Hi there, I got my iMac (27", i5 2.7, 4GB) just last week and today I installed additional Crucial Rams, 2x4GB 1333Mhz. So in total I have 12GB, and the About page on my iMac verifies that. Well, I ran Geekbench last week and scored 7949 with approx. 6451 in memory performance. A link to last week's results http://cl.ly/8dch. Then today, I ran Geekbench twice, the first time I got an overall score of approx. 7500 (don't have those results anymore, sorry). The second time I got 7920, but the memory performance is actually worse with a score of 6295. A link to today's results http://cl.ly/8dcs. How is that possible? Did I install the Rams wrong so the older Rams are prioritised or something like that? Basically, what I did was that the former Rams (2x2GB) used the top two slots and I placed the new Rams (2x4GB) in the bottoms two slots. Thanks in advance!