Intel Core i7-7700K Delidded, Reapplied TIM Reduces Temps By 30C

[hat]

@peche he says he's running a 1GHz overclock at 1.5v... that kind of speed/voltage is what makes me think his cooler just isn't up to it. His cooler, while miles better than the stock cooler, is still rather basic.

 

[thesmokingman]

I'm with Hat, here... What sense does it make to delid ANY cpu without a decent cooler?

Who implied that you wouldn't already be using decent cooling? This is a created point to deny the thread topic.

 

[nomdeplume]

I think we all know delidding the i3 is step one in the experiment. An important one to make sure works before buying a new cooler.

 

[Papahyooie]

Who implied that you wouldn't already be using decent cooling? This is a created point to deny the thread topic.

There are at least two pages worth of people talking about delidding with a stock cooler. I'm not trying to "deny the thread topic" at all. I'm just discussing what others have. It's kind of a tangent to the thread topic, sure.

 

[peche]

@peche he says he's running a 1GHz overclock at 1.5v... that kind of speed/voltage is what makes me think his cooler just isn't up to it. His cooler, while miles better than the stock cooler, is still rather basic.

Overclocked i3?
if its stock cooler might be not enough bro,

I think we all know delidding the i3 is step one in the experiment. An important one to make sure works before buying a new cooler.

well i do support delid on i7's which are the most delidded units i ever seen, also some i5's that are insanely OC'ed, i3 im afraid that have never heard, but great! being the 1st !

There are at least two pages worth of people talking about delidding with a stock cooler. I'm not trying to "deny the thread topic" at all. I'm just discussing what others have. It's kind of a tangent to the thread topic, sure.

i have a known scenario were the owner wasn't able to get a decent cooler for a 4770 non K that was overheating or something but delid offered him a quite decent temp drops for this workstation, now still running delidded with stock cooler and temps are under 80c at heavy load or max load! idles at 50c ! thats quite great!
The purpose of delid its also to give a help, replacing the crap intel puts under IHS,


Regards,

 

[Papahyooie]

i have a known scenario were the owner wasn't able to get a decent cooler for a 4770 non K that was overheating or something but delid offered him a quite decent temp drops for this workstation, now still running delidded with stock cooler and temps are under 80c at heavy load or max load! idles at 50c ! thats quite great!
The purpose of delid its also to give a help, replacing the crap intel puts under IHS,

That's an extremely rare case. In that case I suppose it was because the TIM underneath the heat spreader was bad, not fully contacting, etc. Something was "wrong" with that chip. I don't know if Intel or anybody does RMA's for overheating issues, but if they do, that would be the way to go in that case, rather than delidding and chance destroying the chip.

So I guess I have to qualify my statement... There is no reason to delid a chip on stock cooling IF everything is working the way it is supposed to.

 

[Kursah]

I have RMA'd Intel CPU's because if heat issues. I RMA'd an E8600 that would hit 100C+ at stock speeds under a Xig on 3 different boards and a 4770K that would throttle at stock speeds under a Noctua tower cooler as the recent ones that come to mind.

There's also the Intel Performance Tuning plan that you can pay for and is relatively cheap, and is an overclocker's warranty on K-series CPU's which have a voided warranty if you OC a K-series CPU. So it is a good piece of mind that goes along with the standard 3-year warranty. This is a no-questions asked warranty as-long-as you don't physically modify the CPU in any way...overclocking is fine, over voltage, etc...but don't delid or both warranties are done.

 

[peche]

That's an extremely rare case. In that case I suppose it was because the TIM underneath the heat spreader was bad, not fully contacting, etc. Something was "wrong" with that chip. I don't know if Intel or anybody does RMA's for overheating issues, but if they do, that would be the way to go in that case, rather than delidding and chance destroying the chip.

So I guess I have to qualify my statement... There is no reason to delid a chip on stock cooling IF everything is working the way it is supposed to.

shit happens... or maybe not all the reason are as dumb as they seem to be...

Regards,

 

[phanbuey]

I have RMA'd Intel CPU's because if heat issues. I RMA'd an E8600 that would hit 100C+ at stock speeds under a Xig on 3 different boards and a 4770K that would throttle at stock speeds under a Noctua tower cooler as the recent ones that come to mind.

There's also the Intel Performance Tuning plan that you can pay for and is relatively cheap, and is an overclocker's warranty on K-series CPU's which have a voided warranty if you OC a K-series CPU. So it is a good piece of mind that goes along with the standard 3-year warranty. This is a no-questions asked warranty as-long-as you don't physically modify the CPU in any way...overclocking is fine, over voltage, etc...but don't delid or both warranties are done.

I had an e8300 that did that, the delid helped a lot, but it still ran in the 90's - for many many years..

I think the temp sensors on those were a bit wonky, and if I remember you could apply an offset in the bios to tweak them.

If my chip is not defective, and I have not hit max stable OC and temps are an issue, then I will for sure delid.

I used to hit 95 - 100C at 4.77 Ghz on the 6700k, and now its sitting at 85C max load linx for a few hours.

The delid gives that extra performance bump; otherwise I would be sitting at 4.5

 

[hat]

I think the K series CPUs should already come with that warranty. Seriously, who buys a K CPU and doesn't overclock it? That's the whole point of buying that CPU.

 

[P4-630]

Seriously, who buys a K CPU and doesn't overclock it?

People that look at the highest stock clock speeds.

 

[peche]

+1

People that look at the highest stock clock speeds.

 

[Kursah]

I think the K series CPUs should already come with that warranty. Seriously, who buys a K CPU and doesn't overclock it? That's the whole point of buying that CPU.

For you or me sure...but there's more than just that out there and different perspectives that need to be accounted for outside of the box. Thinking outside the realm of TPU, overclockers, tuners, etc...these K-series chips are in A LOT of systems where they never do anything beyond default, never go faster, hell many never see linked max multi at default clocks that allows all 4 cores to operate at 100% stock turbo speeds. That's just the reality of it. There are many cases where the non-K would've done just fine though and while I may try to sway people that way...when the price is close and the CPU is that much faster...that's all they see and want.

I've sold dozens of K-series because folks want the fastest CPU but have no interest in overclocking. Guess what the K-chips offer? Exactly that in the mainstream consumer market.

Even going from the top i7 Haswell to i7 DC was an option for some that "had to have the faster CPU", going from a 4.0GHz turbo on the 4770K to 4.4GHz turbo on 4790K without doing more than swapping CPU's. It makes a difference for some folks, probably more-so in their specs but for some instances where that extra 400MHz can get their processing tasks accomplished faster...though really I try to push those guys to Intel's HEDT line, most folks would rather go with a main-line K-chip.

I see it in the same way though, I wouldn't personally buy a K-series CPU unless I intended to overclock...or in my case buy a used one that is known to run hot and thus not very OC-able to run in my server at stock clocks and undervolted. It is still waiting to be delidded though.

Intel won't budge on the warranty, and they don't have to. I don't agree with their standing on it...and do agree that K chips should have the overclocking warranty, for $25-30 it was still a damn good piece of mind...and to pay that for a "no question's asked RMA" is worth it to me.

 

[phanbuey]

I give intel some credit in the sense that the K series is essentially what the unlocked X series used to be back in the day... ie. Q6600 ($500) vs QX6700 / X6800 ($999)... the current 7700K goes for $350 and hits 5Ghz on a decent OC with an unlocked multiplier; comparatively speaking the K series chips are pretty cheap for what we used to pay for back in the day for that type of luxury. Granted, the overclocks are not as high as they used to be, but 5Ghz is still pretty sweet.

 

[P4-630]

Hardware.Info overclocked Core i7 7700K to 6.5 GHz with LN2 with ALL cores active

Translated with google translate:
https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=https://nl.hardware.info/nieuws/50855/hardwareinfo-overklokt-core-i7-7700k-naar-65-ghz-met-ln2&edit-text=&act=url

Original
https://nl.hardware.info/nieuws/50855/hardwareinfo-overklokt-core-i7-7700k-naar-65-ghz-met-ln2

 

[EarthDog]

They've already hit 7GHz..

 

[R-T-B]

They've already hit 7GHz..

with all cores active?

 

[EarthDog]

No... but I see NOW, that isn't his point.. he started a thread as well as this post here.

 

[damric]

Preliminary data.

Before delid:

Ambient: 18.3C (Open Air Test Bench)
TPC-612 with TX-4

i3-6100 @4602MHz @1.488v (CPU-Z)

Idle: 28C
AIDA64: 52C
3DMark11 Physics: 75C
Kombustor CPU Burner: 83C
Cinebench R15 Multi: 83C

 

[damric]

It lives!

I was worried as I saw some shiny traces exposed on two places on the plastic, but it booted up fine and here I am typing.

It took less than 5 minutes to razor knife the heat spreader, much more time just turning screw, cleaning and applying new TIM, ect.

Eww the TIM under the lid was that hard bubblegum TIM, like dried out waxy clay.

Replaced with MX-4 because that's what I had on hand.

So far IDLE temps look same. About to run the same stress tests and then I'll be back with the results.

 

[peche]

It lives!

I was worried as I saw some shiny traces exposed on two places on the plastic, but it booted up fine and here I am typing.

It took less than 5 minutes to razor knife the heat spreader, much more time just turning screw, cleaning and applying new TIM, ect.

Eww the TIM under the lid was that hard bubblegum TIM, like dried out waxy clay.

Replaced with MX-4 because that's what I had on hand.

So far IDLE temps look same. About to run the same stress tests and then I'll be back with the results.

Delidded i3 ?
best results with liquid metal between Die and IHs....

 

[damric]

Delidded i3 ?
best results with liquid metal between Die and IHs....

I agree. I should have waited and ordered some liquid metal. This light weight grease (MX-4) is worse than the stock TIM.

Results:

Ambient 18.3C Same

Idle: 28C Same

AIDA64: 62C worse by +10C

3DMark11 Physics: 82C worse by +7C

I'm not even going to risk running the other two tests.

Conclusion: It's possible that the MX-4 needed some burn-in time. Next time will be a liquid metal test. Intel stock bubble gum TIM certainly doesn't look bad though, so I'd say this is not worth the effort and risk. I did this for fun, and in the name of science and breaking stuff. I do not regret my testing thus far.

I would have preferred to do a naked delid, but my cooler would not make contact with the CPU die when I tried it, even after removing additional locking mechanisms from motherboard, so blah...

 

[yotano211]

Your friend probably isn't pushing nearly 1.5v and a 1GHz OC.

How are you even overclocking on a locked processor.

 

[damric]

How are you even overclocking on a locked processor.

Cuz I'm old school and I learned how to overclock before Black Editions and K series SKUs

 

[nomdeplume]

This is great. I look forward to liquid metal results.