1224 Views 1 Reply Latest reply: May 26, 2009 9:53 PM by Uelogy2008
Hiya and wlecome to Apple discussions.
I found a discussion (http://forums.macrumors.com/showthread.php?t=421391) that it saying in essence that a matching (suitable) pair of RAM sticks should be installed at the bottom (moving the exisiting ones up, if need be - but you should have free slots); you can find out by going to the Apple in your finder bar, clicking "About This Mac" and then "More Info"; under "memory" (in the new window) it will tell you the empty slots.
The memory wiring diagramme was here:
hope that helps