Macbook turns off after chime

[mixcas]

this morning my computerd died because of overheating. When i treid to turn it on again it turned off after the startup chime and after showing the apple logo.
I got it to boot on safe mode holding pressed Shift during the startup. Then i shuted it down properly and tried to turn it on again normally without sucess. I tried to use safe mode again and failed.
The used Verbose Mode and it turned off just after loading something about the bluetooth. I couldn see it well cuz it was too fast.

I'm gonna try to boot from the disks tomorrow cuz i left the cd's at someone else's house. In the mean time…

Is there something else i could do to solve this problem?
Or any idea whats causing it?

Thanx

 

[n8236]

My $ is on heat. The machine is built to turn itself off to prevent overheating. I would open up the panel (so the fans are exposed) and turn the machine on. Watch the fans, if they are not running, there's your issue.

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I would also check the heat pipes to see if it's being pinched somewhere.

Check the vents as well.

 

[mixcas]

Hey thanks for this info.

Is there another way to check if that's certainly the cause without having to open it?

Maybe doing something from the single user mode(?)

 

[StockDC2]

If the problem still persists after leaving the computer off for a good 5-10 minutes, it is NOT a heat issue.

It could be anything but I would probably point my finger at the memory and/or logic board.

 

[mixcas]

Well, it happened to be a problem with my HD and some permissions.

I got it fixed using DiskWarrior.

Thanx for all your help