MSI Gx633 Hanging while playing game.

Question

Good Day,
I would like to ask whether there are fellow gx633 users who are experiencing the same thing and what steps have you taken?
i bought this gx633 last October and had problem since then. The whole laptop would hang after playing the game for some time with the timing before it hangs varying between 15minutes to 4hours.
incidentally, the laptop seems to run at 100% CPU once the game is initiated with the process taking up the cpu% alternating randomly.
i have run a scan using Malwarebyte antivirus and it showed no infected file. i have also tried updating the gfx driver, getting a strong fan/ laptop cooler for the laptop and all does not seem to work.
i have pretty much given up on sending the laptop for checking because i had it sent at least 5 times and they always told me that there are no issues discovered. at the 5th time, they decided to replace the gx633 with another gx633 and this is the one i am using now with the same aforementioned problems.
the worst thing is i cant seem to see the problem because i use speedfan sometimes to see the temperature and it hardly goes beyond 80 degrees. usually hovers around 76. and it sometimes hang right after the temperature check.
other observations include that of clicking or buzzing sound on the speakers when moving the mouse or cursor across the page and that the laptop cooler would start running once i on the AC power before even booting up the com.
i am writing this as a last resort as i may soon discard this laptop which seems to be the most waste of money that i had ever spent. (after getting this laptop which was a replacement for the previous one and getting the same problem, i called up local msi and they told me that they would forward the matter to hq and get back to me when there is a resolution. - this was back in december last year. perhaps you see why i am already on the verge of giving up)
on  a side note, i was playing cabal online which is hardly a demanding game and i doubt the gx633 can do justice to the title "gaming laptop" if it can not even play this game.
if you have any input, kindly advise me on the matter. thank you.

Answer 1

Hi. Thank you for youre reply.
I was running on Windows Vista home premium 32bit and i updated all the drivers given in the msi website.
I did not use the turbo mode at all during the crashes.
A little update, i sent it back to msi to have a look and they said that it was probably due to a faulty mainboard so they replaced it.
they also suggested to reinstal the OS so i decided to purchase a Window7 Home premium and did a custom instalation since they said that the faulty mainboard could have corrupted the OS.
the result is that after instaling the Windows7 Home Premium 32bits and updating all the drivers for Window7 from the msi website, i ran the game again and this time it hangs in under one hour. ( not sure of exact timing because i left the game running and went to do some work on my other laptop)
from the other threads it seems to point towards the gpu but when i sent it in they said that they did a stress test so i am not sure now what i should do. i am thinking of sending it in tomorrow to have them run a final check but i really wonder what caused this because it seems that the gx630 623 and even 7 series are running into this issue of black screen during gaming.
thank you for you kind attention.