CPU usage randomly and rapidly tops off
I'm not a knowledge box on the subject. But I am trying to confirm whether or not I am having hardware issues or if there is something wrong with my system configuration.
Both in windows and in ubuntu, when running basic programs like firefox, chrome, or bittorrent the CPU usage shoots up to 100% for a period of between 1 and 4 minutes. During this time, even basic computing is impossible. Text input takes several seconds, and the mouse is clumsy and impossible to control. Programs are unresponsive, videos and music glitch out. Then after a few moments, everything goes back to normal.
Is there a way to test the "integrity" of my CPU? Or if it messed up is there a way to fix it without replacing it?
HP Pavilion dv9740us with dual boot SATA XP and Ubuntu 10.10. 3G DDR2 RAM, Intel Core 2 Duo T5450 / 1.67 GHz, NVIDIA GeForce 8600M GS @ 512MB