No matter the case, a CPU temperature should play around 70-80 degrees celsius when gaming. When the computer is doing small processes or in an idle state, it should be around 45 degrees celsius to a little over 60 degrees celsius at most.
Some CPU boards claim not to need CPU fans such as the ASUS ranges, where as MSI and Gigabyte tend to include CPU fans by default.
Overclocking temperatures could in theory go as high as 90°C while still being ‘safe’, and the max temperature for many CPUs is listed in the 105-110°C range. But for long-term use, you’re much better off keeping things below 80°C in general and only pushing up to 85°C at the most.
In a completely sane world, madness is the only freedom (J.G.Ballard).