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Where Can I Find Intel® Boxed Processors and Fan Part Numbers?

Last Reviewed: 08-Dec-2016
Article ID: 000005609

Intel® Boxed Processor FPO and ATPO Serial numbers

Finished Process Order (FPO) and Assembly Test Process Order (ATPO) Serial Number determine if your processor is eligible for a warranty exchange or return.

All Intel® Boxed Processors have the numbers inscribed on the top of the processor package. 
To find the Finished Process Order (FPO) and Assembly Test Process Order (ATPO), enter your desktop or server processor number:


Enter processor number:


Processor markings:

Sample processor image:


Now, return to the Warranty Center to submit a claim.


Note Only upper-case letters are used in serial numbers.
If the numbers are not found in the Warranty Center tool, double-check that the numbers and letters did not get confused.
We have found that 2's are seen as Z's, and 8's are seen as B's.



I don’t know my processor number

The easiest way to find your processor number is to use the Intel® Processor Identification Utility.

You can also use the Intel® System Support Utility.

I can’t find my processor number

We provide warranties for boxed processors only. Pre-installed processors don't have processor numbers.

How do I identify my Intel® China Boxed Processor?

See instructions on how to identify your Intel® China Boxed Processor.

How do I read the ATPO Serial Number for Intel® Boxed Processors?

You can find the ATPO number on the box which is listed under S/N. For example: S/N: M5248TF502100 is the ATPO number.

If you don't have the box, see how to read ATPO serial numbers using third-party tools and devices.

Intel® Boxed Desktop Processor thermal solution markings

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

We use multiple manufacturers to supply boxed thermal solutions. Fan markings differ for each manufacturer. Find the required markings 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.


Where do I find fan part numbers and manufacturer part numbers?

  • 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 number on the fan sticker.

Intel® Boxed Desktop Processor Manufacturer


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

Delta Fan Thermal

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

Fujikura Fan Thermal

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

Nidec Fan Thermal

Foxconn* fan follows the Manufacturer Part Number format FNXXXXXX.

Foxconn Fan Thermal

Intel® Thermal Solution follows the Manufacture Part Number Format GXXXXX-XXX.

Intel Thermal Solution

Intel® Fan BTX follows the Manufacture Part Number Format HXXXXX-XXX.

Intel Fan BTX


Related topics
Frequently asked questions about Intel® Desktop Processor Warranty
Intel® Processor numbers: laptop, desktop, and mobile device
What do Intel® Server Processor numbers mean?
How to identify a boxed vs. an OEM processor
Warranty guide for Intel® Processors

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