I have this PC windowsXP 3000mhz P4 512ram.. and the system spikes CPU and Memory every so often on a regular basis causing even the smallest of tasks not to function such as typing.. movies and games will even freeze up solid for a few seconds.. I've been trying to figure this out but it seems a mystery.. It happened b4 and I formatted and it went away but after a month its back again.. could it perhaps be faultly hardware?