Randomly Turns Off

I talked to a repair technician today and he says that even if you get your logic board replaced, it's the same kind of logic board that is already in all Macbooks. Apple hasn't released a newer logic board since the release.

It's weird that some people get the graphical errors and some don't. I just have the shutdown issue. I SO much regret not keeping my old Powerbook 12".

-82 is what I get after initiating a normal shutdown too.

***The "Previous Shutdown" -82 appears to be the "out of spec warning" shut down. ***

Can you show us specifically where you found documentation of this?

I'm having the same problem. Like others have mentioned, it only happens when the CPU temp reaches about 173-174 degrees.

I called Apple Care, and described my problem in detail, making sure to mention the it only happened under heavy CPU load at a certain temp. The rep immediately said "Your CPU is running too hot. It has to be some sort of automatic shutoff to prevent damage." I was surprised that he acknowledged the problem. I don't have the time to send the unit in for repair, but if it fixes the issue it's the only choice I have. My work depends on being able to run at full CPU utilization...

Having such a major problem on a brand new, currently shipping model, is simply unacceptable. Apple, the backlash is just beginning.

I´m having the same problem, but the shutdowns generally happen shortly after I startup my computer, so I guess that in my case it is not related to temp.

My computer is 4H625...

This looks like a flawed digital sensor. Either
below 50C or higher than 65C, but some have shutoff
in between which may lead to other issues or flaws
within the design.

I have build 4H620 and have never had a shutdown yet with mine. I can stress both processors running them 100% using Terminal (yes > /dev/null) without a problem. Here are current readings after running 10 minutes. I've had cores up to 97C.



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2.0 MacBook • 100GB HD • 2GB RAM Mac OS X (10.4.7) 60G Photo iPod • AppleCare

yeah mine can happen when the ecu is cold or hot, or just turned on. sometimes does not boot up at all. weird. But the thing is my 14inch ibook did this to about 10 times, then i got the new update and it never happened again. weird huh

I don't have Flip4Mac on my machine, but it went screwy anyway... if that helps!

Yeah, my prediction is that this is time-related. There is a problem with ALL the motherboards that makes them sensitive to one or more conditions. When these operating conditions present themselves over several weeks, the board/sensor/whatever breaks and the shutdowns begin. At first there were mostly reports of early weeks 18-20, then the 21s showed up in force with a couple of 22s, then a few with 23s said they also had the problem, and now at least one 25. My replacement is a week 23, I will let this thread know if it starts going bad.

But I believe in the coming weeks we will hear similar reports from weeks 23-26. I hope not, but that's what I think is going to happen. I'm just crossing my fingers and hoping that my week 23 doesn't die, since we're moving to Bangladesh and I'll have a **** of a time getting any Apple tech support there. 😟

Same things is happening to me.

It's really *****, when it happens doing serious work or installing something. It's like going back to old classic or SE era when "System Error Occor!" massage has been appered. Any electric machine without having basic operation , "turn on", "turn off" is like serious junk. Apple must fully take care of this issue. I've been using mac more than 20 years, I might start dislike of Apple.

My (white MacBook) serial number is 4H6213M **


It's interesting to see these problems come on in waves. I don't know what 'week' my MacBook is though - I got it at the end of May....

If that's your serial, then you have a week 21 MacBook. The two numbers after the initial 4H6 are the production week numbers.

Thanks! I wondered how everyone seemed to know the production week of their MacBooks....

I've found something..

When it shuts down, I keep the power button pressed until a annoying beep occurs, after then I hear the mac booting sound, and after that the machine doesn't shutdown anymore..

I don't really know what that sounds mean, but I think I'm resetting something that was the problem.

I've to do this like every time I wake the machine, cause it shuts down very often. But after doing it, no more problems (until I close the lid and the loop starts again)..

Maybe someone can try if it works too so maybe we can find a clue.

(Hey, those who had the logic board replaced, can you confirm the problem is now solved? So we don't have to keep investigating it! Thanks)

Luar Roji

http://movies.apple.com/movies/us/apple/getamacads1/restarting480x376.mov

Well, I guess now we know how it is.

Except, my new MacBook is actually even less stable than XP.

My experience with Apple hardware has never been exactly stellar, but at least with the last two Apple laptops I bought, it took a year or two before they had problems.