[userbinator]

but have the effect of significantly increasing clock speed and power.

Ironically, if these failures are due to excessive automatic overvolting like what happened with Intel's a year ago), worse cooling would cause the CPU to hit thermal limits and slow down before harmful voltages are reached. Conversely, giving the CPU great cooling will make it think it can go faster (and with more voltage) since it's still not at the limit, and it ends up going too far and killing itself.