1795 Views 3 Replies Latest reply: Dec 12, 2009 5:43 PM by Kenichi Watanabe
2 GB is the maximum amount of RAM your iMac will take.The more available RAM your machine has the better, if you want to know what is using RAM then run Activity Monitor, then you can see what applications are taking up a lot of RAM and quit the unnecessary apps.
The machine will also slow down as the internal HD gets to about 10% or less of capacity, if you have less than 10% left then you should look into either deleting files you don't need or get an external drive and move them to that to free up internal HD space.
If it's Core Duo (not Core 2 Duo), the 2GB (2x1GB) is the maximum RAM. If the identifier is iMac4,1, it is Core Duo
I am almost maxxed out of hard drive space about 11gigs left.
That is more likely to be the problem, not lack of RAM. When free space on the hard drive gets low, the remaining space gets more and more fragmented into tiny pieces, as you write new data and delete old data. When there is plenty of free space, you have a large blocks of contiguous free space. Mac OS X needs free space on the startup volume for its basic operations. It write and reads hidden files to do things like virtual memory (used when you are low on real RAM). Some of those files can get very large, and if the remaining free space is in tiny pieces scatter all over our drive, the system may start to bog down.
You should first off-load or delete data so that you have at least 10% of total capacity as free space. That may restore performance enough so that you don't need to get more RAM. Free up more space if possible.
Then, at some point, you should back up at least your personal data. Then erase (reformat) the internal drive and reinstall the OS and software. After confirming everything is running smoothly, restore your personal user data.
Note: It is possible the performance issue is caused by your hard drive starting to fail, or a data corruption problem. So if you do not have a good backup of at least your personal user data, you should make one now. Then, you can proceed with troubleshooting.