With only one tab of google chrome and task manager running (plus another 70 processes) running, I am hovering around 40% physical memory, and 4% CPU usage. I have 4 gb's of ram, and to me this seems odd that I am using so much, while the computer isn't doing much. I play league of legends and when i have that open (in-game), my physical memory shoots up to about 75-80% and that seems a bit high.