In general if you keep it below 60C, you should be fine. If it's above 60C but under 70C, you might need to look for better cooling or at least optimise the cooling system that you currently have. & if it's above 70C, it's critical.
Thx for your time Didou, mine is about 50C+ so I am not too worried.
Is there any windows Appz that would tell me the temp, because going to BIOS every 30min get annoying
Thanks