Filed under: Hardware, Cool tools, Tips and tricks, Odds and ends
When was your Mac born?
I learned this tip a while ago, but was recently reminded of it in one of Small Dog's Tech Tails newsletters. I thought I'd share it with those of you who may be curious about what secrets are hidden in your Mac's serial number.You might think those numbers and letters are random, but each one actually contains vital info about your computer. Deciphering the code reasonably simple. The alphabetic prefix consists of one or two letters designating a factory code, such as:
- F: Fremont, California, USA
- CK: Cork, Ireland
- SG or E: Singapore
- UV: Taiwan
- QT: Taiwan (Quanta Factory)
- W8: Shanghai China
- PT: Korea
- there are others, but I don't have a complete list. Perhaps I will when the comments pour in!
The first numerical character indicates the last digit of the
year of production. Common sense should tell you which decade your Mac
was made in. Using the above serial number, it's safe to assume my Cube
was made in the year 2000, not 1990 or 1980
The next two digits indicate the week of the year it was produced. So my Cube was made the 33rd week of the year 2000.
According to Macfaq.org, the next three characters are a three-digit base-34 unique identifier. (The letters 'O' and 'I' are not used, apparently to avoid confusion with the numbers zero and one.) My Cube appears to have been number 1692 within production week 33 of the year 2000.
The remainder of the serial number tells the model number, which in my example is, of course, a Power Mac G4 Cube.
To find out more about your own computer, you can save yourself the trouble of having to decode the serial number yourself by using Chipmunk's online Mac Serial Decoder.
Be sure to share your results with us and maybe we'll send your Mac a birthday card!
The next two digits indicate the week of the year it was produced. So my Cube was made the 33rd week of the year 2000.
According to Macfaq.org, the next three characters are a three-digit base-34 unique identifier. (The letters 'O' and 'I' are not used, apparently to avoid confusion with the numbers zero and one.) My Cube appears to have been number 1692 within production week 33 of the year 2000.
The remainder of the serial number tells the model number, which in my example is, of course, a Power Mac G4 Cube.
To find out more about your own computer, you can save yourself the trouble of having to decode the serial number yourself by using Chipmunk's online Mac Serial Decoder.
Be sure to share your results with us and maybe we'll send your Mac a birthday card!
![TUAW [Cafepress]](http://www.blogsmithmedia.com/www.tuaw.com/media/tuaw-cafepress-promo.png)
Reader Comments (Page 1 of 2)
Brendan said 4:16PM on 6-16-2005
What about serials that start with UV?
Reply
Euan said 4:16PM on 6-16-2005
Wonder where QT is then?
Reply
Guillermo said 11:23AM on 6-17-2005
Serial number: W84321Q0QHY
Name: PowerBook G4 (Aluminum Model 2004)
Model: M9422 PowerBook G4 1.5GHz Drive=SuperDrive
Bus speed: 166MHz
Screen size: 15 inch
Factory: W8 (Shanghai China)
URL: Technical specifications by apple-history.com
Model introduced: 2004
Production year: 2004
Production week: 32 (August)
Production number: 1972 (within this week)
Reply
Laurie said 4:16PM on 6-16-2005
UV = Taiwan. I'll add it to the post.
Reply
Euan said 4:16PM on 6-16-2005
Aha! Taiwan
Reply
Karl Otto Henriksen said 4:16PM on 6-16-2005
Serial number: W84180BKQHX (cleaned up from 'w84180BKQHX')
Name: PowerBook G4 (Aluminum Model 2004)
Model: Mxxxx PowerBook G4 1.33GHz
Bus speed: 166MHz
Screen size: 15 inch
Factory: W8 (Shanghai China)
URL: Technical specifications by apple-history.com
Model introduced: 2004
Production year: 2004
Production week: 18 (May)
Production number: 393 (within this week)
GUIELLERMO: Mine is older, but yours is wiser :)
Reply
Brooks said 4:16PM on 6-16-2005
Serial number: UV41971AQHV
Name: iBook G4 (Early 2004)
Model: Mxxxx iBook G4 1.2GHz
Bus speed: 133MHz
Screen size: 14 inch
Factory: UV (Taiwan)
URL: Technical specifications by apple-history.com
Model introduced: 2004
Production year: 2004
Production week: 19 (May)
Production number: 8136 (within this week)
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aprodite said 4:16PM on 6-16-2005
Serials that start with RM mean that your machine was Refurbished/Remanufactured.
Reply
Brandon said 8:05PM on 6-27-2005
The 3 digits following the factory code are when the Mac was made. First digit is the year, second two are the week of that year.
Example: YM339... is YM factory (not sure which one that is, I just know its in China or Taiwan), 2003, week 39. BTW, this is one of the first Rev. A dual G5s to hit the public market.
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jbot said 12:57PM on 11-08-2005
Serial number: G84219Q2QJB
Name: eMac (USB 2.0)
Model: M9425 eMac 1.25GHz
Bus speed: 166MHz
Screen size: 17 inch
Factory: G8 (USA)
URL: Technical specifications by apple-history.com
Model introduced: 2004
Production year: 2004
Production week: 21 (May)
Production number: 11222 (within this week)
Reply
Brett said 4:16PM on 6-16-2005
Now this post obviously required some research :>
Very cool and informative, here are the specs on one of my machines:
Model: M9623 iBook G4 1.2GHz
Bus speed: 133MHz
Screen size: 12 inch
Factory: UV (Taiwan)
Production year: 2005
Production week: 02 (January)
Production number: 4181 (within this week)
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Childoferna said 3:01PM on 6-17-2005
Serial number: XA0370JGK59
Name: Power Macintosh G4 Cube
Model: M7642 PowerMac G4 Cube 450MHz
Bus speed: 100MHz
Factory: XA (ElkGrove/Sacramento, California)
URL: Technical specifications by apple-history.com
Model introduced: 2000
Production year: 2000
Production week: 37 (September)
Production number: 628 (within this week)
So... XA means ElkGrove/Sacramento
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Mike said 4:16PM on 6-16-2005
My info, serial removed
Name: Power Macintosh G5 (June 2004)
Model: M9457 PowerMac G5 (June 2004) 2.5GHz-DP
Bus speed: 1.25GHz
Factory: G8 (USA)
URL: Technical specifications by apple-history.com
Model introduced: 2004
Production year: 2005
Production week: 09 (March)
Production number: 1787 (within this week)
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Kevin Ballard said 4:16PM on 6-16-2005
Serial number: V731557CMVZ
Name: PowerBook G4 (Aluminum screen=17)
Model: M8793 PowerBook G4 1.0GHz
Bus speed: 166MHz
Screen size: 17 inch
Factory: V7 (Taiwan)
URL: Technical specifications by apple-history.com
Model introduced: 2003
Production year: 2003
Production week: 15 (April)
Production number: 6030 (within this week)
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Lee said 9:25AM on 10-18-2005
Model: Mxxxx PowerBook G4 1.67GHz
Bus speed: 166MHz
Screen size: 17 inch
Factory: W8 (Shanghai China)
Production year: 2005
Production week: 06 (February)
Production number: 49 (within this week)
Very odd. My Powerbook was ordered 1-31-2005 and shipped from China on 2-3-2005. I got it 2-7-2005, but it wasn't made until the 6th week of the year? :)
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Hank Alexander said 4:16PM on 6-16-2005
Serial number: XB0181H1HSG
Name: Power Macintosh G4 (AGP Graphics)
Model: M7629 PowerMac G4 500MHz
Bus speed: 100MHz
Factory: XB (ElkGrove/Sacramento, California)
URL: Technical specifications by apple-history.com
Model introduced: 1999
Production year: 2000
Production week: 18 (May)
Production number: 1735 (within this week)
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Rohan said 4:16PM on 6-16-2005
Uhhh... The site says my model is a QuickSilver (2002), yet it is clearly a FW800 PowerMac. Its got the mirror drive doors and the FW800, plus two FW400. According to Apple Support, MDD Pmacs are the ones w/o FW800. Something's wrong!
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Tina Vance said 4:16PM on 6-16-2005
Serial Removed:
Model: Mxxxx iMac G4 1.25GHz
Bus speed: 166MHz
Screen size: 17 inch
Factory: QP (China)
URL: Technical specifications by apple-history.com
Model introduced: 2003
Production year: 2004
Production week: 21 (May)
Production number: 472 (within this week)
Reply
Daniel Davis said 2:56PM on 9-13-2005
I don't have a serial number, is this just on newer Macs? Mine's a G4-450DP Gigabit...
Machine Model: Power Mac G4
CPU Type: PowerPC G4 (2.9)
Number Of CPUs: 2
CPU Speed: 450 MHz
L2 Cache (per CPU): 1 MB
Memory: 768 MB
Bus Speed: 100 MHz
Boot ROM Version: 4.1.8f5
Serial Number:
Sales Order Number:
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butch said 4:16PM on 6-16-2005
Lee:
If Jan 1st was week #1, then week #6 is from 01-30 to 02-05....
Reply