Hot I5 4690k over clock advice?

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Scotty T

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Hello I have a new i5 4690k / asus hero vii combo I recently installed in my rig. Problem is its over clocking hot. Its on a corsair h75 cooling solution (i was holding out for the 100i but this one was on sale for 55$) well it's barely pushing 1.185 V at a stable 4.3 OC with prime 95 temps pushing 88c about 84c avg. I feel like I should be able to get 4.5 at 1.20-1.25v before hitting those temps as I have seen others achieve online. Possible solutions? I am thinking bad cooler install some how, bad airflow in case, bad thermal paste seal, or the h75 just sucks and should have stuck with what I knew. Or is there maybe a setting I am missing in bios everything is set to manual but it appears my chip is using more volts to get stable then others are reporting. Example I need 1.2 to hit 4.4 and I see lots of others hit that at 1.19v and lower.

Any problem solving would be helpful before I just pull out a cooler and try to get it exchanged for another. Or assume I just got that unlucky on the CPU lottery.....
 
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I stress tested with Aida64 and prime 95 version 26.6. Aida64 picked up small instabilities within half an hour. Always test with vcore set to manual, and use HwInfo to monitor vcore so you can monitor vboost.

5 way optimisation is good, but it does over egg the vcore. Not by terrible amounts, but I was able to drop by about 0.025v doing it manually. I also noticed my temps were less erratic while gaming. Having said that, it's great to get a quick oc.

There is a sticky thread in the forum all about Intel temperatures. You should go read it. There is a link to the prime 95 version I used in there.
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_alma_

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Which version of prime are you using and which test are you doing?. The latest version runs stupid hot with this chip. Small FFTs and even blend make my chip rise to 100oC at 4.6Ghz /1.248v.

As for what voltage, that's a lottery and chip dependent.
 
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Scotty T

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Oh sorry I am using the latest prime 95 version and running the small FFTs monitoring the temp with core temp. Sounds like that stress test runs hotter then all the rest but is it there a more accurate realistic stress test to use? I had almost convinced my self I had messed up the cooler install somehow, thermal paste? I would like to get this stable at 4.5 at 70c or under on a solid stress test
 
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jasonite

jasonite

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There are a few possibilities, can you tell me which case you're using? Also, be aware that some chips are good for OC'ing, some are ok and some are bad, it's just luck of the draw to which one you get. The quickest answer I can give you is to just increase your voltage. I have a 4690k and have it OC'ed to 4.55Ghz at a voltage of 1.295v, but every chip is different.

I feel like I'm preaching this to everyone but don't use Prime95, it can do bad things to your CPU, like dramatically overvolt it. Use your AI Suite 3! Do the 5-way optimization and set it to extreme tuning, ratio only, and per core and let it do it's thing. Then do it again but set it to all cores and go with the higher result. It's also a good idea to set it to memory test for 30 seconds. Asus puts it under enough stress to get it stable.

If that's not enough stress-testing for you try using what anandtech does (and me too): download POV-Ray and do a benchmark test, then get OCCT and do a 5-minute test with the large and small data set. That is all you need.

J
 
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Scotty T

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Yes I am using the thermaltake T1 full case the h75 fans are in push pull exiting the rear of the case on either side of the radiator. Well I had already pushed my over clock to 4.5 at 1.25 but if course prime 95 ran up to 95c in like a minute so I immediately shut that horror show down I use CPUZ to monitor voltage but will it not catch prime 95 ramping up the volts? I am not familiar with those stress tests but if you have used them I will give em a go
 
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_alma_

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I stress tested with Aida64 and prime 95 version 26.6. Aida64 picked up small instabilities within half an hour. Always test with vcore set to manual, and use HwInfo to monitor vcore so you can monitor vboost.

5 way optimisation is good, but it does over egg the vcore. Not by terrible amounts, but I was able to drop by about 0.025v doing it manually. I also noticed my temps were less erratic while gaming. Having said that, it's great to get a quick oc.

There is a sticky thread in the forum all about Intel temperatures. You should go read it. There is a link to the prime 95 version I used in there.
 
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Scotty T

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Thanks for the reference sticky very good read. I usually prefer over clocking manually so I can fine tune everything and avoid any over voltage like you mentioned. Well I am definitely going to retry my stress testing with aida64 and prime 95 26.6 from the sticky I will repost my findings later. Also the above goal of below 70c is a goal I am trying to reach at 4.5 but I will be satisfied with anything under 80c
 
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Scotty T

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Well already a huge difference, the prime 95 26.6 version is running 20c cooler then the new version thats a +1 for do not use new prime 95 on a 4th generation intel chip. I will continue tweaking and test with Aida 64 as well and repost my final results.
 
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Scotty T

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Ok so at 4.5 I am stable so far at 1.275v (had a crash 10 minutes into prime95 at 1.274) and temps on prime 95 26.6 is avg about 76c however 15 minutes on AIDA64 FPU test I am avg 84c seems a bit hot but is AIDA64 known to push a CPU above and beyond?
 
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_alma_

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Running the fpu test by itself will make your chip run hot. I think it's for the same reasons as P95 latest running hot (somebody correct me if I'm wrong). For stability, check the first three boxes (CPU, fpu and whatever the third before memory is. Cache I think). It'll run cooler, probably in the mid seventies.
 
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Scotty T

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Thanks again, I will give that a go see if it brings the temp down I am unfamiliar with adia64, I will repost the results when I can
 
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Scotty T

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Well sir your right again running the CPU, FPU, and stress cache test together is much cooler. I was getting low 80c readings in just FPU running all three I am seeing temps in the mid 60s highs in the low 70s big difference. I did have a crash at about 30 minutes so I am sitting at 1.28 volts @ 4.5 clock after an hour running Aida64 and prime95 26.6 I am wrapping a bow on this over clock dont see any need to push it higher. Thanks for all the help!
 
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