So I have the Asus M50Vn (which is similar to the M50Sv, which there is a disassemble guide out there on Google if you'd like to know what mine looks like inside) that is about 6 years old and is having some over heating issues.
I'm including a couple of screen shots of temps so you can see the temps/fan speed while it is at idle. If I'm gaming, then the video card shoots up to over 105 degrees Celsius.
Now I've clean out the dust out of this pretty well, so I'm not sure if it's the video card that is giving away or if I need a new fan. Anyone know?