Hello - I just got a mid-2010 MacBook Pro 13" through a customer. She complained that it randomly went to sleep all the time and considered it "broken." Indeed it does, even in target disk mode or booted to an external HD. We did SMC reset to no effect. Can't run memory tests since it won't stay awake. She's buying a new machine rather than fix this one as it's not under AppleCare. So now I've got this MacBook Pro that would otherwise be okay...just wanted ideas thrown out there. Is it a) the logic board b) the battery c) the SMC itself d) something else and is it something I could fix myself? I can install a new logic board, I suppose, but that's between 400 and 500 US dollars...so if it's that, this machine is going on sale for parts, which is what my group normally does anyway. We don't do hardcore Mac repair because of the cost. Is it a bad logic board?