On 6 Oct 2005, at 3:52 pm, ibooklist at matthurst.fastmail.fm wrote: > I bought a 512meg memory card from Crucial for my G4 1.2mhz iBook and > installed it exactly as per manual, as far as I can tell. Several > times, > as it turned out, as the iBook thinks the slot is still empty - it just > shows the 256meg built in RAM. > > Any tricks or tips? Or is it just knackered chips? Same thing happened to me a year or so ago, but it turned out I just hadn't seated the RAM properly. I thought I'd pushed it in as far as it would go, but I suppose I was not pushing very hard for fear of breaking something. You shouldn't be able to see the gold contacts along the edge of the module once it's in place. Miche.