Forigve me if I'm in the wrong section. I'm sure someone here knows enough about computer to enlighten me.
It's about gaming, so here's the problem:
The FPS in every game I play on my 1 year-old laptop has a weird, continuous fluctuation starting from about 60 seconds into the game. When it goes weird, it drops from 40-something (depends on game) to 15-20 range for about 4 seconds or so, and then it rises back to normal 40+ for about 2 sec, and then it all repeats again, dropping to 15-20. It all happens even when you look at just one thing and never moves.
And it goes down and up and down, from smooth to laggy to smooth, again and again.
Fraps shows me the FPS change. And then I opened EVGA precision which helped monitor my GPU usage. The usage chart shows me a wave-like pattern (as shown in attachment).
But here's the funny thing. I play whatever game, tap out for some time, and go back in, there is no fluctuation anymore
! Until, again, about 30-60 seconds later, fluctuation is all over again.
So is it about temperature? Not exactly. As on-screen display showed, in one game the fluctuation hangs at around 66-68C (minor temp drop coincide with FPS drop), but in another game it hangs at around 71-73C, and no fluctuation before that range.
Then another funny thing. In one game Skyrim, the fluctuation is there whenever I'm in the world cell, but when I go into a smaller cell (smaller area load) the fluctuation is gone. I checked carefully, the temperatures are about the same.
My laptop has a medium to low end GPU Geforce 520M (1GB VRAM I believe), with 6GB RAM, an i3 CPU.
I played graphics-intensive games like GTA4, Skyrim, Mass Effect 3, and even less intensive ones like NBA2k, but the same problem persists in every one of them.
I checked periodically and noticed that games never really exceeded 1.5GB system mem, and I theoretically have 6.
I admit I'm not an expert here. But if anyone knows what this fluctuation is called, or know the root of the problem, please tell me. Thanks. Really thanks. Anything at all.