How hot should my 8200 run?

[WannaZO6]

I was playing SimCity 4 and my computer just shut off. I think it was runnig too hot because I let it chill for a minute and it booted back up just fine. What kind of temperatures should it be running at? Its an Inspiron 8200 with a 1.6ghz P4-M. Its at 47 C now but when I booted it back up its was at 52 C.