Laptop shuts down suddenly

I was recently having issues with the LCD backlight on my Dell XPS M1530 laptop. So I took it to the tech guy who fixed the backlight issue. But, now I get sudden shut downs while I'm working on my laptop. The screen goes white for a second before it shuts off by itself. Could it be an issue with wiring inside which the tech guy messed up? Or maybe the heat? because I notice the shut down when mostly my laptop is resting on a wooden table for about half and hour. Any advise?
 
Does your laptop have the Nvidia GeForce 8600M GT installed? If so your problems are very likely a result of the nVidia Defect (I have recently had a refund on a laptop I boughgt in 2007 because of this), have a look here http://www.nvidiadefect.com/ for info, it's a very helpful website.
 
Does your laptop have the Nvidia GeForce 8600M GT installed? If so your problems are very likely a result of the nVidia Defect (I have recently had a refund on a laptop I boughgt in 2007 because of this), have a look here for info, it's a very helpful website.

Yes I certainly do have this card. Any solutions for this problems then? As I am way out of country of purchase right now and it's almost impossible to claim a refund of it :(
 
Unfortunately there is no solution as even a repair would prove faulty as that nVidia chipset was inherently defective (manufactured faulty). Try looking through the website I linked to, see if anybody else has had the same issues with your model of laptop. You can also check to see if Dell issued a recall of that model. The guy who runs the website is very helpful too so if you post your issue on there he should be able to give you further advice. I had a laptop with the Geforce 8600M GS card in it and he helped me a lot with getting a refund.

Which retailer did you buy from and do you know anyone that lives in the country of purchase?
 
is there a way if I can just disable the graphic card or get it removed? will that be helpful? I don't understand if this model was built defective then howcome it lasted for 3-4 years without a problem?
 
I doubt it, you could have the graphics card replaced but this would probably cost a fair bit and it would have to be replaced with the same model so that will be faulty too. The fault seemed to take 2-3 years to really start to cause issues, mine lasted just over 3 years before dying completely but there's no hard and fast rule to say when it will give up! The main characteristics are extreme temperatures, BSODs and the screen going blank, Goodle nvidia defect and you'll find loads of info. Here's just a few that come up:

http://www.nvidiadefect.com/dell-xps-m1530-no-screen-t1395.html
http://www.nvidiadefect.com/dell-xps-m1530-diagnosed-as-defective-t1774.html
http://www.nvidiadefect.com/dell-xps-m1530-nvidia-geforce-8400m-gs-t1786.html
http://forum.notebookreview.com/dell-xps-studio-xps/281644-nvidia-graphics-card-defect.html
http://slickdeals.net/forums/showthread.php?sduid=0&t=2949439
http://ubuntuforums.org/showthread.php?t=871571
 
What I have noticed is that just before the laptop is about to shut down, a white screen comes up and the mouse pad stops responding for a second. Sorry didn't reply to your previous question, I bought it direct through Dell's website from UK.
 
Back