I am looking into buying a 2009 Mac Pro 8 core 2.26GHz, and have found one that I think I could fix. Here is what the ad says the problem is. "The machine will freeze off and on when coming out of sleep mode. It also freezes occasionally and requires a hard boot. I pulled all but 8 gig and it seems to of stabilized the system However, I will include the extra 24 gig with the system." To me it sounds like a RAM issue, but are there any issues with this particular model that I should be aware of? Or what do you think would cause these problems? Thanks!