This document explains how to locate information needed to determine if your processor is eligible for a warranty return.

Intel Processor FPO / ATPO Serial Number Finder

This tool is intended to help customers find Finished Process Order (FPO) and Assembly Test Process Order (ATPO) Serial Number of Intel processors. This information is needed to determine if the processor is eligible for a warranty exchange or return. If the ATPO serial number is not present, please provide the FPO number.

Processor number:

Processor markings:

Sample processor image:


Intel® Desktop Boxed Processor thermal solution markings

All boxed Intel® Processor thermal solutions have a three-year warranty, and you can return the thermal solution without returning the processor.

Intel uses multiple manufacturers to supply its boxed thermal solutions, so fan markings will differ for each manufacturer. The required markings can be found on the Intel labels attached to the top of the fan.

Note Both the fan part number and the manufacturer part number are required for warranty processing.
  • Fan Part Number (Example: E41752-002) is the first number on the fan sticker.
  • Manufacturer Part Number (Example: DTC-DAA01) is usually the third line on the fan sticker.

Intel® Desktop Boxed Processor Manufacturer

A Delta* fan follows the Manufacturer Part Number format DTC-XXXXX.

Delta Fan Thermal

A Fujikura* fan follows the Manufacturer Part Number format FHP-XXXXX.

Fujikura Fan Thermal

A Nidec* fan follows the Manufacturer Part Number format F09A-XXXXXX.

Fujikura Fan Thermal

A Foxconn* fan follows the Manufacturer Part Number format FNXXXXXX.

Fujikura Fan Thermal

Online tools and warranty videos

Intel® Desktop Processor online tools and videos
Intel® Warranty Center
  • Check your processor warranty coverage online by providing your FPO / ATPO Serial Number.
  • This tool also provides a way to check warranty for other Intel® retail products.
China Boxed Processor Identification
  • This online tool provides a way for PRC customers to check if their processor is a legitimate Intel® China boxed processor.
Intel Warranty Guide for Processors
  • This video provides answers to the most frequently asked questions on this subject.

Common errors to avoid when recording your processor markings

Serial numbers include both upper-case letters and numbers. Customers sometimes mistake a number for a letter or vice versa.

Some of the most common errors are listed below in the chart.

Examples of letters and numerals commonly confused
0ONumeral 0 and Upper-case letter O
1INumeral 1 and Upper-case letter I
8BNumeral 8 and Upper-case letter B
65Numeral 6 and Numberal 5
2ZNumeral 2 and Upper-case letter Z
VUUpper-case letter V and Upper-case letter U
IlUpper-case letter I and Lower-case letter l ("el") 1
1 Upper-case letter is used for serial number. Lower-case letter is never used.

When you cannot recognize your Intel® product serial number, contact customer support.