20 January 2011 - 01:46 MSK
there's lots of reported bugs with xp stating that it registers the incorrect clock speed; but cpu-z should read the correct speed. As your cpu-z and windows are reading the same and your second attempt at over-clocking didn't have any effect; i'd think your best solution is gonna be a format.
win7 ftw... or be brave and go linux ^_^
win7 ftw... or be brave and go linux ^_^