Well, at 76 I would not even turn the computer on.
Sounds like either the temperature probe on the motherboard is giving an incorrect readout, or the TIM (Thermal Interface Material) between the heatsink and CPU has been incorrectly applied.
I have the same XP 3200+ Barton, and its famous for temperature problems.
One day, humanity will advance forward and leave behind our humble little world to reach innumerable heights of technology, evolution and civilization, to bring our imaginations into the unsuspecting universe and ourselves... play God.
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