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Is this good for an 4790k OC?

post #1 of 16
Thread Starter 
So before doing anything I did a lot of looking into temps and most tech sites like Guru3d, Legitreviews, Toms Hardware etc all said the same about the cpu hitting 90s during extreme benching like IBT so I wasn't too worried since my temps are currently not going above 60c in my games.



CPUZ Validator
http://valid.x86.fr/xr2ra1
Edited by SpykeZ - 9/21/15 at 6:44pm
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post #2 of 16
Are you on the latest BIOS? How high does the voltage go when it's at 100% load? Have you tried stress testing with AIDA64 or any other stress testers? If so, did using those increase you CPU to the same temps?
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post #3 of 16
something isn't right ..... you should be maxing (worst case) around 75c unless yer using 1.45v which is ridiculous.

SS
post #4 of 16
Thread Starter 
Quote:
Originally Posted by ssiperko View Post

something isn't right ..... you should be maxing (worst case) around 75c unless yer using 1.45v which is ridiculous.

SS

That's not what I was reading when using IBT under Very High on 20 passes. redface.gif

Now I'm a little upset.

When I'm gaming it doesn't go above 60
Quote:
The first thing you need to know about Haswell you already found out in our review (read it here if you haven’t already) – it runs hot. You will need a lot more than the stock cooler if you want to overclock. With a very good air cooler or all-in-one water cooler, you’re looking at a heat limited voltage cap of about 1.25 V. At that voltage with air or AIO cooling, you’ll be seeing temperatures in the upper 80’s to lower 90’s (°C) range under normal full processor load.

I didn't use this guide, it's just what came up while looking for information on temps.
http://www.overclockers.com/3step-guide-to-overclock-intel-haswell/
Edited by SpykeZ - 9/21/15 at 7:03pm
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post #5 of 16
Are you trying to confirm your OC or asking about temps? There's absolutely no reason to use IBT beyond wanting to burn the CPU, there's a thread or two here which tell you what to use to check stability, hell use Prime over that if you want to check something.
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post #6 of 16
Thread Starter 
Quote:
Originally Posted by error-id10t View Post

Are you trying to confirm your OC or asking about temps? There's absolutely no reason to use IBT beyond wanting to burn the CPU, there's a thread or two here which tell you what to use to check stability, hell use Prime over that if you want to check something.

I've always used IBT to test stability and has always done me fine without "burning chips up".

I'm asking if the clock and voltage is good.

the HWmonitor doesn't show what the average temp was. Those high near 100C temps lasted less than a second. It was usually 93C.

What else is there to use?
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post #7 of 16
Thread Starter 
Quote:
Originally Posted by ssiperko View Post

something isn't right ..... you should be maxing (worst case) around 75c unless yer using 1.45v which is ridiculous.

SS

Trying that intel extreme tuning software and I'm averaging 65-70C under full load.
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post #8 of 16
Quote:
Originally Posted by SpykeZ View Post

I've always used IBT to test stability and has always done me fine without "burning chips up".

I'm asking if the clock and voltage is good.

the HWmonitor doesn't show what the average temp was. Those high near 100C temps lasted less than a second. It was usually 93C.

What else is there to use?
My suggestion is to keep the CPU cores below 80C, especially for long lengths of time. You don't want to cause premature degradation to the chip. I'm not saying it would happen within the length of a stress test, but try to avoid it. That's weird that it doesn't show average temperatures, I use HWiNFO and it shows average temperatures for me.

In my opinion, Prime95 for 8 hours is acceptable for stress testing. I know some people swear by 12 hours... but 8 hours almost always detects errors for me if my overclock is unstable. I always use the latest Prime (in Haswell/Skylake's case that would be FMA3 instructions), but most people claim regular AVX (non-AVX2, v27.9) is enough. I'm not sure whether that's true, since I run BOINC and want to be stable for the latest instruction sets. But as other people said, IBT is an extremely synthetic test and is essentially designed to reach the theoretical maximum throughput of a CPU, it's not necessary to determine stability and can run very hot.
 
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post #9 of 16
Thread Starter 
Quote:
Originally Posted by Diablosbud View Post

My suggestion is to keep the CPU cores below 80C, especially for long lengths of time. You don't want to cause premature degradation to the chip. I'm not saying it would happen within the length of a stress test, but try to avoid it. That's weird that it doesn't show average temperatures, I use HWiNFO and it shows average temperatures for me.

In my opinion, Prime95 for 8 hours is acceptable for stress testing. I know some people swear by 12 hours... but 8 hours almost always detects errors for me if my overclock is unstable. I always use the latest Prime (in Haswell/Skylake's case that would be FMA3 instructions), but most people claim regular AVX (non-AVX2, v27.9) is enough. I'm not sure whether that's true, since I run BOINC and want to be stable for the latest instruction sets. But as other people said, IBT is an extremely synthetic test and is essentially designed to reach the theoretical maximum throughput of a CPU, it's not necessary to determine stability and can run very hot.

How about that Intel Extreme Tuning software? Running stress test on that and so far my temps rarely go over 71. Usually mid 60s.

[edit] Same thing with Prime 95 blend. Been running for a bit now and it's bouncing around 65-66-67
Edited by SpykeZ - 9/21/15 at 7:29pm
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post #10 of 16
Quote:
Originally Posted by SpykeZ View Post

How about that Intel Extreme Tuning software? Running stress test on that and so far my temps rarely go over 71. Usually mid 60s.

[edit] Same thing with Prime 95 blend. Been running for a bit now and it's bouncing around 65-66-67
I'm not sure, I've never used it. I haven't really tried any stress tests outside of IBT and Prime95, but Prime95 has always worked for me and they support the latest instruction sets quickly (which is good for making errors surface faster). I think that your temperatures are fine, as long as you're not going too high over 80C a lot you'll be okay. There are a lot of threads about various stress tests, the most popular for Haswell/Skylake seem to be modified X264 benchmarks and Prime95. I personally like Prime because it's been proven over time and prime searching is a task that I run on my PC sometimes.

Those are good temperatures for blend. I just try to keep my temperatures around 75-80C maximum. Really the stress test temperatures don't matter as much as stress test stability, temperatures only matter when you're hitting them frequently. Stress test stability is important because it can show you instability that you might not find until you get an error during an everyday task one day.
 
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