I have a 1.42 eMac and I have been under the impression that all the eMacs can only use 512 modules in their two slots making a total of a Gig of ram. The apple store only gives an option to ram it up to a gig and I've seen second hand ones that have been specced up but never with more than a Gig of ram. I remember my old G4 500 had 4 slots and was only able to use 1.5 gigs. HOWEVER. I noticed a computer shop advertising a Gig of ram on a single module for an eMac and suggesting that with two of them you could ram your mac well up. I wrote to them an suggested that they may have made an error, but they wrote back, thanked me for my email but said that one can indeed use two of these modules and run 2 gig of memory on an emac. They said they know of many people doing this. My question to the gurus is: Is this right? Are there any caveats, does it depend on the video card.