"I'm just curious what is the normal or safe temperatures, in celcius, for a computer to be at? What should the BIOS, or maybe a utility, be reading?"
Bear in mind that the common answer is that if you are sitting in the same space as the PC and you are comfortable without fans blowing at you, then a properly made PC will be just fine.
Today, many machines are being bolted together without testing for proper cooling. The numbers you ask for vary widely according to what exact unit you have. No one can answer your question yet.
But when I suspect a heat issue, I remove the case cover, inspect the fans for what I think is full speed, then point a fan at the inside parts to see if the problem vanishes. If it does, then we look for fixes or if need be, new motherboards and other parts.
WHAT?! You exclaim! New motherboard? Yes. Put in these words into http://www.google.com BAD MOTHERBOARD CAPACITORS What I'm seeing is that such boards with bad capacitors don't tolerate heat as well as boards with normal capacitors. It's a shame the industry stumbled so badly on this one.
I'm just curious what is the normal or safe temperatures, in celcius, for a computer to be at? What should the BIOS, or maybe a utility, be reading?