If you are looking for a software solution to assist when playing PC Games try Game Booster which as the website describes "Designed to help optimize your PC for smoother, more responsive game
play in the latest PC games with the touch of a button, Game Booster
helps achieve the performance edge previously only available to highly
technical enthusiasts. It works by temporarily shutting down background
processes, cleaning RAM, and intensifying processor performance. That
means you can keep all the features of Microsoft® Windows Vista® and
XP® ready for when you need them, but turn them off when you are ready
to get down to serious business – gaming. Game Booster makes it simpler
to enjoy the latest games and take your experience to a new level. "
Best of all it's FREE