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[pcgamer] Intel tells Core i7-7700K owners to stop overclocking to avoid high temps - Page 10

post #91 of 264
Quote:
Originally Posted by guttheslayer View Post

You can still glue back the IHS after delidding and the temp is still great (there was a review for doing that using a 3rd party delidding kit), just superglue the 4 corners of the IHS to the chip and bam, done.


Cant believe Intel cant even do this simple job.

Thats what I did. I got the Rockit 88 deliding tool. And used a automotive RTV silicon to relid it, whole process took me about 2.5 hours, that includes letting the silicon cure some.
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post #92 of 264
Quote:
Originally Posted by rluker5 View Post

I had to reapply it to my 4770k about once a year. Usually after a bout of impulsive overclocking where I would go over 1.4v. I lost functionality of sli once, checked everything else, pulled the cpu and found a lot of the coolabs pro on the die looked dried. It was probably oxidized. I reapplied it and everything was good for another year when I lost use of a ram channel. Tried a bunch of stuff before checking that and clp turned to dust over a big part of my die again. This time it left a film that was tough to get off. I put it on real thin on both surfaces though since I'm worried about drips and that might have something to do with it.
Went back to regular tim after that and while my temps weren't as good as with the clp, they were still better than original. I use as5 because it seems to last forever. Tried mx-4 and all of the good stuff kept getting pushed out leaving only oil.


That means the liquid metal doesnt really last? Have to delid again just to reapply?
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post #93 of 264
Quote:
Originally Posted by guttheslayer View Post

That means the liquid metal doesnt really last? Have to delid again just to reapply?
Never glued the lid back down, just held it on with the bracket.

Edit: O2 could have come from that, thought about that but wanted to keep my options open. If I nabbed a N2 balloon from work, maybe I would glue it.
Edited by rluker5 - 5/5/17 at 7:48am
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post #94 of 264
Quote:
Originally Posted by Duality92 View Post

The factory GAP is the main issue. The one between the die and the IHS.

Yea correct, can't believe people still argue this. I guess the physics behind thermodynamics eludes them.
Quote:
Originally Posted by guttheslayer View Post

You can still glue back the IHS after delidding and the temp is still great (there was a review for doing that using a 3rd party delidding kit), just superglue the 4 corners of the IHS to the chip and bam, done.


Cant believe Intel cant even do this simple job.

Correct, but superglue isn't remotely as thick as rtv. I'm sure you can glue the IHS back on provided you add pressure to the IHS while it cures. People still fail to understand that between two layers of any material conducting heat you want no gap, in a perfect world you don't even want TIM, TIM is a piss poor heat conductor. Don't believe me? Compare copper at 300-400w/mK (yea thats right) to your best TIM that does 12w/mK and liquid metal that does 76 w/mK. Which one do you think conducts heat better? Air is a piss poor .024w/mK.

The more TIM you use the worse of it is, i tested this by using thick dried out hydronaut on my 1700x, temps shot up to 73°C instantly while my Noctua kept it at 68°C after 15mins, i didn't even let hydronaut run that long. You want the TIM to be a microscopic layer, you're filling in the gap between the center of the IHS and the center convex heatsink, the other parts of the IHS don't matter.

Heres the article in question. https://www.techpowerup.com/reviews/Intel/Delidding_the_Intel_Core_i7_7700K/4.html

The graphs are VERY telling BUT don't forget that this wasn't a full on test, he didn't try TIMs by reducing the gap and went straight to liquid metal which you can use as thick as you want and still functions at its rated w/mK.

ihs-pcb-thickness.pngthermal-performance.png

"These are absolutely massive decreases; 20.7 °C from the TIM swap and fresh batch of silicone glue and 24.4 °C from the TIM swap and super glue. By going with a drop of super glue at each corner instead of a layer of silicone glue in between, I reduced the distance between the CPU die and IHS and, thus, also reduced the heat-transfer distance, which aided heat transfer away from the die. So there are two variables at play here which both affect the internal heat transfer from the CPU die to the IHS, and you want to work on both for the best-possible results. Take these numbers as an indicator rather than absolutes as I am sure I could have achieved better results with the silicone glue run, and there is also no guarantee my liquid metal spread was consistent both times. Similarly, the measured thermal conductivity value for the Intel stock TIM was 3.1 W/mK. Note that this is more of an indication of where things are at, but it is not as bad as many would have you believe. Most stock TIM provided by manufacturers of coolers and waterblocks alike are in the 2-4 W/mK range as is. But Thermal Grizzly Conductonaut has an advertised thermal conductivity of 73 W/mK, and this is a big, big part of that 20+ °C drop in temperature."
Edited by bluej511 - 5/5/17 at 8:01am
    
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post #95 of 264
Quote:
Originally Posted by Duality92 View Post

The factory GAP is the main issue. The one between the die and the IHS.

Regardless of what you say. I buy a 7700k I do not delid like the 99.9999% of others. So for me and almost everyone else... The CPU runs hot.
post #96 of 264
Quote:
Originally Posted by budgetgamer120 View Post

Regardless of what you say. I buy a 7700k I do not delid like the 99.9999% of others. So for me and almost everyone else... The CPU runs hot.

The problem is that the heat get so out of hand now deliding is the only option left if you dunwan to risk fry your CPU.


Ever since Ivy bridge cpu just got hotter and hotter.
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post #97 of 264
Quote:
Originally Posted by BigTree View Post

There goes my warranty on my K processors.


kookoo.gif

Source

Intel forums

only explanation for this is the i7-7700k must be breaking down at an alarming rate (much higher then past chips). Remember, not long ago intel released a notice that extensive heat will lower the life of their chips to 1 year or lower. I think something is happening to their i7-7700k chips thats causing a cascade of early failures far outside the normal. Does this mean every i7-7700k will be junk in <1 year? no not at all. This just means they're probably seeing a MUCH HIGHER failure rate than with any other chip in the past. Without knowing what their normal failure rate is, we can't even guess how many chips this might be. It sounds like they're strengthening their position to prevent themselves from paying out warranty claims.

Unfortunately my buddy at intel has nothing for me about this. else i'd be happy to share. I expect their 14nm node isn't as supportive of high voltages and temps as past chips at larger processes were.
 
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post #98 of 264
So the options are:

Either you delid and void your warranty but your CPU ain't gonna fry itself thumb.gif

Or you don't delid and you keep your warranty (if you don't overclock) and there's still a chance the CPU is gonna fry itself.

Is this a joke?
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post #99 of 264
Quote:
Originally Posted by guttheslayer View Post

The problem is that the heat get so out of hand now deliding is the only option left if you dunwan to risk fry your CPU.


Ever since Ivy bridge cpu just got hotter and hotter.

Most people do not overclock either. So this is not a problem for majority I think.
post #100 of 264
Quote:
Originally Posted by Clukos View Post

So the options are:

Either you delid and void your warranty but your CPU ain't gonna fry itself thumb.gif

Or you don't delid and you keep your warranty (if you don't overclock) and there's still a chance the CPU is gonna fry itself.

Is this a joke?

If you got the cooling you're not worried about it frying itself just my opinion though.
Quote:
Originally Posted by budgetgamer120 View Post

Most people do not overclock either. So this is not a problem for majority I think.

Most people buying a 7700k will overclock unless they're buying premade. The people who don't overclock would buy the non k or an i5. Why buy an unlocked cpu and not overclock it. It's like buying a ferrari and driving 10mph EVERYWHERE lol. thumb.gif
    
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