is there a vent in the back where you can feel air coming out? is it warm, hot? is the exhaust air flow weak or firm? warm and firm air flow is ideal whereas hot and weak exhaust air is a sign of internal airflow obstruction, probably an obstructed cpu heatsink. laptops usually have the cpu situated in the back, right inside the exhaust vent.
don't be alarmed, it is common and can be corrected.
you can download speccy from the download section here, it is an internal system auditor that reveals many details about your PC , especially temperatures. if your cpu temperature is anywhere over 60 degrees celsius, it is a sign of trouble.
also, if you pull up your task manager, it can tell you alot about how your cpu is getting taxed and the processes that is using resources.
Edited by synergy513, 08 March 2015 - 03:21 AM.