Subscribe to MMUG-Chat

Re: [MMUG] Re: Imac 27 inch

Apple consider the RAM to be a user replaceable part, so as long as you don't force anything it should be fine. [link] They may ask you to refit the original RAM if you are having issues that could be related to it failing, or being out of spec etc. Boot into Apple hardware test (hold D on boot, or opt+D to boot via the internet) & run the extended test if you want to be sure it is OK after install. Enjoy the glory of the old platinum interface in AHT.