A MacBook 2,1 that was my daughter's. It had been in "heavy duty" use through grad school and finally became totally unusable (wouldn't boot) when the power was dumped during an update. I got it, pulled the disk (which fortunately I was able to get the data off of) and stuck in the disk that had been pulled, working, from my MacBook 1,1 a while back. Her 2,1 booted and ran with the 1,1 disk, but would not wake after sleep -- the white light on the front was on constantly, and nothing I could think of would wake it. Power cycling would get it going, along with a message to the effect that it had been shut down improperly (implying, I think, that it was running fine "inside" even if it wasn't giving any outward signs). Reset PRAM and SMC; no change. Made sure display sleep happened before computer sleep; no change. Reinstalled 10.6.3 from DVD, fetched and ran Universal Updater to 10.6.8; no change. Poking around, it seems that this problem has been around for a while (although I've not seen it despite having three white MacBooks in the family). I saw a number of long threads, but no definitive fixes. So now what? Isaac
Boot off a TechTool Pro 6 recovery DVD or some other 3rd party hardware and disk analysis utility. If it passes, decide if it's worth taking to a Genius Bar to have them look it over and maybe run some standalone diagnostics. If you can find said diagnostics "from pirated sources", download those, run them, and see what they tell you. This may be a 'gut for parts' situation. Sounds like a logic board dying.
I wouldn't have thought it was a logic board problem *if* the MacBook still works properly when used "normally" (i.e. boot, use, Shutdown). I would simply turn off the Sleep options and continue to use it ... remembering to Shutdown if not planning to use it for a while. My Beige PowerMac G3 has never like Sleep and refuses to wake up again, which is one of the lesser reasons why I don't bother using Sleep and always Shutdown. (In fact, under Mac OS X 10.2, the computer will automatically go to Sleep after a random few hours and the only way to get it going again is to force a reboot - this never happened under Mac OS X 10.1 nor Mac OS 9.)
You can pirate it directly from Apple. Using Apple Hardware Test http://support.apple.com/kb/ht1509 Apple Hardware Test Images [older computers, includes instructions for their use] http://www.info.apple.com/support/aht.html Billy Y..
Apple Hardware Test Images [older computers, Opps, here's the correct URL - http://rivenbyfive.blogspot.com/2012/01/download-and-run-apple-hardware-test.html Billy Y..