Originally Posted by ziggy1971
I'm still an Oc'ing noobie so I'm curious, how does one determine/conclude a system as being "24/7" stable? What software does one use for testing? How long?
I've been running my system, P9X79 Pro/4930K @ 4.6GHz with ~1.408-1.416v and the temps never over 80C and it's great, especially x264 video encoding, which is the main reason I upgraded from a quad-core.
Please note, I use offset voltage not a manually fixed setting.
I find myself using a blend of programs to determine full stability. Make sure you monitor your temps/voltages when running these tests.
I personally use Intel Burn test and run about 5 runs on standard just to get an initial starting point of stability. If it blue screens on you then you go back to the bios and make adjustments voltages/clocks etc. If it passes then run it on very high for about 3 runs. Some people run this program 20x runs but its unnecessary because this program puts 100% stress on the cpu. No need for extra heat to fry your chip.
I then find myself using Prime 95 to catch instabilities that Intel Burn test may have missed. I will usually run that for about 3-5 hours to ensure I am perfectly stable but you can run it over night if you'd like.
I also like to run benchmarks and stress tests just to see where I stand with my clocks so I will run programs like 3dmark and Cinebench and see what kind of numbers I achieve to make sure my scores are around where they should be. If it crashes on those your def not stable.
Last but not least is the fun part. I play games that will really stress my system to the max. Crysis 3 is a great example of a game to test your PC with but their are many others. If you can run the campaign and play it fine for a few hours after passing all the above tests then I would consider your system very stable if not 24/7 perfectly stable.
This is the method I use, some people may vary. Blue screens are just your PC's way of telling you to make adjustments. I am on windows 8.1 but BSOD error code lists are listed online and on OC.net if you are not sure why your pc locked up. Check those out to. Goodluck and enjoy!
Originally Posted by Silent Scone
I prefer the more subtle voltage. I run mine a 0.040+ offset now @ 4.5 1.280v with medium LLC.
To each their own. Intel rates their chips to 1.4v being fully safe up to spec. 24/7 with no worries and even that number is biased and made to be extra safe. With an overclock like 4.7+ you will notice even with an offset your voltages will spike up and down even though temps/voltages will run lower and cooler. Its really a matter of preference. Some chips can't even achieve a 4.7 with decent voltage.
I personally prefer fixed voltages and steady juice flowing to my chip at all times. Voltage fluctuations in my experiences with electronics do more harm then good in my opinion.
Temperature is really what kills chips and excessive voltages for everyday use. I say voltage under 4.5v is still considered safe with proper cooling. If you wanna be 100% safe keep it under 1.4 as per Intel. I average 37c on idle. and max out at 76c on 100% load and that makes me
. I have had my chip for 6+ months and it runs just as good as the day I bought it. I also have a tuning plan also but I doubt I will ever need it.Edited by danycyo - 5/15/14 at 2:08am