Keep an eye on
voltage 1.55 max
heat 70c max
Get occt, prime95, aida64 atleast 1 of those for stress testing and get core temp or hwinfo64 for monitoring temps.
There are plenty of fx oc guides out you can look them up.
Little steps on multipliers and volts.
Set test set test if it can't stress test for more then 8hrs or better
With safe temps and voltages it's not stable.
If formal oc doesn't work raise
Core performance boost up a few and a lttle more voltage or Offset voltage.
And retest.
Good luck!!!!!!!!!