I don't really remember when the laptop first started to experienced this problem but the problem is when I open my laptop, I don't know how or why, it is like the laptop is starting to make a dozens of hard calculations. once I just opened it waited for minutes, without doing something, and it happened again, the laptop is getting warmer and warmer, and fans are starting to make it cooler. the only tip I can give you guys is I was using BOINC once. but than I moved it to another computer and uninstalled boinc from my laptop. so maybe I could not uninstall it properly and it is still running somewhere in core or something... thanks advance.
I have: Intel Core 2 Duo CPU T5450 1.66Ghz x 2*** Intel 965GM x86 MMX SSE2*** 32 bit*** Ubuntu 14.04* here is a random screenshot from system monitor: