i5 6600k OC

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czcina

czcina

Distinguished
Sep 18, 2012
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Question; whats the best way to test for stability?
I'm not prepared to leave computer on for 24h with Prime95, so... I need something quicker :)

I've tried Aida64 ( 1-2h ), Intel Burn Test ( 50 runs on high ), cinebench, realbench.

All passed, no problem. Temps were different on all programs... Aida64 the best temps, intel burn test was the "worst" as I hit 90.C on one core!

All that was for 4.8GHz with 1.36V ( so stock voltage )...

Today when I was watching football on one screen and playing game on the other - blue screen :(

Dialed it down to 4.7GHz, so far no problems...

So the question is; if I ran those programs, temps were fine and all "passed" and yet blue screen later on... so is there one program I could use, test it once and for all... except running Prime95 for 24h....

6600k ; Z170-a ; kraken x61 ;

 
Solution
Roland Of Gilead
There's a whole raft of opinion on what to use to stress, and measure OC's.

I've tried them all. I use Prime95, small FFT's and test for an hour for first OC and then overnight for, what I consider pretty stable. By using small FFT's you test only the CPU and cache. Prime95 is meant to stress the system so that you can be sure that even under the most stressful circumstances, the system will be stable with no errors. Edit: This is for CPU only. I OC my CPU first, rock solid stable. Then I try my ram. Independently of each other.

I'd say the reason you BSOD at 4.8 was because your vcore needs a bit more.

The main concern is the temps. You have a very high OC for that chip. At stock voltage 4.7/4.8 is right at the limit. Your temps...
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Roland Of Gilead

Roland Of Gilead

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Aug 8, 2008
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There's a whole raft of opinion on what to use to stress, and measure OC's.

I've tried them all. I use Prime95, small FFT's and test for an hour for first OC and then overnight for, what I consider pretty stable. By using small FFT's you test only the CPU and cache. Prime95 is meant to stress the system so that you can be sure that even under the most stressful circumstances, the system will be stable with no errors. Edit: This is for CPU only. I OC my CPU first, rock solid stable. Then I try my ram. Independently of each other.

I'd say the reason you BSOD at 4.8 was because your vcore needs a bit more.

The main concern is the temps. You have a very high OC for that chip. At stock voltage 4.7/4.8 is right at the limit. Your temps should be about 30-35 idle, 45-65 gaming and 70-80 stress testing with Prime95 at the aforementioned setting. Hitting 90c on one or any core for that matter is too high for my liking. Regardless of clock speed attained for my OC's, I use 80c as the max temp, and adjust my clockspeed and voltage back to get 80c. Obviously, getting lower than 80 is great (cooler dependant) and you can fine tune voltage and clockspeed further.


Cinebench, is just what it says. A benchmark, not a stress testing utility. As much as it's usual for some basic metrics, it shouldn't be used to gauge an OC.

For just finding out stable voltage and max temps on a CPU OC, in my opinion, Prime95 is the tool that gives consistent results. All my OC's are based on that application.
 
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