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This document helps you identify server processor markings. These processor markings let customer support know if you are eligible for a warranty exchange.
Processor markings
All Intel® Server Processors have markings inscribed on the top of the processor package. The most recent Intel® Server Processor packages and markings are described here.
The serial number is required for warranty processing. The serial number of a processor is typically a combination of the finished process order (FPO) number and the assembly test process order (ATPO) number. If the ATPO Number is not present, provide the FPO number.
If you have the FPO number and ATPO numbers in hand, you can check your warranty coverage online at the Warranty Center.
If you are not sure about the processor package or socket for your processor, collect the processor markings and contact Phone Support, or go to Contact Support.
LGA 771 - Intel® Xeon® Processor
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Line 1 |
CPU speed/L2 cache size/Bus speed |
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Line 2 |
Processor Family (Example: Xeon) |
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Line 3 |
sSpec # and Manufacturing Country |
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Line 4 |
Copyright Marks + Platform Compatibility Guide |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Assembly Test Process Order (ATPO) |
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Line 7 |
Partial Serial Number | |
Serial Number = Line 5 + Line 6 + Line 7 (Example: 7823N808-8900186H9806)
sSpec = Line 3 (Example: SL022)
LGA 775 - Intel® Xeon® Processor 
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Line 1 |
CPU speed/L2 cache size/Bus speed |
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Line 2 |
Processor Family (Example: Xeon) |
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Line 3 |
sSpec # and Manufacturing Country |
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Line 4 |
Processor number (Example: X3220) |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Assembly Test Process Order (ATPO) |
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Line 7 |
Partial Serial Number | |
Serial Number = Line 5 + Line 6 + Line 7 (Example: 2822B890-1Z688177B9996)
sSpec = Line 3 (Example: SL028)
LGA 1156 - Intel® Xeon® Processor
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Line 1 |
Copyright Marks |
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Line 2 |
Trademark and Branding + Processor Family (Example: Xeon) +
Processor Number (Example: 3460) |
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Line 3 |
sSpec # + CPU Speed |
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Line 4 |
Country of Manufacture |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Assembly Test Process Order (ATPO) | |
Serial Number = Line 5 + Line 6 (Example: P090T875-6382)
sSpec = Line 3 (Example: SC0QF)
LGA 1155 - Intel® Xeon® Processor
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Line 1 |
Copyright Marks |
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Line 2 |
Trademark and Branding + Processor Family (Example: Xeon) +
Processor Number (Example: E3-1290V2) |
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Line 3 |
sSpec # + CPU Speed |
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Line 4 |
Country of Manufacture |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Assembly Test Process Order (ATPO) | |
Serial Number = Line 5 + Line 6 (e.g. M384N098- 7504)
sSpec= Line 3 (Example: SB0BC)
LGA 1366 - Intel® Xeon® Processor
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Line 1 |
Copyright Marks |
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Line 2 |
Trademark and Branding + Processor Family (Example: Xeon) +
Processor Number (Example: E5-5501) |
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Line 3 |
sSpec # and Manufacturing Country |
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Line 4 |
CPU speed/L2 cache size/Bus speed |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Serial Number | |
Serial Number = Line 6 (e.g. 4102)
sSpec = Line 3 (e.g. S02BG)
LGA 2011 - Intel® Xeon® Processor
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Line 1 |
Copyright Marks |
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Line 2 |
Trademark and Branding + Processor Family (Example: Xeon) +
Processor Number (Example: E5-2660) |
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Line 3 |
sSpec # + CPU Speed |
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Line 4 |
Country of Manufacture |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Lot Number + Serial Number | |
Serial Number = Line 6 (Example: 3Q244225B0709)
sSpec = Line 3 (Example: ST0BR)
LGA 1356 - Intel® Xeon® Processor
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Line 1 |
Copyright Marks |
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Line 2 |
Trademark and Branding + Processor Family (Example: Xeon) +
Processor Number (Example: E5-2440) |
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Line 3 |
sSpec # + CPU Speed |
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Line 4 |
Country of Manufacture |
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Line 5 |
Finished Process Order (FPO) |
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Line 6 |
Assembly Test Process Order (ATPO) |
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Line 7 |
Partial Serial Number | |
Serial Number = Line 7 (Example: 3B0977)
sSpec = Line 3 (Example: SR8LM)
This applies to:
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