Hey how's it going, I currently have a Mac Pro and have had it for about 3+ years(unfortunately not under apple care anymore). Just so you can see what I am working with here, I bought it how it is except I purchased 4 more gigs or RAM(it had 2) making a total of 6. I purchased after doing research on which RAM I needed I asked on many forums including this one and got the same result so I got it. I read both Apples instructions on installing new RAM and the instructions that came with it. Worked perfectly for years until just now. About this Mac: (Version 10.6.7) Processor: 2 x 2.8GHz Quad-Core Intel Xeon Memory: 2 GB 800 MHz DDR2 FB-DIMM This here^^ Used to say 6 Gigs just up until 2-3 days ago and never had a problem since I bought it, til now. I cannot recall installing any new software or anything at all. I was working on a new design project and I just noticed with a couple programs open I was running a bit slow. Maybe something fried or burnt out? Maybe I worked it too much? I don't know.....I'm not a doctor...hehe. I tried opening my case and just simply taking out the RAM and putting it back in but it did not recognize it. MY RAM: ---===Top Slot===--- Factory made two 1GB sticks ---===Bottom Slot===--- OWC (custom) two 2gb sticks Any help would be very much appreciated! Also I know there are forums and such on the Apple support section of their website but is there any way, if you do not have a Apple Care(not anymore) to contact someone directly?