Pentium III amount to 51 ° C

I install a Pentium III 600 MHz on a PC with the original ventilated. The problem is that the CPU goes up to start at 50 ° C and the system at 30 ° C. I would like to know if this is normal that the CPU temperature rises to that while I have a PC with a Celeron at 633 MHz it does not exceed 25 ° C?

Thank you in advance for your Results

thermal paste?

There is a very thin layer under the radiator and a little heart on the CPU.

Hum, now I find it quite unlikely to have a processor at 25 ° C (well, it depends on the ambient temperature), but 50 ° C is not huge. What is important is how he set up for

It is approximately 21 ° C.
If a good after Pemtium III shock to 80 ° C it should go.

Thank you

50 ° a vacuum, but rather normal. Must see how it looks in charge. in general it is to 70 ° After that can vary slightly depending on the type of processor