5 Replies Latest reply: Nov 8, 2012 9:31 AM by Brian321
Brian321 Level 1 Level 1 (0 points)

unable to upgrade to 4 gig from 2 gig, I can upgrade up to 3 gig but computer will not boot with the 2 2 gig cards. I have a 24" mid 2007 imac


iMac (24-inch Mid 2007), OS X Mountain Lion (10.8.2)