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Comment by SloopJon

3 days ago

This video is by the owner of Thermal Grizzly. They make thermal pastes and putties, but I think they're best known for their KryoSheet graphene pads.

Although I've never been conscious of pump out as a problem, and have never reapplied thermal paste, I did use a KryoSheet on a 9800X3D in my most recent build. So far, so good.

I built a PC in 2019 with a graphene pad. I have been too lazy to check its integrity. I rely on the lack of airplane sounds coming from my tower as indication it's working

They also make Liquid Metal themselves. Pretty sure that’s a substantial part of their business actually…

  • And they talk in the video about how expensive it is now, because of gallium export restrictions in China, and that people shouldn't be using it because it's not cost effective. Only the most hardcore of overclockers should even do it.

    But it was a very informative video regardless.

    • For what it’s worth isn’t liquid metal actually not very good for extreme overclocking seeing as it solidifies at subzero temps?

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They also sell liquid metal under the conductonaut line.

I thought ptm was all the rage anyway as it can't pump out and is very very long lasting, but I'm probably outdated in that respect.

  • If you can get real Honeywell or Laird phase change TIM, they are well proven in long service interval industrial applications. I personally run a Laird 7000 series PCM on my 5800X3D as well as my laptop which originally had Liquid Metal.

  • PTM is still all the rage, but liquid metal is more marketable.

    Of the latest gen of AMD GPUs, a bunch used PTM.

> Although I've never been conscious of pump out as a problem, and have never reapplied thermal paste,

I’ve had problems with both pump out and other thermal paste aging problems.

The problem is very different across thermal pastes. Some of the high performance enthusiast market pastes I’ve used have started out great and then degraded until I was having problems a few years later.

My feeling is that the engineers and OEMs understand these tradeoffs better than the hobby market. All of those boring pastes that came in OEM configurations but underperformed the latest $20 tube you could buy in the aftermarket were just making different tradeoffs.

The newer pastes have been better for me so far. The person who made this video also does some testing that’s supposed to simulate pump-out and maintains a database of pastes which has been helpful to finally have after all these years of relying on forum anecdotes for everything.

  • > My feeling is that the engineers and OEMs understand these tradeoffs better than the hobby market. All of those boring pastes that came in OEM configurations but underperformed the latest $20 tube you could buy in the aftermarket were just making different tradeoffs

    For example, if a consumer is going to periodically (or ever) replace / upgrade their thermal paste, they can get a bump in performance. The consumer that's never going to do that is better server by paste that has slightly lower performance, but lasts much longer.

I've been meaning to get one of these, as I was looking to make a liquid cooling dock, so I can't have an interface that adheres to any of the sides.

Does it really simply not stick and is held in place by pressure alone?

  • It definitely slides around. The package I got included silicone oil to anchor it with a drop in the center.