Randomly turns itself off, and won't restart.

OK, I know the shutdown issue can be fixed with a firmware update, but I think I might have another issue from what I have heard described in these posts.
I have had my macbook since July, so it's 5 months old and I’ve been seeing the following issues for the last 2-3 months.
I have been seeing a lot of random shutdowns (maybe every three times I sit down to use my macbook) with no error messages, fully charged with the AC adaptor plugged in. After it shuts down and I try to turn it on, it will stay on from anywhere from 10 seconds to less than one second before turning itself back off. Is this failure to power back up a different issue from the random shutdowns? They seem to correspond, because I have never had trouble powering up when properly shutdown and dormant.
I found a workaround to get booted when it is failing to restart by simply holding the power button for 5-10 seconds until the macbook beeps loudly, then I let go of the power button and it powers up ok, and I don’t see the random shutdown issue for a while.
I have not yet applied the firmware update; will this fix both of my issues? I'm worried that if the random shutdowns stop, that there might still be a hardware issue (not powering up) on my macbook that won't surface until I am out of warranty.
I also heard that a friend of a friend had this same problem and was given a replacement macbook, which makes me think I have a more severe problem.
Any ideas?
Mac OS X (10.4.7) macbook ultimate

Well... the issue is they may not have been seated correctly to start with... not so much that they would have worked loose. Actually, if you've ever tried to put RAM into a MacBook, you'll see that they're certainly not loose. Your main problem certainly seems like the random shutdown issue. Your start up issue is related to the same thing. Your MacBook gets a funky signal from a temperature sensor and shuts down. It doesn't want to come back on right away because it thinks the temperature issue has not been resolved. When you hold the power button in and get the beep, you are locking your MacBook at a slower speed which has seemed to work for some people temporarily. The firmware update should resolve your problem.
NOTE: If you know your machine will run for a few minutes under certain circumstances, make sure it's under those circumstances that you update the firmware. You don't want to have a random shutdown during a firmware update.

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This question was solved.
View Solution.

Hello untech,
I see that it has been awhile since you have posted with us on the HP Forums. Please let me take a moment to say "Welcome Back".
I see that you are having an issue with the printer shutting it self off and not powering back on.
By chance do you have the printer power cable connected to a power bar/strip? If so, please try connecting the printers power cable directly to a wall outlet. Here is a document that explains the Issues when Connected to an Uninterruptible Power Supply/Power Strip/Surge Protector.
The printer in the document is a LaserJet printer but this document is meant for HP products in general and only uses the LaserJet as an example.
I am also going to include a document for when The HP Printer Won't Turn On or Respond When the Power Button is Pressed.
If by chance the issue is not resolved after doing the steps outlined, I would then suggest calling HP's Technical Support to see about further options for you. If you are calling within North America, the number is 1-800-474-6836 and for all other regions, click here: click here.
Please feel free to write me back if you have any other questions.
I hope you have a great Monday.
Cheers,
Click the “Kudos Thumbs Up" at the bottom of this post to say “Thanks” for helping!
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
W a t e r b o y 71
I work on behalf of HP

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Hey Jswalker1969,
Thanks for the question. If your iPhone is not powering on, see the following troubleshooting steps:
Will not turn on, will not turn on unless connected to power, or unexpected power off
1. Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
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Learn about LCIs and corrosion.
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4. After at least 30 minutes, if:
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               - The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
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6. Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
7. If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.
My issue is still not resolved. What do I do next?
Contact Apple Support.
For additional information, see this article:
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http://support.apple.com/kb/TS2802
Thanks,
Matt M.

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