MSi laptop crashes without BSOD, please advise

Hi guys, my MSi GT780 DXR laptop keeps crashing (turning itself totally off, without even showing BSOD) Often this happens when I am playing Warcraft, but I think it also once happened when I was simply browsing the net. It restarts itself within a few seconds and no error messages are displayed. It can crash several times a day, or let me play Warcraft for hours without crashing - very unpredictable

I have tried to find dump files to paste here, but I can't find any (I can't even find the folder they are supposed to be in). I read the info about what to do before posting however, and here is the file with information about my computer attached.

Any advice would be very much appreciated - many thanks.

Please see further information below about:
a) my laptop specs
b) start up and recovery settings
c) Performance options settings (originally the paging file was about 8000 MB so after reading advice on forums I made it bigger to 13000 MB)
d) The information I received when I ran DumpConfigurator.hda. One thing I am not sure about is that it says I do not have admin permissions, I clicked to Elevate this HTA but it only seems to elevate me for that login, and I'm afraid if I change it permanently I am putting my laptop at risk - is that right?).

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b)


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d)

Just an update for the benefit of anyone who has the same problem in the future, we noticed that very occasionally when the laptop crashed the screen pixelated for a second before the crash. We replaced the graphics card with one we bought from ebay (exactly the same spec) for about £100 and haven't had a crash since. Therefore it seems the graphics card was broken. Try this if you have the same problem as I did.