somebody else mentioned the possibility that the cooling did something to the crystal oscillator, but I think there are another two explanations that either alone or in combination might explain what happened: unreliable narrator (OP was very young when the memory was formed) and external influence - his dad or teacher might have done the overclocking which might have been beyond his understanding and therefore notice at the time.
either way there's no reason to take anecdotes uncritically.
It is in Bayesian reasoning.
> either way there's no reason to take anecdotes uncritically.
> Because in this thread there are only theoretical explanations why it cannot be
No, the explanations are referring to the mountain of evidence based on the physics of the chips and the known characteristics of the chips of the time. That's not theoretical, that past observations.