So according to everymac, my PowerMac G4 is a Late 2003 MDD, Model ID: PowerMac3,6, Model Number M8570 and EMC 1914C. I already knew what Mac it was when I bought it way back when, I wanted a PowerMac that could boot OS 9 and this one popped up on eBay and being that it matched the specs for the final PowerMac G4 Apple ever released I bought it and I've been happy with it (well, until recently but that's another story, feel free to look up my other topic about that if you can be arsed, I still need help). So, model numbers and emc numbers never really stood out to me until recently. Basically I found via everymac that there was only one Mac with EMC 1914C. There are several 1914's but only the single CPU 1.25 "late 2003 MDD" had the C in the number. Well, according to everymac. The EMC number on 1914C Macs, and 1914 Macs, and in fact I would presume all MDD Macs which share the M8570 model number I believe, is found on the back of the machine. There's some text below the PCI card port hole cover things, and above the USB/Firewire ports that says "PowerMac G4" and under that gives various power rating information. "Designed by Apple in California. Model Number: M8570 EMC: 1914 Input voltages blah blah blah Certified blah blah blah" And so on. The EMC of course varying between MDD models but the rest of the text is pretty much identical if it's an M8570. I could be wrong about this of course but every MDD I've seen on ebay recently where this part of the back was visible in the pictures seems to suggest at the very least the 1914 and 1914C MDD's have this. Except mine doesn't. Mine says: "Designed by Apple in California. Model Number: M8570 Input voltages blah blah blah Certified blah blah blah" It's completely missing that all important EMC number. I can't find any info on EMC numbers other than, not all Macs seemed to have them but most did, and it seems that the MDD's didn't have such versions. Just strikes me a little odd that, every MDD I've seen lately seemed to have the EMC number. I even found a fellow 1914C on ebay, because it said so on the back of the machine, in one of the pictures. If I stick my macs serial number through one of the checkers that exist online it was apparently assembled in Cork, Ireland, in December of 2003. Which was about mid way through the 1914C's life. Did early June 2003 MDD's not have an EMC number? Or did they stop putting the EMC on it? I know it doesn't really matter too much but I still wonder.