I have been experiencing an issue with my Dell Vostro 1510 Laptop for quite some time now. Whenever I play certain games, 3 maybe 5 minutes go by and my laptop starts to lag heavily. It does not have to be an online game, but this is what it looks like- very heavy lag and I cannot continue to play. This lasts for about 8-10 seconds and stops for about 30 seconds, then repeats again and again. Along with this lag, I get a strange scratchy sound from my speakers like the original background/whatever music from the game, except very distorted and scratchy. Like I said, it will do this with certain games (such as Stronghold Legends or GunZ Online) while other games it does not effect (Counter-Strike or Grand Theft Auto).
My computer is CLEAN of viruses, spyware, malware, etc. All of my DirectX, java, or anything else is up-to-date. I got this laptop from my college about 2 years ago, and it has on it:
OS: Microsoft Windows Vista Home Basic SP1
CPU/Ram: Intel Core2 Duo CPU 2.001 GHz / 3069 MB
Video Card: NVIDIA GeForce 8400M GS
Sound Card: Realtek High Definition Audio
I'm not sure what is causing this, and why this is happening on certain games and not on others. I hope there is someone out there who can help point me in the right direction for getting this resolved. These "lags" are very annoying and I cannot play some of my favorite games with this.. Thanks for the help in advance!