I've read endless threads about this issue, but there is something I haven't found yet and I hope somebody could suggest something. For what I've read so far, a considerable amount of MBPs manufactured during 2010 has a latent problem in the hardware that crashes the system. This problem has emerged usually after upgrading the OS to Lion or latter versions.
Question 1: it's not yet clear to me what it is bugged. Is it the GPU (Nvidia GeForce 300M) or the logic board? I've heard that many people had the logic board changed. I suppose a 'logic board' is the 'mother board', right?
Question 2: I'm the owner of a MBP manufactured in 2010, but I haven't upgraded the OS so far, so I'm happy with my Mac. But now I need to upgrade, and I'm afraid I could have a bad surprise. Is there a way to detect if my laptop is affected by this hardware bug before upgrading the OS? Maybe a testing tool to examine the hardware under stressing GPU switching? If anybody can suggest a proven test to run on Snow Leopard, I'll be grateful.
Question 3: being that a hardware related issue, it's not possible to be fixed by software patches. Why has it been latent on many Snow Leopard OS powered machines, then?
Thanks for your help