FX-6300 OC issues

no, increase voltage and if that dosent work, increase HT voltage

Would 69c be too hot when stress testing it? It does not say there for longer than many 30 seconds.

i would try to get it lower than 65c

That is with that heat intense Large fft test in prime95. It ususally stays under 65c for all but about a minute of the stress testing

 

it will probably be fine then

Prime95 is more hardcore testing than the CPUs wever ever designed to be stressed to, so I am pretty certain it will be fine myself.