and i have stopped using the computer for a while as i took the heatsink of the cpu just to check while my thermal paste is delivered, there is hardly any paste on it at all it is inconsistant and there seems to be dust in it. hope the new thermal paste fixes the problem
It sounds like you found the problem. You must have had some pretty good air pressure to blast dust between the cooler and CPU. Or maybe the cooler wasn't attached securely. Either way, the problem should be solved when you clean the old thermal paste off and apply new. And be sure the cooler is firmly and tightly against the CPU's heat spreader. Btw, which paste did you order?