Powerbook G4 12" intermittent power up problems

Yesterday, the 12" Powerbook G4 (2.5 years old) went to sleep and then wouldn't wake up.
So I restarted it. It would attempt to start, make some noises, and then shut down again. No chime. Sometimes, it would chime and start correctly. Once started, it never seems to have any problem keeping running.
I thought maybe the battery is the problem because it is being recalled. I removed the battery, plugged in the power adapter. Same thing.
Do any of you have experience with this issue? Is it a known issue (like wear to some internal component causing intermittent shorts), or is it a PSU/inverter board problem that requires component replacement?
Thanks for any insight.
PPC7410

Hi PPC7410,
Two things you can try:
1. Reset the Power Management Unit
2. Insert the original PowerBook Restore DVD and hold down the option key while pressing the power button till you see a gray screen with a few harddrive icons. Select "Hardware Test" and follow the instructions to perform a full system check.
Good luck!

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Hi pokermanpat,
Thank you for visiting Sony Community!
We really appreciate your time posting the issue that you had and posting your own resolution. I'm sure your suggestion really helps others with the same issue. And reseating the RAM is actually part of our troubleshooting as well. You did a great job.
However, if you will experience the same issue or you need further assistance especially for hardware issue, we kindly recommend visiting our Sony Global Web site for information on contacting the Sony Support Center in your region at http://www.sony.net/SonyInfo/Support/.
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My Canon 5D Mark iii (2 years old) has an intermittent power problem, as described below. It may simply be a question of cleaning the terminals that the battery connects to. I haven’t tried since I can’t reach them at the bottom of the battery compartment.
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Powerbook G4 12" intermittent power up problems

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