Originally Posted by Zoidberg ZA
According to CPU-Z my core speed was 4.2GHz as I had set, but that doesn't match up with my system BSOD-ing at that known-to-be-safe frequency. As for my core voltage, I had that set on auto - I know the recommended upper limit is something like 1.35? Should I try setting to that? Honestly, I've left most of the setting at auto for fear of making the incorrect changes
Using Auto might the problem. Auto is best suited for stock. So use manual. We can switch to Offset later, but let's keep it simple for now.
The claimed limit of 1.35V is a little bit of healthy paranoia. There are people who have had their 2500K at over 1.4V (as displayed by CPU-Z while running Prime95) with very high overclocks ever since their 2500K was new and they're still not experiencing any problems. However, if you were to do that while keeping a full load on your CPU 24/7 for several months, then you'd begin to see some degradation. Just normal use and gaming though won't do it.
So yeah, set the voltage high (like 1.35V, since that should be way higher than is needed for 4.2 GHz) and work your way down until you experience a problem. Then bump it back up to the last tested voltage and then test your system's stability with Prime95 (version 27.7 or newer). If you want a good test of your system's stability in Prime95, then choose "Custom" when you open it and then in the field for how much memory to use, enter around 80 to 85% of your memory. You don't have to be precise, but 80% of 8 GB is exactly 6,553.6 MB, but decimals aren't accepted in that field. 85% is 6,963.2 MB. So really, like anything from 6500 to 7000 MB would work very well. Don't go much higher because then it begins being less and less effective as a test of your system's stability.
Now that you are here on Overclock.net, you no longer have anything to fear. You can just ask us before making any changes.
Edited by TwoCables - 10/18/15 at 8:15am