Temperature of Cel. 566 - 700

[Brunajs]

On my FCPGA Cel. 566 I have measured temp of 33°C (idle) and 55°C (on load). When overclocked to 700 MHz (83 FSB) it shows 33/69°C. Is this still safe or not? System appears to be stable, no crashes. How far can I go? I hoped I will reach about 850 MHz-100 MHz FSB, but what will be the temperature? System temp. is always 33 °C, I use relatively effective (I think) cooling with 2 fans and silicone paste applied.
2nd question: I use slot 1 MB with reduction and I know the thermistor is located somewhere inside the slot - relatively far from CPU. What is REAL temperature on CPU then and why it is so high?😕

 

[AndyHui]

The CPU thermistor is on-die for all processors following the Pentium II Deschutes class CPU. I think you will find that although the thermistor itself may be accurate, the readings from the BIOS may not be.

Those temperatures of yours seem very high. Perhaps you should make sure that your fan/heatsink is making proper contact, and then perhaps look at getting some better thermal transfer compound, such as Artic Silver if necessary.

Intel's processors are spec'd to run at a maximum of around 80°C. Most Pentium III Coppermines, including the Celerons, rarely reach over 50°C.

 

[Mikewarrior2]

Brunajs,

What motherboard are you using?


If it is a motherboard that reads the internal diode, the reading you are getting is the temp your cpu is running at, give or take a correction factor of +-4C or so.


Mike

 

[Brunajs]

I have Soyo SY6VBA133. BIOS always shows temperature between 52 - 58, whatever FSB I choose.