Updating memory on laptop
If you’d like to upgrade the memory in one of these models, an Apple Authorized Service Provider can help.Before you schedule an appointment, confirm that the specific Apple Authorized Service Provider offers memory upgrade services.
Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria: If you hear these tones, confirm that the memory you installed is compatible with your i Mac and that it's installed correctly by reseating the memory.
For detailed information about the memory installed in your i Mac, click System Report.
Then choose Memory under the Hardware section in the left side of System Information.
"Top" refers to the slots closest to the display; "bottom" refers to the slots closest to the stand.)These i Mac computers have two side-by-side Synchronous Dynamic Random-Access Memory (SDRAM) slots in the bottom of the computer.
The maximum amount of random-access memory (RAM) you can install in each computer is: You can use a 1GB or 2GB RAM module in each slot for i Mac (Mid 2007) and i Mac (Early 2008).