i7-7700K @4.9GHz w/ NH-D15S (Delid + Liquid Metal)

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I figured the NH-D15S (w/ second fan) would be enough to keep it cool at 4.9GHz and 1.35V. The voltage is enough to run 4.9GHz, but temps go up to 87C within a few minutes of Prime95 Small FFTs.

Would an AiO do any better? It seems at this/that point, ~$450 would have been better spent on a better CPU and a budget cooler. I have not seen any significant advantage of 4.9GHz over 4.5GHz other than the personal satisfaction of doing it.

I just upgraded from my Cryorig H7. The NH-D15S gives the same temps at 4.7GHz as the H7 gives at 4.5GHz. All of this is seeming like a huge waste of money. Intel is taking away the overclocking experience by pushing their K series processors to their economical limit with their junk TIM.


**UPDATE**

Successful delid and Thermal Grizzly Conductonaut reduced temps by ~20C.

Achieved 5.0GHz 1.400V w/ max of 73C Prime95 (20 mins).

Screenshot: https://imgur.com/TUGAQ2Q
 
Solution
I got a wild hair and watched a video on delidding with a razor blade. It just looked too easy. So I did it. Razor blade, credit card (for removing silicon), 91% alcohol, NT-H1 thermal paste and it's 10-12C cooler.

Now, I used Noctua's thermal paste that came with my NH-D15S. What can I do to improve? Liquid metal? What about resealing the IHS with silicon or something?

I just decided to do this this afternoon and did it. Any tips appreciated.
 


Liquid metal!!!!

I don't bother with re-lid.
 


http://www.coollaboratory.com/product/coollaboratory-liquid-pro/

Yes because it consist 100% liquid metal alloy.
 


You can take it of.

Mask(SCOTCH TAPE) everything but the die when applying as thin of a layer as possible.

Liquid metal is a bit of a pita to spread evenly with the supplied brush, I used a q-tip.
 


I did. Amount of improvement will depend on cpus current TIM application and die to IHS gap. Closing this gap is why many do not relid.

Silicon lottery uses Grizzly Conductonaut, so they think its better.
 


But it still left marks and residues behind even after you wiped it with isopropyl alcohol. This is why you should only use liquid metal for delid not for apply on top of the CPU HS like typical thermal compound.
 


Are we not talking about delid, or can you just not admit that you are wrong?
 


https://www.youtube.com/watch?v=7H4ptevACfw skip to 8:18

https://www.youtube.com/watch?v=IIikmLf_H48 skip to 1:47

Not, I'm not wrong but rather you are the one without doing your homework.

Liquid metal only worth it if you are delid, if you are not just use a good non conductive thermal compound like MX-4 will do fine. Remember, your method apply thermal compound, cooler, and ambient temperature will affect your CPU temperature.



 


Jesus the manufacturer states that it can be removed.

Your WRONG PERIOD.

Take you bruised ego and parrot your misinformation somewhere else
 




Have you look at the second video? It can be remove but not 100% completely remove with isopropyl alcohol. Look at the second video and see it as yourself before spouting nonsense and false accusation.

https://www.youtube.com/watch?v=IIikmLf_H48 skip to 1:47


 




You stated that liquid metal is electrically conductive and so shouldn't ever be removed.

Proven wrong, Your now trying to walk back your misinformed opinion, by talking about nickel plated cpu cooler bases and discoloration/corrosion. This doesn't explain away why you think electrical conductivity means you can never remove Liquid metal after using it when deliding a cpu.

Once again we are talking about deliding a cpu. The liquid metal goes in between the IHS and the DIE.

You have a looked at what the Manufacturer says?

Do you know what a manufacturer is?

So how many delids do you have under your belt?

I have done 7. I've taken them back apart and put them back together and mercy me nothing bad happened.

And once again, http://www.coollaboratory.com/pdf/manual_liquid_pro_englisch.pdf

"Whether you will remove sometime the liquid metal of the cooler and/or CPU(for example before selling), just wipe it.Residues that aren ́t removable this way(solidified residues)will disposed with metal polish, as use for instance for cleaning chrome parts at the car"

 
Briefly scimming this, I didn't see anybody mention it but there was a lot, sorry if I missed it. The D15 will perform neck and neck with any AIO 240/280mm liquid solution if provided adequate airflow (talking about expelling heat from the case). At best you'd see less than 5C difference if you go with a 280mm AIO, not worth it. A custom loop however could provide better results, but then again I'd say that's not at all worth it... what are you even doing that benefits more than slightly from overclocking that chip that much?
 


I didn't say couldn't remove, I said " liquid metal thermal compound is very conductive, and once apply must never take it off." which is for delid procedure because of what happened to the video #2 showed, it will affect the temperature because it left stubborn residues behind. Once again, you're reading wrong and therefore deploy a false accusation on me. Re-read what I wrote because there's a different meaning between couldn't and must never take it off.

I met a lot of people that used liquid metal on delid CPU, and they say the same thing once you apply liquid metal onto the CPU die, it should not take it off.

Here is the post that I said

" coollaboratory liquid pro

liquid metal thermal compound is very conductive, and once apply must never take it off."

http://www.tomshardware.com/answers/id-3558641/7700k-9ghz-d15s.html#20390415

Just because it work for you doesn't mean it will work for others. A lot people suggest liquid metal onto the CPU die for better temperature than use as a regular thermal compound apply onto the HS.

 


Never, couldn't. Your still trying to side step.

It can be taken off, it can be reapplied. I have done it. The manufacturer says it can be done.

You are wrong.

AND again, http://www.coollaboratory.com/pdf/manual_liquid_pro_eng...

"Whether you will remove sometime the liquid metal of the cooler and/or CPU(for example before selling), just wipe it.Residues that aren ́t removable this way(solidified residues)will disposed with metal polish, as use for instance for cleaning chrome parts at the car"
 


Then explain on the video why there's residues left behind after wiping it off using isopropyl alcohol. There's a different meaning between must never take it off and couldn't, and yet you are the one try to side step not me. The manufacturer can say whatever it want, but the fact the video proven that liquid metal can left stubborn residues behind make it more difficult to get rid of it, and by re-apply it with previous thermal or liquid metal residues left behind will affects the CPU overall temperature. This is why a lot of people suggested using liquid metal on the die because once you apply it you shouldn't take it off and re-apply it again.

As matter of fact, this thread will say it was well: http://www.tomshardware.com/answers/id-3495322/thermal-paste-heat-sink-liquid-metal-delidding-thing.html

Best selected answer from that thread said : Liquid metal is really for situations where you don't intend to ever take it back apart, which is great for delidding. Between the IHS and heatsink, however, I'd use a high quality thermal paste of some sort. Be careful with liquid metal, it's really conductive and can ruin electronics if it gets into crevices it shouldn't be in

I'm done arguing with you because I already provided my facts and statements and I'll stand with it.


 


I see what the problem is, you believe everything you see on you-tube.

You should consider a career in politics.

You flat out called me a liar right in this very thread and when presented with proof(as good of proof as anyone on these forums can provide), you couldn't admit you were wrong.

You stated that because of electrical conductivity that LM must not be taken off(your opinion) Not what the manufacturer states and Not what I personally have experienced.

Once again you cannot admit you wrong. This along with your moniker( I think your subconscious was hard at work when you decided to use it) is telling to say the least.

 


A video proven is more worthy than a word proven because a single video can say thousand words. and you can't deny it. Plus, other experts also suggested as well. Only use liquid metal compound if you are delid, and don't intend take it off again. If not delid, use a good quality non conductive thermal compound.