MBP 2006, Crash during login, black screen, fans running high speed.

Hello.
I'm having problem with my MacBook Pro 2006 model. OSX 10.6.8.
When I boot into OSX and log in then the computer crashes with black screen and fan start running on high speed. It usually happends when I'm typing my password but sometimes I can log in but then it crashes usually soon.
I can boot into Safe mode and Single user mode and everything is normal there.
If I boot from OSX install CD same happens. Its crashes. Same with from Install USB stick and from Disk warrior disk. Safemode and sigleuser mode is no problem.
It started one year ago when I puted the computer to sleep and woke it up. Then it crashed. So I just stopped puting it to sleep. Then after few months it started doing this during login but after one or two restarts then it worked. And now she does it every time.
Nothing in logs that gets my attention. I've tryed resetting SMC and everything else I can reset.
Anyone had this problem ?
Best Regards.
Sverrir

I've been having this same frustrating problem, with the same machine (A1150, 1.83Ghz) although mine does it with both the AC and the battery. I was hoping it was the battery and just replaced it (the old one was almost dead), to no avail.
I thought it was working okay in Windows under Bootcamp until one day it decided to show off the same black-out/wild spinning fans symptoms. Grrr.
I've since run the following repeatedly, all of which have come up with nothing: AHT, Memtest, Hardware Monitor, iStat. I've been furiously monitoring the logs and not seeing anything jump out. I also cleaned the caches with Leopard Cache Cleaner and OnyX, and did an archive & install of the OS a couple of times. Lastly, I created a new user to see if there were problems with my start-up. Problems persisted.
Right now the only time I can keep it running is if I'm in Safe Mode. Not helpful, particularly WRT making a backup (i.e., I won't be able to use Firewire ).
Any more ideas/advice on this would be very appreciated. I'm ready to hurl my puter out the window.
Message was edited by: lynnbee
Message was edited by: lynnbee
Message was edited by: lynnbee

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