Broken cpu sensor?

I've had a celeron 420 (1.6GHz) for a few years, when we first got it the temps were fine (sometimes 23C!)

Now however it says it idles at 60C and underload it says it's 100C.

I don't see how the cpu could continue to operate if it were really at those temps.

I've tried a variety of different coolers and none worked.

I have an E2220's cooler on it right now, kept it idling at 36C for the Pentium Dual Core however the Celeron idles at 60C.
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More about broken sensor
  1. You could try a BIOs update too see if it cures the temperature readings. Failing that coretemp and realtemp both give accurate readings
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