CPU temps are normal. My GPU likes to hang out at 75c at idle sometimes >.>. Most often it's mid 40c idle. I can't check my temps while playing a game because my games don't allow alt+tabbing. There's absolutely nothing wrong with the laptop, though, aside from the way it acts during 3D games.
With MSI Afterburner I see my temps I see my cards usage and the clocking and FPS. I don't need to alt+tab It runs up in my left corner while gaming.
If it isn't temps then I would say something else is going out and since I not that good with laptops. I was hoping it would have been an easy problem to fix. maybe someone else could help this person.
If you don't have MSI Afterburner here is a link to it. If no one helps repost the question. If all eles fails take it into a shop. I am sorry I wasn't able to help you but I do wish you the best of good luck and I hope you get this fixed.
Took more than a year of scouring tech blogs to fix my wife's and my gateway fx p-7805u black screen of death and sound looping problem in games we'd previously had no problems with. Had tried everything incl: all driver updates, temp monitors, thorough system cleanings, thermal paste changes, heat sink changes, bios alterations, "gutting/rebuilding" my laptop, et. al ad nauseum. Many fellow enthusiast did try to assist, but to no avail. A lot of individuals with this system/nvidia card are frustrated beyond comprehension.