|"How i know is which part of my hardware |
Did it say "your PC is overheating" or "your CPU is overheating"? My guess is "CPU". Some people refer to the case & everything inside it as the "CPU" but that is incorrect. A CPU is a socketed chip that attaches to the motherboard.
CPU & CPU socket
Unplug the power cord, open the case & blow out any dust from inside...do NOT use a vacuum. Make sure all the heatsink/fans are dust free & all the fans spin freely...especially the fan on the CPU.
This is what a CPU's heatsink/fan looks like:
CPU heatsink w/fan