Originally Posted by Timeofdoom
I think we've agreed on giving up on using Prime with these procs, since Prime would fail for some even if these FX's were at stock. And I tended to agree, since I couldn't get prime stable, but I did get IBT 20 runs stable at my settings....sooo. Give up on Prime for now, since it's being an absolute wad with the vishera CPUs.
I think that quite a few users have found their OCs to be Prime stable. Code issues with the program vs. chip architecture shouldn't vary from user to user but should be constant all over the board.
From what I've seen (and not just me) Prime is more sensitive to CPU-NB and RAM speed / voltages. Many people assume that if the RAM is rated at speeds higher than 1866 then the CPU-NB will automatically work with the ram at that speed and be stable (and chose to ignore the fact that running the extreme profile requires up to 1.35v on the memory controller as specified in the XMP profile).
Not passing judgement on whoever chooses NOT to trust Prime95 with PD, it's a personal choice. But I believe that stating for a fact that P95 is reliable and that this has been agreed on is a bit of an overstatement. I believe that each should read and test and then make up their own mind instead of being told that P95 is not a reliable benchmark on BD.
Moreover, 20 IBT runs is not necessarily stable either (though it may be). I for example have passed 20 IBT runs on High with the 8320, P95 would fail almost instantly. If I had gone by this reasoning then I would have considered that a stable OC. I tried OCCT and that one failed also after almost an hour and also IBT failed after up to 80 runs. This is just to make a point - 20 runs of IBT does not mean that the OC is necessarily 100% stable and that you should disregard any other stress test just because.
I personally have gone from "can't do more than 200+ MHz in Prime" to "500+ MHz and lowering the voltage by 0.05 just by lowering the RAM speed from the rated speed of the module - 2133 to the rated speed of the IMC - 1866 and lowering the timings so that the performance won't suffer.