATPO, refer to Where Can I Find Intel® Boxed Processor Numbers for Warranty?

Related Products

This article applies to 89 products