I moved house about 2 months ago, before then I hadn't gotten much gaming in for a while, but when I did I remember it being fine. Now ive moved out ive got more time and ive been trying to get some more gaming in. Only now all of my games crash without question. After anywhere from 5 to 20 mins of playing my games quit to desktop, no error just a quick quit. I have 768 mb ddr ram, I used to have 512 not so long ago, I added another stick which wasnt the same brand (was the same speed), ive had a slight upgrade from a AMD athlon 1800 to a amd athlon 2000, added a dvd drive, and replaced the PSU, these happend in the last few months, but I never noticed any problems directly after installing. Sometimes when I boot up, I get a message along the lines of "Windows has recovered from a serious issue....". These are the only things I can think of that might be a factor. Oh, just remembered another, I remember having to install the latest version of Direct X with a demo I got a while ago, and again with another game, both times I remember having problems installing. The games would install normally, then direct x installion would open and it would take about 40 minutes to install, once or twice I had to restart the installation after an error. But I remember playing the games after that and not having this problem.
Im not sure if anyone can help me, or even has the slightest clue whats wrong, but I would greatly appreciate any advice. Thanks in advance.
Examples of the games im trying to run:
Half Life 2
Counter Strike Source
GTA San Andreas
Brothers in Arms