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crazybubba64
Joined: 03 Jul 2018
Posts: 1371
Location: WI, USA
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 Posted: Sun May 12, 2019 6:28 pm Post subject: Intel FPO's and Country of Origin/Manufacture |
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I've seen a couple of lists around the net for the FPO prefixes, and where they correspond to.
Unlike these many (seemingly) dead threads and old sites, I'm going to try to maintain this.
Before I drop my list, please note that many Intel processors have multiple FPO/lot codes. Older chips tend to have one printed on the front, and the other on the back. I believe the code on the back is for the chip fabrication itself, as the dates are often many weeks before the front code. The front code is related to the assembly of the processor itself. I try to guess the mfg date of a chip based off of its assembly date rather than fab date, but that's just me.
ANYWAYS, back to the big list. I think I have most of these down, but please correct me (or share any that I don't have)
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0 : Costa Rica
1 : Philippines
2 : USA
2L : ????
2V : ????
3 : Costa Rica
35 : ????
4 : USA
5 : China
6 : USA
7 : Philippines
8 : Ireland
9 : Malaysia
A : Malaysia
C : USA
D : ????
E : Philippines / China
G : Japan
I : Malaysia / USA
J : USA
K : Korea
L : Malaysia
NF : ????
O : Philippines
P : USA
Q : Malaysia
R : Philippines
T : ????
U : Philippines
V : Malaysia
X : USA / Vietnam
Y : Ireland
Z : ????
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I gathered many of these from the following sources:
https://cpumuseum.jimdo.com/guides-tutorials/intel-pentium-identification/
http://www.cpu-world.com/forum/viewtopic.php?t=10537
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Last edited by crazybubba64 on Thu Oct 24, 2019 6:37 pm; edited 5 times in total |
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Mon May 13, 2019 7:00 am Post subject: |
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That may be useful to identified these CPU with plant location  |
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xhoba
Joined: 20 Apr 2009
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Location: Picardie, France
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xhoba
Joined: 20 Apr 2009
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Location: Picardie, France
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crazybubba64
Joined: 03 Jul 2018
Posts: 1371
Location: WI, USA
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| Posted: Mon May 13, 2019 8:31 am Post subject: |
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Updated, thanks!
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Mon May 13, 2019 12:54 pm Post subject: |
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I tried this once lol and gave up, as Intel started reusing prefixes and it got confusing quickly LOL
Especially when Intel started contracting out assembly/test and even some fab production
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crazybubba64
Joined: 03 Jul 2018
Posts: 1371
Location: WI, USA
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| Posted: Mon May 13, 2019 1:09 pm Post subject: |
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| CPUShack wrote: | I tried this once lol and gave up, as Intel started reusing prefixes and it got confusing quickly LOL
Especially when Intel started contracting out assembly/test and even some fab production |
I don't mind having multiple countries listed for prefixes, I mainly want to figure out the mystery ones.
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rjluna2
Joined: 27 Oct 2014
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Location: Hiram, GA, USA
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Wed Sep 22, 2021 2:42 pm Post subject: Re: Intel FPO's and Country of Origin/Manufacture |
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| crazybubba64 wrote: | | Older chips tend to have one printed on the front, and the other on the back. I believe the code on the back is for the chip fabrication itself, as the dates are often many weeks before the front code. |
I found an example that has two separate date codes here:
Observe:
Reverse rotated 270°:
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Thu Oct 27, 2022 1:09 pm Post subject: |
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I have two separate location of this CPU:
Intel A80386-33 IV
sSpec ID: SX544
Date of Manufacture: 7th Week of 1992
Location of Manufacture: Malaysia
Location of Manufacture: Korea
Observe:
Reverse, Rotated 90 degree:
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TASOS
Joined: 15 Oct 2016
Posts: 168
Location: Athens Greece
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Wed Nov 16, 2022 9:27 am Post subject: |
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I probably needed to create a spreadsheet for tracking purpose for my collection  |
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TASOS
Joined: 15 Oct 2016
Posts: 168
Location: Athens Greece
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Wed Nov 16, 2022 3:00 pm Post subject: |
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Here is what I have complied so far:
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Code City Country
0 San Jose Costa Rica
1 Cavite Philippines
2 USA
2L
2V
3 Costa Rica
35
4 USA
5 Shanghai China
6 Chandler USA
7 Philippines
8 Leixlip Ireland
9 Penang Malaysia
A Malaysia
C USA
D
L Malaysia
NF
O Philippines
P USA
Q Malaysia
R Mantila Philippines
T
U Philippines
V Malaysia
X USA/Vietnam
Y Leixlip Ireland
Z
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