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Is my NH-D14 Faulty? [nearly resolved]

post #1 of 103
Thread Starter 
This is what i sent to Noctua:
Quote:
I believe my NH-D14 is faulty because I got much higher temps than every review i looked at. I tried remounting it, but i got the exact same results. To test if it was faulty, i ran prime95 small FFTs for 1 hour with ambient temperature of 19*C(review i compared to was 18*C). I used my i7 2600K @ 4.9GHz 1.48V (the same voltage of the review i was comparing to) to run the test. To make it more like the review, i completely opened up my case(RV03) and unplugged its fans to make it more like a test bench. I recorded temperatures with RealTemp 3.67 and took the average of all the cores from the resulting .CSV file. My average core temperature was 83*C while in the review it was 78.71*C. The reviewer did mention that the result was from the third faulty NH-D14 they used in the review. The Silver Arrow was 69.06*C, so they expected the NH-D14 to be about 70*C. The link to the results from that review is here:
http://clunk.org.uk/reviews/high-per...1/Page-14.html
Although i ordered the NH-D14 on March 21, i did not received it until April 2 and i did not install it until i received my case which was on April 23. After installing the NH-D14 in my case, i posted my temperatures on a forum and i got feedback saying that my temps were higher than they should be. I looked at reviews and i became suspicious that my NH-D14 was faulty. Then on May 5 i decided to test my NH-D14 and compare my results to the linked review.
Therefore, please provide a refund or replacement. Thank you.

Some things i forgot to mention to them are:
I ran RealTemp sensor test with stock clock speed and the stock Intel heatsink.I got 60*C on my highest core. I then installed the NH-D14 and ran the same test and got 50*C on my highest core. That is when i first became suspicious. I used the included TIM and followed the included instructions.
My fans were running with the include Y splitter and through my mobo software i found that they were running at above 1200RPM through the entire test.

Noctua then replied:
Quote:
CPU temperatures are hard to predict, because they depend on many factors like ambient temperature, actual cpu used and case ventilation. Since your CPU is heavily overclocked and you are using a high vcore your CPU temperatures are well within the expected range. In my opinion an open case with the case fans disconnected does not resemble an open test bed, but this should not have that much of an impact on your CPU temperatures. As far as I can tell you should be fine with your configuration as long as your PC remains stable.
So what do you think? Do i have a faulty NH-D14 or do i need to do more tests and provide more information.

Extra info from testing:
http://www.overclock.net/air-cooling...l#post13508177

Extra extra info from testing:
http://www.overclock.net/air-cooling...l#post13581897

Most recent test:
http://www.overclock.net/air-cooling...l#post13679373

Latest Noctua response:
Quote:
As far as I can tell from looking at the pictures your heatsink it looks normal. You can always see a small gap because of the heatpipe bends, but this is not a problem as the pipes are soldered to the base. Please check your CPU temperatures at full load when using a tool like "prime95" we will then confirm if your results are alright.
This should be the last test i need to do for this to be completely resolved.
Edited by nawon72 - 6/9/11 at 11:40pm
post #2 of 103
What thermal cmpd are you using?
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post #3 of 103
Quote:
Originally Posted by joemaniaci View Post
What thermal cmpd are you using?
This. It could be how you're applying your thermal compound or your compound for that matter. It could also be your settings, such as a high LLC or fans undervolted.
post #4 of 103
Thread Starter 
Quote:
Originally Posted by 7ranslucen7 View Post
This. It could be how you're applying your thermal compound or your compound for that matter. It could also be your settings, such as a high LLC or fans undervolted.
I followed Noctua's instructions for applying the TIM and used the included compound. I used the extreme setting on my mobo for LLC(100% i believe) and i dont think i did anything to change the voltage of my fans. My fans were running with the include Y splitter and through my mobo software i found that they were running at above 1200RPM through the entire test. The fans usually run at 1260RPM.
post #5 of 103
have you tried a reseat or two with different TIM applications yet?
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post #6 of 103
I've got similar performance from my NH-D14, with temps somewhat higher because I've got an i7 950 (Say 84C max at 1.31vcore, 4.2GHz, making it 62C Delta!). And I've reseated it over 20 times now with different TIM techniques just to eliminate error. I felt like I got a defective one so I also sent an email to Noctua; got the same response as you: "well within the expected range".

Defective NH-D14s, or perhaps less effective ones, definitely seem to exist.

With the hot summer approaching I might just get a loop. Or a Silver Arrow.
post #7 of 103
Thread Starter 
Quote:
Originally Posted by joelmartinez View Post
have you tried a reseat or two with different TIM applications yet?
I only have one kind of TIM which is the included one. And i did try to reseat, but it gave me the exact same temps.
Quote:
Originally Posted by Mumbles37 View Post
I've got similar performance from my NH-D14, with temps somewhat higher because I've got an i7 950 (Say 84C max at 1.31vcore, 4.2GHz, making it 62C Delta!). And I've reseated it over 20 times now with different TIM techniques just to eliminate error. I felt like I got a defective one so I also sent an email to Noctua; got the same response as you: "well within the expected range".

Defective NH-D14s, or perhaps less effective ones, definitely seem to exist.

With the hot summer approaching I might just get a loop. Or a Silver Arrow.
I hope mine isn't "less effective" otherwise ill be pissed off that i got a $9/*C heatsink. That money could have gone toward the SSD ill be getting. And my stock cooler would work just fine at 4.6GHz because of my Silverstone Raven 3.
Edited by nawon72 - 5/11/11 at 5:49pm
post #8 of 103
Quote:
I only have one kind of TIM which is the included one. And i did try to reseat, but it gave me the exact same temps.
That is not what I mean. I mean try different applications other than the one Noctua's website suggest like X or / or // or ~ or *
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post #9 of 103
Thread Starter 
Quote:
Originally Posted by joelmartinez View Post
That is not what I mean. I mean try different applications other than the one Noctua's website suggest like X or / or // or ~ or *
What are these two called:
Quote:
~ or *
post #10 of 103
Have you felt all the heatpipes when it is running?
If you get something like "hot, hot, hot, cold, hot, hot", you may have cracked heatpipe.
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