Originally Posted by GRABibus
By the way, I decided also to set up a stable overclock, even with AVX2/FMA3 severe stress tests as Prime95 v28.7 Small FFT's and Aida64 FPU.
For this, I defined a criteria so that the hottest core temperature will be always < 80°C at 22°C ambient temperature during those 2 tests.
I decreased my Vcore until to get this criteria achieved : I had to decrease it from 1,25V to 1,1V.
I will now found my higher overclock possible with 1,1Vcore to be stable in following tests :
Prime95 v28.7 Small FFT's => 12 hours
Aida64 FPU => 12 hours
And of course, also real world application stress tests :
ASUS ROG RealBench 16GB => 8 hours
Aida64 CPU+FPU+Cache+Memory+GPU => 12 hours.
I have already done 1 hour Prime95 v28.7 Small FFT's with 4,4GHZ (44x100) and 1,1Vcore/Vccin=1,9V/Vring=1,1V => Was running without any issues during 1 hour (Max temp = 76°C on hottest core at 22°C ambient temperature).
That means I am optimistic to get a stable "rock solid FMA3/AVX2 overclock
" maybe at 4,4GHz or 4,3GHz with 1,1Vcore/Vccin=1,9V/Vring=1,1V.
This will be an overclock beside my other stable "Gaming and not intense FMA3/AVX2 applications"
one at 4,7GHz/Vcore=1,25V.
Ok, still optimising my 2 overclocks : the "Rock solid one for all applications including AVX/AVX2/FMA3" and the "Gaming and standard applications one".4,7GHz (47x100) - Vcore=1,23V :
=> Daily use and Gaming overclock
Running Realbench stress test v2.42 16GB RAM during 8 hours => No errors
Running AIDA64 CPU+FPU+Cache+Memory+GPU during 12hours => No errors
This overclock I will use for current daily computer use, mainly for gaming.4,3GHz (43x100) - Vcore = 1,07V !!!!
=> Rock solid overclock for all applications, including intensive AVX/AVX2/FMA3 applications
I had found the stability at Vcore=1,1V.
I decreased Vcore until finding the "Limit stability state".
I could run 12 hours Prime28.7 build 1 Small FFT's during 12 hours without any errors with this Vcore=1,07V !!!
(Max core temp=77°C at 22°C ambient during test). (I use Prime95 v28.7 build1 Small FFT's tests 12hours as reference stress test for the said "Rock solid overclock for all applications, including intensive AVX/AVX2/FMA3 applications").
For my both overclocks, Vccin=1,9V and Vring=1,1V.
I will run Realbench stress test v2.42 16GB RAM during 8 hours and AIDA64 CPU+FPU+Cache+Memory+GPU during 12hours, but I am confident they will pass...
Final statements on next Thuesday evening
4,3GH at Vcore = 1,07V probable "full rock solid overclock" and 4,7GH at Vcore=1,23V for "gaming and standard daily use", believe me, I am happy of my rig at the moment Edited by GRABibus - 1/24/16 at 9:18am