This is a little confusing because you were referring to a Core i5-6600 and presumably an i5-7500T or i7-7700T above but now you mention a 5600. Are you referring to a Ryzen 5 5600?
This is a little confusing because you were referring to a Core i5-6600 and presumably an i5-7500T or i7-7700T above but now you mention a 5600. Are you referring to a Ryzen 5 5600?
Yes
As we discussed elsewhere you could put the Ryzen 5 5600 into 45W ECO mode and cool it passively. Or a Ryzen 5 7600 if you decide to jump up to AM5 (which is probably a good idea even though you'll need new RAM).
As I probably replied there too I do not want to build hardware that can burn my house down if the wares are crap and decide to reset for some reason.
It will simply throttle.
Which is not good for longevity.