I'm about to buy some RAM to upgrade a friends Emac and I need to determine the exact model. It's a 1GHz machine with an 80GB HDD but when i run memory finders on sites like crucial.com it says there are two versions of the 1Ghz machine. Those produced before April 13th 2004 and those produced after. I'm not hands on with this mac, so ive had to talk to my friend over the phone and she's not exactly mac or PC savy. Looking at the system profiler she just said that it told her one memory dimm was installed, but not if it was PC2700 DDR 333Mhz etc. I asked her to look for the machine model and serial number and she gave me this: Model: Emac 3.3 Does that ring any bells for anyone or can you point me in the direction of a url that will tell me (had a look on wikipedia, but it just gave general information on the different Emac variants). I take it if it is the post 2004 variant that any PC2700 33mhz 184pin dimm will be OK? I was going to get 2x 512mb to bring it upto 1GB. Do I require any tools to get into the case? or just pop it open and fit in the same way as i would on a PC. cheers.