--
Some motherboards are designed to recover from "overclocking failure".
At least, that is the design intent of the BIOS. But any kind of crash,
may trigger a recovery at the BIOS level. The BIOS settings may
return to defaults. On older BIOS (I have one), everything returns to
defaults. On some newer boards, only the clock settings are returned
to "sane" values. Such features mean, that sooner or later, the
user gets to learn about how to work the BIOS :-(
Paul