Mike Tomlinson wrote:

Spehro Pefhany writes

I guess that would be a rather serious problem if the temperature
inside your computer case averaged 105°C = 221°F.

Seen a modern mainboard recently? Voltage regulation MOSFETs with
heatsinks on, some with their own extractor fans? Heat coupled to the
capacitors by a few millimetres of thick copper PCB trace for excellent
heat conduction?

Point 1: You can ventilate your case and CPU far better than 'normal'
methods.

Point 2: leave the side panels off like I tend to do !

Graham