Chosen Solution

Was reading the latest edition of Macworld and wondering if anyone could let me know how to upgrade the RAM to 8GB…I am very much a newcomer when it comes to the inner workings of Macs - haven’t opened mine up yet after 18 months so any help would be gratefully accepted!

There is an installation guide: iMac Intel 24" EMC 2267 RAM Replacement, it is pretty much the same as for the 20" model: iMac Intel 20" EMC 2266 Repair

Here’s Apples instructions for installing RAM on your machine: http://support.apple.com/kb/ht3918