Sorry for reopening this thread and for "invading" it, but it seems that i have exactly the same problem.
I bought an Acer Aspire V3-571G-73618G75Maii laptop 2 weeks ago with this configuration:
- Processor: Intel Ivy Core i7 3610QM, 2.3 GHz (3.3 Turbo Mode);
- GPU: Nvidia GT 640M;
- RAM: 2xNanya NT4GC64B8HG0NS-CG 4 GB @1333 MHz;
- HDD: Hitachi HTS547575A9E384 750 GB;
- Windows 7 Ultimate x64 SP1.
From what i understood by analyzing the minidumps, the problem in caused by nvlddmkm.sys (although I'm not sure that i understood correctly). I already tried the GPU driver
from the laptop's manufacturer, and 2 of the beta ones from the nvidia site (304.79 and 306.02). I also tried reinstalling the windows, other versions of drivers
for wireless, audio and integrated video card (which by the way are the only other drivers installed, except the nvidia one), testing the RAM with Memtest, stressing the GT 640M with Furmark and all resulted normal. Nothing seems to be damaged phisically.
I have also noticed that one of the 8 CPU's threads (in my case the last one) is 100% used a few minutes before the crash, and that time i can't open any program, but i can still use the ones already opened. Another thing I have noticed is that the BSOD appears only when the laptop is idle or a short time after being idle when I restart using it.
Any ideas of what can i do next?