When You Touch Your CPU unit, It is Very Hot. The Most Probable Cause Could be-
CPU heating issue is caused if PC has a problem with the heat sink of the processor.
Processor of the computer is the highly functional component, it require more electric power and release heat. To cool it down every computer motherboard has heat-sink installed just above the processor.
This heat sink touches the processor and sinks heat from processor. A fan is also installed on motherboard that used to cool processor with the help of air blow.
If processor of your laptop or computer is getting hot then it’s time to change heat-sink.