Adding memory to an iMac
I just upgraded my 2011 iMac from 4 MB to 8 MB. No problem; I pulled out the original two Apple sticks and put in new ones from OWC.
Question: Since there are four memory slots could I have left the 4 MBl memory sticks in place and added the 8 MB ones for a total of 12 MB? Or does memory work when its in a 2, 4, 8, 16 MB configuration?