Recently while using my laptop (Dell XPZ15z) all of a sudden the CPU usage is spiking to 80-100% then will drop in say 5-7 sec. I am not running any application or process that requires such CPU usage.
I am doing a lot of online gaming, while playing the same thing happens but the additional things happening are that the ping becomes 1500+ all of a sudden from 90-130 and then its showing network connection problem. Then I regain connection again in 5-7 sec. But now i noticed its the same time while my CPU usage is going above 80%.
Another incident that occurred is that while I was watching an YouTube video, all of sudden the video began to hang even though it was buffered earlier. Then the video stopped further playing and I saw that the CPU usage was way beyond 80 nearly 100%.
I increased the virtual page memory to almost 10 GB in all the drives. But it seems to have no effect as the problem continues. I have up to date anti-virus (Avast) and I scanned the whole system but no virus also have been found.
My system configuration is as follows:
- Intel Core i7-2640M 2.80GHz
- 8Gb DDR2(4*2)
- 750Gb HDD
- Nvidia 525M graphics card