I bought an ACER Aspire laptop new from Newegg.com 2-3 months ago. In the time that I've owned it, it's had 5-6 full system crashes--blue screen or just sudden shutdown--that are unpredictable and unexplained (except for the info on the blue screens, which I do not have the knowledge to decipher).
The Newegg page for the laptop, with its exact specifications, is here: ( Newegg.com - Acer Aspire AS5742G-6600 Notebook Intel Core i5 480M(2.66GHz) 15.6" 4GB Memory 500GB HDD 5400rpm DVD Super Multi NVIDIA GeForce GT 540M w/ NVIDIA Optimus
). But here are the quick specs in case those are all you need.
Windows 7 64-bit
Intel Core i5-480M
nVidia GeForce GT 540M
4 GB DDR3 RAM
500 GB Hard Disk
6-cell Li-ion battery
The problem has manifested itself in a number of ways. One time, I had been watching a DVD movie for maybe 15-20 minutes when suddenly the image stuttered and then froze, while the audio turned into a long, monotonous buzz; soon the computer rebooted on its own.
Another time, I was just browsing the web and using Microsoft Word, and the system came to an absolute halt (would not accept input of any kind) before soon rebooting.
A third time, just today, I had been playing Half-Life 2 for about 20 minutes when the game suddenly became choppy. The moment the slowdown started, I had been moving some objects around in-game (so it was doing physics calculations), but after I stopped doing this the game only slowed down more. I restarted the game and loaded the same save file I had just been using, but the same choppiness came back, and got progressively worse until the computer simply turned off. This was not an automatic reboot like before; this time I had to turn it back on myself.
It's hard to give you any more info about the crashes themselves because they are so unpredictable and difficult to record (I can't exactly PrtScrn a blue screen).
Where do I go from here to try and remedy this problem? I've already run a full system virus scan (MalWareBytes Anti-Malware) and run CHKDSK after about the 5th crash since purchase. Neither one turned up anything suspicious. I come here to ask this because I figure I should run some sort of further diagnostic, but there are so many advertisements online for "Fixing PC Errors" and I don't know which one to trust.