Serial Number = 0

Question

Level 1

20 points

Serial Number = 0

I just discovered that my serial number is "0".

I just checked it via the "About this Mac" window and in the System Profiler. This is the first time I've seen this instead of the actual serial number.

Has anyone else had this or know why my serial number isn't showing correctly?

Many thanks!

iMac G5 20" 1.8 Ghz, Mac OS X (10.4.11), 1.25 GB DDR SDRAM

Posted on Jan 8, 2009 3:09 PM

Reply

Answer 1

Best reply

MGW

Level 7

27,041 points

Jan 8, 2009 3:25 PM in response to Prometheus

Did you have your logic board replaced? If so, you will not have a serial number in Profiler, although it still should be under the foot of your machine. The reason the serial number is missing after a board replacement is that the number had probably been assigned to someone else, when the board was refurb'd the number was erased.

Reply

Answer 2

Prometheus Author

Level 1

20 points

Jan 8, 2009 3:30 PM in response to MGW

I did indeed have the logic board replaced.

Thanks for the info!

Reply

Answer 3

MGW

Level 7

27,041 points

Jan 8, 2009 4:02 PM in response to Prometheus

You're welcome!

Reply

Answer 4

Jan 8, 2009 11:33 PM in response to Prometheus

Apple now offers its service providers a means to 'rewrite' the serial number identifier to all currently manufactured products, and some earlier models, when a logic board is replaced.

If your service was performed in 2008 by an Apple authorized service provider, this process should have been completed by that center.

Reply

Answer 5

Prometheus Author

Level 1

20 points

Jan 9, 2009 6:11 AM in response to Michael Lafferty

That's interesting... It was replaced at an actual Apple Store a couple of years ago.

My iMac was the early 2005 (pre-iSight) model that had the typical loud fan noise issue and occasionally wouldn't reboot after long periods of being turned off. Thank goodness for Apple Care because they eventually had to replace the logic board, power supply, and hard drive.

I just use my old serial number when I need one.

Reply

Answer 6

Jan 10, 2009 12:55 AM in response to MGW

I have an iSight whose board has not been changed and a serial number does not show up when I click on: About This Mac, but when I go into More Info., there is a serial number under Hardware. I assume this is as it should be.

Reply

Answer 7

MGW

Level 7

27,041 points

Jan 10, 2009 6:53 AM in response to Edward Boghosian

That s perfectly normal.

Reply