Warning: Some i7-6820HKs and i7-6700HQ have Uneven Core Temps due to Uneven Heatsink

The good news is all the people in the GT62 thread with issues solved the problem by repasting. Our heat sink has four screws, not like the AW. If a game throttle I will attack the issue with Gelid. I heard Gelid viscosity is higher than the other stuff that was recommended.

 

Even with 4 screws, the typical orientation, improper assembly will lift one side while making the other too tight. Even slow fastening in small increments of the screws in sequence is the best way to get even coverage.

It will be fun

 

Hopefully my games do not throttle lol. I only do blizzard games so it wont throttle for a while lol.

 

And, that's the problem with a 9c core temperature differential, your CPU will throttle 9c sooner triggered by the 2 hot cores.

If all cores were as cool as the coolest cores you could power through much further to higher performance, or longer sustained operations.

Hopefully a removal and reapplication of the heatsink with proper assembly will solve the core differential for you.

 

Man how long does Grizzly K. last? Do we have anybody that has used this for a long period of time? Somebody in amazon posted Gelid dried in a single month.

 

They can all dry out quickly if there is a "lift" to an edge exposing the paste to the air - it "wicks" out the moisture.

I try to make a thin covering with a card, then "trim" the edge all the way around the CPU / GPU so that when it squishes it doesn't ooze out along the seam, exposing it to air.

It's a technique that once perfected can give you 10 years + of use. I've got 2 systems in that range with AS5 back from 2006/2007, still running at low temps, right now this AMD 9950 Black is running at 38c during the hottest time of the day in the summer - 79F ambient. Usually at night it's at 32c idle.

But, if you have a lot of air exposure it can be days or weeks before a paste will suffer from thermal transfer issues - fissures' open up along the face and gaps create lack of thermal transfer.

Keep it clean, wipe off excess you can reach, try to use minimal paste for full coverage. It's hard to do this with the "pea" or X method, they don't cover completely or evenly without gishing out the edges.

Also important, press heatplate / assembly evenly such that you don't press out all the paste on one side when tightening the other. Once it's placed onto the CPU / GPU, put all screws in 1/2 turn to keep them in, then apply 1/4 turn on each screw in sequence that seems right to get even tightening, and keep that up until tight all around.

I'd say 6 months to 1 year between repastes for average reports for most pastes, a little longer if they stretch the temp increases.

Get a good base reading before re-pasting on idle, average use, and heavy load. Then do it again right after re-pasting, and again a few days later after paste has a chance to "cure". AS5 needed almost 7 days for lowest reading.

Then watch it every so often, don't obsess over it, after the first month if it's the same or lower then forget about it until you notice throttling

And, above all else, keep it fun

 

Cool thanks. Grizzly paste is 12 dollars foe 1 gram, a bit expensive but if it is really the best, I will go for it.

 

You could do what Intel does, use Crest Toothpaste, but it's hard to find it in a 1 gram tube, the travel tube does well in a pinch. Plain, not Sparkle's, the grit is conductive

 

Are you trolling?

https://www.amazon.com/Thermal-Griz...=UTF8&qid=1499475926&sr=8-2&keywords=Kryonaut

This would be $115 dollars if it was $12 for 1 gram...

 

I saw this

https://www.amazon.com/gp/aw/d/B011...y+kryonaut&dpPl=1&dpID=41IkGIpkjtL&ref=plSrch


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Yes I saw that too and that's a complete ripoff.
Why would anyone buy 1 gram when you can get 10 times as much for 3 times the price?

 

Ugh kinda scared of doing this on a laptop although I do this easily in a desktop lol.


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What laptop? it's easier and faster to repaste a MSI laptop than it is my *desktop* with a Corsair 760T case.....
The only precaution you need is to unplug the battery cable AND the ac adapter. Otherwise its no harder than repasting a video card.

 

Or use Basiron Gel as I tested Work wonders bruh



But better with Liquid metal.



2C degrees difference Damn, I need to re-done the job

 

That image is a perfect example of the "fissures" that open up when paste dries out. When there is an air contact and the paste "wicks" out. Nice photo

 

Thermal Grizzly Kryonaut Thermal Grease Paste - 1.0 Gram - $11.99
https://www.amazon.com/gp/product/B011F7W3LU/ref=s9_acsd_hps_bw_c_x_1_w

It's a waste to buy more if it's just gonna sit there and dry up unused

 

Yeah, I wouldn't let Liquid metal flow down from the IHS like this But very thin watery cream as I tested with is great when you need to check the pressure/fit after lapping Pressure tape is damn expencive and not always easy to obtain all places. Use what you have and its a damn good solution.

 

Is Grizzly K. that much better than Gelid extreme? I am thinking about using gelid.


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Probably 1 or 2 degrees C better. Kyronaut probably will hold its temperature better than Gelid. I'm happy with it.
You can get a 11.1 gram tube for much cheaper per gram than 1 gram.

https://www.amazon.com/gp/product/B00ZJS8Q6S/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

 

HI everyone,

First time here and first post. I would like to give my two cents as I now own an Alienware R4 17. As I never had the opportunity to have a gaming laptop till now, i went ahead and got an ASUS ROG GL702VS from Bestbuy, as it was on sale for 1399, from 1699, so I thought a got a great deal. But as I was playing for two weeks or so, I realized this laptop had serious temp issues and poor airflow design. My temps would regulary hit 93-95c and the top of the laptop was burn to touch. As doing more research as I should have done, the issues was poor airflow design from ASUS on the bottom of the laptop as there hardly any airflow vents to be let in. Many users complained about this issues and went ahead and actually would make modifications to their bottom housing such as drilling holes and drilling slits, and I found that ridiculous as this should have been addressed by the vendor through QA control...so I went ahead and returned it cause I was still under my return policy.

So I went ahead and found the Alienware model that was displayed in store, with the i7 7700hq...but when I purchase mine, it was as clearance with the 6700hq I7 version. I was very worried as I know I have had bad history with Dell and there products with being either cheap or lacking design; that I might have to repast it myself before doing some cpu temp results and game-play live results. As I looked into mine, mine was one of the original batches I believed that came out in August 2016, hence the clearance price now.

I have to say after a couple of days of playing for about an hour each load and idle working like surfing the web and video streaming; I got a steal and one of the lucky ones. I heard somewhere that Alienware might do better quality control check with retail vendors as they do not want customers to return the device back if in case there are some issues, hence loosing money with each return. Anyhow this was just a theory...but let me continue.

My alienware r4 17 is gtx 1070 model with 16gigs and a i7 6700hq and got it for 1200; brand new...im not sure if this was collecting dust or just hidden in the back.

Well after gaming BF1 and playing on Ultra setting my temps never spiked over 81C stock paste. Idle temps range from 41-45-50c and gaming with BF1 and Doom, no higher than 82C with fans kicking in as they should. I was planning to do a full repasting but decided not to as these for me as a tolerable temps. So there is a lottery when purchasing these laptops and doing your research deligently is best. I do have two year warranty with this through Bestbuy but I figured I will do repasting myself if it does come to this.

As I tell anyone, I like alienware and dont be afraid to purchase as you know what your getting into and understand that there might be chances of issues but that why I usually try to purchase through a retail store, knowing I can return it full price.

 

Today is the day!

 

Ahh!!! 7C difference now. Should I go for round two? Ugh Running prime95 small fft.

Edit: Holy **** temps not hitting 80c lol


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Put load on Gpu simultaneous. I'm sure you will see increased temp and bigger temp difference between the cores. Remember Shared pipes. Use Heaven and not Furmark.

 

Will do. I do notice the HS is slightly elevated on the right side where the thermal pads are.

 

Tried, stayed at 5-7C difference all the way until 88C on cpu and 79 on gpu and I turn it off.


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Ugh should I repaste one more time? I do have a lot of gc extreme left lol.


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Are you running DEFAULT prime without AVX and FMT instructions disabled?
If you are, then no, you don't need to repaste. That's about what you would expect if AVX is enabled.
If you disabled AVX and FMT (read undoc.txt to find out how and copy the values for it to local.txt, like 3 lines total), then yes you need to repaste.
Disabling AVX And FMT will drop prime temps by over 10C.

 

I am running default prime no changes. So is the 7C temp differential acceptable?

 

Put Aida64 as the guide and run it 30 min and post temp and results with pict.

 

I was running prime95 latest version and Heaven at the same time. Lol is Aida heavier than that?


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Not exactly, but you killed the test before temp increased. P95 is a bit heavier and Aida64 setup like this is better for prolonged testing.

 

I killed it since prochot is set to 88C on gt62vr.


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I will repaste one more time tonight. I think i will put a bit more on the cpu and pay more attention when tighting the screws since now I know more about this laptop.


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You can disable BD PROCHOT with ThrottleStop.

 

Does not let me. I can disable BD Prochot but not prochot.


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Oh'well, the ODM crippled the machine with cancer firmware. Not nice!! Still, if you want test it and post the results with pict.

 

Yup, tonight after one more repaste.

Is there a cure time for gc extreme?

 

Should work once you have repaste.

 

Ten minutes so far. Auto fan. Prime small fft running as well btw. Brutal.

 

And blue screen lol. I am wondering if it is my voltage hmmm. When I run these two benches separately everything is fine but together it throws bsod after a while.


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Don't use auto fan. Use the cooler boost and put the fans at 100%. You're running prime, not aida64 or something normal....
And what computer is that? a GT62VR? Those temps are absurd.
When I had a GT72VR with a 7700HQ, undervolted at -150mv, I ran prime at 3.4 ghz on all cores, small FFT AVX (I think that's FMA3) and temps never passed 75C (fans were at 100%). And that was on stock paste.

 

I am running this with Unigine Heaven. The heat transfer is real. And yes, gt62vr.

 

Undervolt back to -150mv since running both test simultaneously is giving me issues. Turbo fan on now.

 

Wow I just looked at disassembly pictures. That has got to be a major pain, looks like one of the heatpipes is connected to both the CPU and GPU (on GT72VR, the CPU and GPU have fully separate heatpipes), so removing one requires repasting both CPU and GPU. Also the wifi card is underneath a heatpipe....what.....

still if you were not running Heaven at the same time as Prime, temps should not be even in the 80s...

 

15 minutes now, running both benches.


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Without heaven I am in the 69-73 range in prime.

And yes, pain in the ass lol repasting since I have to repaste both.


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NVM saw your new edit.
That's a lot more what I was expecting.

 

Anyways, looks like I cannot remove this temp difference on this cpu, repasted three times. Third time I used a lot of paste and still same. Since the heat sink on the cpu has spring loaded screws, it will always stop at the same position. Maybe I should go for ICD hmmm. All my games are running much cooler though lol


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With that much of a difference, there is something physical in the way of completely seating onto the CPU - you mentioned the thermal tape, maybe try removing it, or replacing it with something thinner to get a better seating of the heatplate on the CPU.

That's what you are looking for, a solid pressure across the whole CPU with the heatplate.

ICD and Kryonaut should do about the same filling the gap, but there is more to it than that with such a gap, the pressure isn't there even if the thermal contact is with the thicker paste.

You maybe need to swap it for another one, or RMA it. Maybe the vendor can get a better fitting plate.

7c is bad, but it's not that bad, 10c is an automatic swap with Intel for desktop CPU's, but with the mobile CPU being bare it's not the same, it's all on the laptop maker.

 

Not a good idea removing the pads bruh. Replace them with some softer quality pads in correct size. I don't think this massive HS is equal ****y as the AW TRIPOD.