If I am installing memory into my late-2012 27" iMac, does it matter into which of the four memory slots I install the two memory modules I am installing?
Thanks
DanK
iMac (27-inch, Late 2012), OS X Mountain Lion (10.8.3)
You should have slot 1 and 3 (from the top) filled with the OEM RAM - add yours to slots 2 & 4 (best if they are a matching kit). This will result in this picture in your system information:
That means each "pair" is matched and will give you the best performance.
(You did order RAM from a reputable vendor?)
You should have slot 1 and 3 (from the top) filled with the OEM RAM - add yours to slots 2 & 4 (best if they are a matching kit). This will result in this picture in your system information:
That means each "pair" is matched and will give you the best performance.
(You did order RAM from a reputable vendor?)
Aren't two slots already taken up by the installed memory? Then use the empty tow,
If you removed the factory memory and are adding two new modules then put them in the two slots the factory memory was in.
How ever in this last case why not leave the factory memory in and simply add the new memory?
I removed the two 4GB modules that came with the computer, but didn't pay attention where they were (oops!). I am installing two new 8GB modules. Sounds like I should have them in 1 and 3, right?
I was told (Apple store) that I shouldn't leave in the original modules, that i shouldn't mix modules. Is that correct?
I see no reason not to add the new to the original. Users do it all the time.
In a worst case scenario if the system becomes unstable you can always remove the originals then.
Here's Apple's page on installing the memoryiMac (27-inch, Late 2012): Installing or replacing memory
I was told (Apple store) that I shouldn't leave in the original modules, that i shouldn't mix modules. Is that correct?
There is absolutely no reason why you couldn't leave the OEM RAM in. The Apple store person appears to need a bit more training; the screenshot I posted is from my iMac which has run perfectly for two years with OEM RAM (2 GB each) along with my added third party OWC RAM (4 GB each).
Installing memory: which slots?
