No1. Are you running the CPU overclocked?
The problem started suddenly,without tempered Pc with in any way...Occasionally i wipe the PC with a vacuum cleaner2. Have you cleaned the system out? ie. opened the cover and used some compressed air to clean out the dust bunnies...
Yes,3. Are you possibly using an SSD drive? (i highly doubt but still worth asking)
CAN I disable this feature?Because it appears your running an older system, i'm thinking it might be a heating issue because intel processors have a built-in feature to slow down in an attempt to keep from destroying themselves when the heat gets too high...
I tryed 3 difference video cards without differecens, i changed themal paste some month ago, the temperatures are ok for meAJ[/quotemsg]I would re-seat the cpu, clean and add some new thermal paste...
Another thing i noticed your running a Q6600 with a 520GT, correct me if i'm wrong, but it's possible you may be running into a bottleneck running a newer video card and an older processor...