i7 4790k, noctua NH d14, ASUS maximus 7 hero, arctic silver 5, WEIRD temperature pattern,

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Hardpchow

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May 10, 2014
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hi tomshardware people!

system main spec:
window 8.1 pro
i7 4790k
arctic silver 5 paste
noctua nh D14
maximus 7 hero
Gkskill trident 2400mhz 16gb
asus gtx 780ti
Seasonic platinum 850w
cooler master HAF X
......

I just built a new pc one week ago or so.
I didnt let it run for 24/7, just use it for web surfing, steam download, and I did not start gaming yet.

Initially the temperature profile shown is quite stable, I had monitor the system temperature and the fan speed randomly through the day.


HERE IS MY INITIAL 1ST WEEK SYSTEM TEMPERATURE at random time. (under almost close to zero mode load, or idle, mostly download steam game only
)
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IMG-20140706-WA0015_zpscaee88ec.jpg
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One week had passed and everything seems to be stable, only until today morning some BSOD occur, ( my razer mouse caused some error, and the mouse was not detected, I fixed it by re-plug it into another USB port)

After fixing the BSOD, my system temperature changed, I found that generally the fans are speeding up! (system temp are about the same, maybe higher a bit, while all fan speed increased)

CPU fan increased about 60rpm or more, while CPU opt fan, and other fan increased by about 20rpm or more , just to keep the almost same system temperature.


LATEST SYSTEM TEMPERATURE
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Please help me. why does it happen? I don't know why all the fan speed bumped up suddenly. Since the system temp remained about the same, I suspect that the increased fan speed is used to cool down the CPU under certain load. but I don't know what is it.


 
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Hardpchow

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May 10, 2014
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Hi thanks for your reply!

no... a 60rpm bump in today morning!
I just woke up and switch the system on, and found that the windows 8.1 pro desktop freeze, then BSOD, without mouse control.
I managed to settle the problem by replug the razer mouse...

Then all things and reading changed...
 
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dwatterworth

dwatterworth

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Dec 5, 2012
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Try checking the fan curves in the Fan control application. Even a .25 degree change can push the fans up on the curve, increasing fan speed.

If you plugged the mouse into another USB port, it is possible that you went from a motherboard controller USB port to the CPU chipset controlled USB ports which could add a very minor CPU power increase.
 
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Hardpchow

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May 10, 2014
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Hi dwatterworth!

I removed my razer keyboard and mouse already.
But the situation is the same.

Generally the fans' speed are still higher than those before the BSOD incident.

I am pretty sure that my cpu load were always low... (comparing first week , and these few days after BSOD)

With the same CPU load and a higher fan speed, should not my system temp become lower ?


Hmmmm... Is it possible that the fan speed reading suddenly became inaccurate after the BSOD incident?
 
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dwatterworth

dwatterworth

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You might have inaccurate fan speed reporting, I know I've seen widely differing numbers when using different monitoring softwares at the same time. The thing to watch when the temps increase would be your Vcore if your fan speeds and CPU loads are constant.

Alternatively, you can try disabling speed stepping to see if your temps keep fluctuating at a constant CPU clock rate and loading.
 
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jkteddy77

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Jun 13, 2013
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Hmm... Very odd. What you could do if you don't like the extra 20-60RPM (which do basically no change in temperature) Is go into FanXpert3 and change the curve of the fans a tad lower, to force it back to how it was. I'm guessing it will still run the exact same temperature, and you'll have a bit slower less noisy fans.

I have 4790k, Asus Z97 Pro so I have the same program. Ai Suite 3 has never worked properly, and it all could have been a glitch in the program that for some reason triggered with the Mouse Driver/USB error. Personally, my fans run 676-1986rpm, mainly 1286rpm on all, and for some reason 2000RPM's n the CPU opt... so like I said, not a perfect software.

I am curious, how well does the Noctua D-14 Cool this Devil? I have the Hyper 212 Evo, and just from gaming in Metro Last Light and Battlefield 4, My cores go from 58-70C, and my package can even Reach 72C... I heard it shouldn't pass 72C or 76C or so.
In fact in Metro Last Light, when it hit 72C on the package temp, I dropped from 60fps to 16fps... until the temp went back down to 71C...

So, what are your load temps on the Cores/Package in your most instense games, and have you tried stress testing it? I junped to 76C withing 1 minute of Prime95, so I ended it : /

So would a Noctua D14 do me much better?

P.S. How did you get your GPU to show in Ai Suite 3 under TPU? Is it an Asus GPU only thing? Or is there a way I can get my Sapphire 290 to show in TPU?
 
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dwatterworth

dwatterworth

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Oh wow, what case do you have your hyper 212 in? I would try adding a second fan for a push pull setup and if you haven't done so, cleaning up cabling etc around the airflow paths (probably already done). I've got a 4790k for a render node / part time htpc that is on a noctua NH-C14 and I don't see it get past 55c while rendering. No overclock applied yet, but the 4 cores are parked at 4.4ghz throughout the render. If your hyper 212 hits those high temps, what thermal compound/material are you using? A huge reason the noctua coolers are a big hit across the board is they include their excellent thermal compound in all their cooler kits.

On a machine I built for a client, I included a hyper 212 on a 4670k and I saw a 4c degree decrease when I went from the compound included with the 212 to the NT-H1 that I had left over from the NH-C14. A second fan on the cooler decreased the temps again by another few degrees.
 
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jkteddy77

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Trust me, I've tried it all.
I have MX-2 thermal compund, which is 1-2C cooler than Arctic Silver, and I have the fans in Push pull config, both running 1400-2000 RPM, and I also have 6 other fans in the case, 3 intake in the front, and 3 exhaust in the back...

I shoulds be running much cooler should I not? or do I need a Noctua? MX-2 is on par with Noctua's TIM.
 
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dwatterworth

dwatterworth

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Metro is nearly as bad as running Prime95 as far as CPU and GPU abuse. It's an incredibly inefficient game engine, the developers saw Crysis Warhead and thought 'Yes, let me do that, but I think I'll do my coding in MSpaint'.

For an experiment, try rotating your hyper 212 90 degrees. From images I've seen I believe the 4790k package is more linear than square, you might hit more of the 'hot spot' with a different orientation. I just installed my own 4790k into a render node with noctua NH-C14 (it started life as a HTPC, now double duty), and I don't get over 60c in a fractal design node 605 case, the noctua only has (1) 140mm fan on it. There must be something else going on with your results.
 
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jkteddy77

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Yeah, it is a torture test, but many games I play are, and I don't know what I should do??? The Heatsink isn't even hot... but I have solid connection with the cpu? Haven't remounted it yet, but would it even make a difference? I used about the same amount of thermal paste as the OP... actually a little less.
 
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dwatterworth

dwatterworth

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You might try changing your core turbo ratios if all 4 will turbo at the 4.4 so that you only have 2 hit 4.4 or something. I'd definitely give reseating the heatsink a try as well. Do you have a spare 120mm fan that has decent static pressure that you could try running the cpu cooler in push/pull?
 
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jkteddy77

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Let me know how hot it gets, and what voltage your board has it set to. My Asus set me to 1.211v stock, and its still very hot.
I want to know how it handles intense games like Battlefield, Metro, Far Cry, etc
 
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