Hi, my friend here has a Toshiba A300 laptop with: Core 2 duo T5800 processor 3GB DDR2 RAM HD 3470 320GB HDD and recently we found out that it has become very slow. On idle CPU is sometimes about 80% loaded and if we try to load it and play some games, it restarts. Then I checked Themperatures and it shows about 70°c idle and 85°c after being loaded. And it seems that Temperature sensor stucks at about 85°c, also it sometimes shows -40°c. CPU-Z shows default (2Ghz) at first, but if we stress CPU, then as themperature rises it lowers frequency accordingly. It's 2Ghz, then 700 Mhz, then 400 Mhz, an if it reaches about 83°c, then it runs on 199 Mhz. So what should I do, what's wrong with it? Windows Power plan is set to high performance and everything is set to max frequency. Before it started, we made trip by plane, maybe they played football with this laptop and CPU cooler fell off or something similar? We can open it and try to check thermal compound, but first I want to hear what do you think, thanks in advance!