@natech
What are the other settings did you use for your OC? like NB volts, vdimm, divider, etc.?

@mrcape
The first E8400 is really a nasty performer. It needs around 1.39v to be stable at 3.8ghz. Batch/FPO Q746A466.

Mine is currently Q746A512. I guess this chip is great for 24/7 but the voltage scales quite high with higher clocks.

I just notice (thanks for the tip) its much easier to work with lower multis with the E8400. i tried 9x467 and 8.5x495 the latter is much easier to work with.