Best thermal grease for repasting the 15R3 with?

I think the pea-sized teardrop method is the best when you've got a gap, someone correct me if I'm wrong.

Which is better? IC Diamond, Gelid GC-3 Extreme, Grizzly Kryonaut (can this be applied using teardrop method?), or this Shin-Etsu (X23-7762): http://www.frozencpu.com/products/1...J_Shin-Etsu_X23-7762.html?tl=g8c127s846#blank

It is 6.0 W/m K. Note what it says for the Shin-Etsu:

 

Hey there,

Before anyone comes here to flame....there are a lot of posts on Thermal Pastes in many of the threads.

Grizzly Kyronaut and/or Gelid Extreme.

 

I'm going to disagree with both of those recommendations. The issue seems to be due to a low pressure heatsink. Gelid Extreme and Kryonaut are thin and do not work the best in a low pressure environment. I would recommend Tuniq TX-4 6.5W /Mk and very viscous. Once I get my laptop I will be repasting if it's out of whack and will post before and after screenshots. I have had great results in several laptops/desktops that utilize low pressure heatsinks using TX-4. With TX-4 the best application method is a line and spread method.

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Yeah, if Microcenter had Tunix, I'd try that first, but since I need to do it by this weekend and they only have IC Diamond, I'm leaning towards going that way.

That said, I've seen a video on youtube:

Where this guy applies all the pastes using the pea drop method and it seems to work, even with Kryonaut. So I'm conflicted about trying Kryonaut or sticking with the thicker IC Diamond (where the manufacturer recommends pea-sized drop method).

 

As far as application goes, is it a bad idea to put a very thin layer of paste and then a drop in the middle on top of that? Just to make sure the corners get covered?

 

I would just use a pea sized drop. You don't want to little (not effective), or too much (insulation). Alternatively to the pea drop, I have seen people use an X pattern across the die (Two rice grains crossed). Since you are going to use ICD, I'd just recommend the pea drop. Just stick it by a light bulb for 10-15 minutes.

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I'd also go with the pea-sized drop in the middle. No need for the extra ultra-slim layer.

 

Perhaps fixing the issue would be more ideal than opting for a band-aid of using a thicker thermal paste.

Just because laptops are low pressure does not mean that the two recommended pastes are not good choices. Most that are experienced would agree with my recommendations when it comes to traditional pastes.

Have you seen this thread? There is a fix and it works.

I personally would not use Tuniq or ICD. To each his own.

 

All these methods crack me up. In reality they will all pretty much work the same.

The CPU die is tiny, kinda hard to mess up. As for the GPU die same thing...smiley face method, with two spins, back-flip and the hokey pokey is the preferred method.. A head and stomach tap simultaneously will drop a few more degrees.

There's just one simple rule of thumb: When repasting laptops, just be a little more generous with the paste...not a lot, but a little more than a desktop application.

 

Of course fixing the root cause is better than any band-aid fix out there. Yes, I have seen that page, and honestly I appreciate all the work you and the others did on this. Did you happen to take a picture of the contact pressure after flattening the 90° bend by the screw?

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@iunlock that would be really cool to see

 

Ah yes...let me dig that up. I've been traveling and will be over the holidays...

 

Hello , I wanted to ask ur personally coz ur super smart in this area I did buy grizzly kryonaut and copper shims and im going to apply them to the cpu although after reading much I think IC DIAMOND would have served me better so do u have any tips for me that I could use while repasting other than bending

 

I recommend to not use copper shims. That doesnt even out the gap and you can ruin the CPU die with it due to corners breaking off. Dont use it.

 

Oh.. but I didnt buy IC DIAMOND and theres none in my country ... how im gonna fix it I dont wanna order again and wait about 10 days

 

Iunlock said he could fix it by slightly bending the metal screw retainer slightly to create more pressure. not sure if it is possible but putting a few o rings between the screw and spring might create some extra pressure to cure that uneven pressure night work too.

 

This is actually the best idea I have heard so far I believe it would really do the trick ,, thanks for this smart idea <3

 

@iunlock do you have a before and after picture of how you bent that arm?

 

Bending it 90deg makes me think metal fatigue...

Any updates on how Dell is handling this?