"Overclocking" an AVR
How to make life more interesting 101:

If you don't care
that your results may sometimes be wrong,
that your system may sometimes crash,
that your life may be more interesting,
that your Segway clone only occasionally does face-plants for no obvious reason,
that ...


Then by all means run the part outside manufacturer's spec
You get what you don't pay for.
If you have a $10 head, buy a $10 helmet.

It may often work.

It may not work sometimes.

It may not be obvious that it isn't working sometimes.

A divide may usually work

A jump may usually arrive.

A table may be looked up correctly.

An ADC value may be correct.


Or not