I can't find serial number for my computer
I can't find the serial number on my iMac computer
I can't find the serial number on my iMac computer
If your logic board was never replaced, you can find it in System Profiler. Under Apple Menu, choose About this Mac and you'll see a button for More Info or System Profiler, or something like that.
On the newer iMacs, it is also stamped on the bottom side of the stand (base, foot, whatever you wish to call it).
I can't find serial number for my computer