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Really Need Your Help Please!! (OC 5820K)

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Torguy

New Member
Joined
Feb 2, 2016
So I m trying to overclock my 5820k, I am able to get 4.3Ghz at 1.3V, but the problem is that it reaches temp of Max 95 degrees using Prime95.

So for my first question, is 95 degrees too high I assume?

For my Second question, when I use Asus RealBench, it only gets to around 65 degrees with of course 100% CPU usage, so why is it so drastically different?? Which one do I trust??


I would greatly appreciate any help you guys can offer!




My Basic Specs:
5820k
Cooler Master Hyper 212 EVO
Asus X99-A
16gb Corsair 2800Mhz OC to 3000Mhz
850Watt evga PSU
 
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Johan45

Benching Team Leader Super Moderator
Joined
Dec 19, 2012
Prim95 uses AVX2 heavily and for this platform I have seen people recommend not to use it. Or use an older version. That being said, there's nothing wrong with P95 but it's much harder on your system than you are likely to be. Depending on your use for the computer will determine the kind of stability you'll need.
 

dionisios

Registered
Joined
Jan 19, 2016
How do you feel about Prime95 vs Asus Realbench?

I don't use either one; I've read that Prime95 is not good for Haswell-E CPUs, so I wouldn't personally use it for anything with X99.

I would recommend Aida64 and Intel Extreme Tuning Utility.
Try a system stress test in Aida64 (all boxes checked) and run it for 1 hour. If you pass, then try a 30 minute FPU+CPU stress test. If that passes, then try a 30 minute FPU only stress test (this one will get HOT like Prime95). If that passes, go to Intel XTU and run a 30 minute stress test. If you pass, move to final step:

Run a high-bit-rate 1080p MKV encode on Handbrake (best source is to rip a Blu-ray movie if you have any using MakeMKV then re-encode that monster file using Handbrake). If Handbrake completes the re-encode without crashing, at that point there is a 99.99999999999% your overclock is stable. If it "completes" the encode without actually creating a playable file, you are not stable. If you get a BSOD, obviously you are not stable.\

Another fun way to test stability is to play Crysis 3 on Ultra settings. :)

You don't need to do 40-60 hours of number crunching torture testing to determine if your OC is stable; others may disagree, but I think it's ridiculous and a waste of time.
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
FPU only in AIDA64 = P95. As I understand it, selecting FPU only kicks in the AVX2 instructions???

Stability is in the eye of the beholder. As many people that are on these forums, is as many different answers that you will receive on this issue.

If its stable for YOUR USES, then do what works for you.

I personally stick with AIDA64 for a couple of hours. After that passes I go no about my business and that usually works for me.

Regardless, just keep that CPU under 90C during any testing/use and you will be fine. Much above that it can tend to get unstable (even though it throttles itself at 100C).
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
As EarthDog said, stability is in the eye of the beholder.

For my stress testing, I want to make sure that my system is 24/7 reliable at the overclock I choose. For reference, here is my test:

1. Set CPU multiplier and voltage (I used fixed...others don't)...if previous setting was bad either decrease CPU multiplier or increase Vcore
2. Run Intel Extreme Tuning Utility processor stress test for 10 minues...CPU good, go to step 3...bad, go to step 1
3. Run Intel Extreme Tuning Utility memory stress test for 10 minutes...CPU good, go to step 4...bad, go to step 1
4. Run HyperPi at 32 M...CPU good, go to step 5...bad, go to step 1
5. Run Prime95 (version 26.6...28.5 or higher will push CPU power over 200 W) for 10 minutes in small FFT mode...CPU good, go to step 6...bad, go to step 1
6. Run Prime95 (version 26.6) for 30 minutes on blended mode...CPU good go to step 7...bad, go to step 1
7. Run [email protected] at 60% processor and Heaven 4.0 graphics benchmark for 30 minutes...CPU good, go to step 8...bad, go to step 1
8. Hurray!!!

If I make it to step 8, then I have a stable overclock.

Watch your CPU temperatures...I like to have my CPU temperatures under 80 C. (Others accept higher, others like lower). With my current rig and overclock, temps stay under 70 C.

Hope this helps! And welcome to the fun! :D
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
Wait, I dont? :rofl:

Full disclosure for dion, you should tell him why you need the stability and go through that process. :)
 

JrClocker

AKA: JrMiyagi
Joined
Sep 25, 2015
Full disclosure for dion, you should tell him why you need the stability and go through that process. :)

Because I'm a geek...and proud of it!

Seriously...I run my machine 24/7. When I'm not using it, the PC contributes to [email protected] When I am using it, I am either gaming heavily, or doing video encoding.
 

dionisios

Registered
Joined
Jan 19, 2016
I'm also running 24/7. It's worth going through some testing, but I feel that people have become overly reliant on P95, Aida64, etc with these simulated workloads. I've run Aida64 and far in the past, P95 for 24-36 hours and had perfect results. Then promptly got a BSOD using AutoCAD for a couple of hours, or an encoding error in Handbrake after 30 minutes. So I find that using real programs (and games if that's your thing) is the real test for stability. In your case, run [email protected] if it crashes, then you aren't stable. :) Run Handbrake for a couple of hours- that usually reveals issues quickly and reliably. :)




Because I'm a geek...and proud of it!

Seriously...I run my machine 24/7. When I'm not using it, the PC contributes to [email protected] When I am using it, I am either gaming heavily, or doing video encoding.
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
[email protected] though is not a stress testing program. It actually hurts the program when you take and bork WUs. While it happens, it shouldn't be used intentionally as a stress test due the effect it has on the effort. :)
 

mimart7

Member
Joined
Jun 6, 2011
[email protected] though is not a stress testing program. It actually hurts the program when you take and bork WUs. While it happens, it shouldn't be used intentionally as a stress test due the effect it has on the effort. :)

The WU's get dumped back into the pool for someone else to pickup. This in turn, delays the completion of the project.
 

dionisios

Registered
Joined
Jan 19, 2016
Yeah- probably not the best example :p
Point obviously was, in general it's best to do the things you typically do as a guide for figuring out how stable your system is.
Lots of crashes and glitches are due to high voltages applied to not-so-great CPU samples and thermal breakdown over continuous heavy load; not good for your CPU/ system long term, and not necessarily proving/disproving "stability" of your system.


[email protected] though is not a stress testing program. It actually hurts the program when you take and bork WUs. While it happens, it shouldn't be used intentionally as a stress test due the effect it has on the effort. :)
 
OP
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Torguy

New Member
Joined
Feb 2, 2016
Yes I heard about P95 not being good for Haswell-E so I'm staying from away from it.

Anyways so far I have got it to 4.3Ghz with 1.3V with temps of around 65 degrees completely stable on OCCT, AIDA64 and Asus RealBench including all my games so far.

The really odd thing is that if I push it to 4.4 or 4.5Ghz with 1.31V the Temps stay at around 80-85 Degrees but it still crashes the system, and if I push it to 1.32V the system wont even start.

I wonder if there is anything else I can do to keep it stable with 4.4 or 4.5Ghz???

I am more than satisfied with 4.3Ghz, but I would like to push further just for fun!
 
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