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Notebook shuts down suddenly

My notebook (P4 2,4 Ghz on SiS 645DX,512 DDRAM,OS:XP SP1a) shuts down suddenly (It happened just one month ago and then again and again in random situations).I disabled the options which lets windows to shut down if some hardware errors arise.
I noticed that if i plug the power cable and let the notebook run,in battery mode,there are no problems.However,when the power cable is plugged and i play a game or a movie,after half an hour,the notebook shuts down directly (There is no virus/adware on my hdd).Do you have any ideas?
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chrisr34000
Asked:
chrisr34000
1 Solution
 
sunray_2003Commented:
Hi chrisr34000,
> I disabled the options which lets windows to shut down if some hardware
> errors arise.

There is a function preventing to restart the machine if there is any error. Are you talking about this ?
Does it not show you any blue screen when it try to restart during these shutdown occasions.

Have you tried changing the power cable and checked ?

Make sure you donot have any screensaver set while watching a movie or automatic power setting options .
For that check , right-click (desktop) , properties --> screen saver --> power
and disable all where is says what to do when the computer is plugged in ..
Check what happens

Also if you plug the power on and do any work other than watching movie or playing game , does it shut down.

Thanks
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chrisr34000Author Commented:
>There is a function preventing to restart the machine if there is any error. Are you >talking about this ?

I mean System Properties/Advanced/Startup and Recovery Settings/System Failure:Automatically restart

>Does it not show you any blue screen when it try to restart during these shutdown occasions?

No.It shuts down directly.

>Have you tried changing the power cable and checked ?
Not yet

>Make sure you donot have any screensaver set while watching a movie or automatic power setting options .

No screensaver is set.Turning hdd off is set on battery and plugged in level.
The powerscheme is Always On,but i dont think,this would be a problem.

>Also if you plug the power on and do any work other than watching movie or playing game , does it shut down

Yes,if i do something which is very intensive for the hard disk.



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ridCommented:
Sounds like a heat issue. Likely a processor protection thing. See if there's an option to set a lower performance level even when running on AC and see if problem goes away. If it does, you may have to examine your processor fan and heatsink/thermal paste situation.
/RID
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LeftofCoolCommented:
I'm having the problem with my laptop, and I've convinced the company that its a bad battery and I'm still under warranty. Your situation is nearly identical to mine, so I hope you're under warranty!
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chrisr34000Author Commented:
Yes,i am under warranty and i do believe too that the problem is either the AC Cable or the charger...
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chrisr34000Author Commented:
The solution I found is cleaning the fan with a vacuum cleaner.After I did this, I had no problems anymore.
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ridCommented:
I did suggest checking on the various components of the cooling system, perhaps in a roundabout way. If you feel my comment was unrelated to your problem, you should ask for a refund.
/RID
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ridCommented:
Hmm... I dunno... I guess I'll have to remember to suggest vaccuuming the fan instead of just "checking" it....

/RID
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ridCommented:
Thanks. I hope I didn't go beyond the pale here...
/RID
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