This is the best thermal compound I have ever encountered.

[maxtch]

I encountered this thermal grease, AI Technology COOL-GREASE ZXM in SEMICON Shanghai 2020 and asked them for a sample to test with. It arrived a few days ago, and here is what I found out.

 

This thermal grease is rated for 20W/(K·m). And the manufacturer claims that this is a phase-change non-curing epoxy type thermal interface material.

 

The test system is my daily driver Hackintosh: i7-9700K on Gigabyte Z390 UD, under a Thermaltake 120mm AIO inside HuntKey S400 4U rack-mount case. The baseline was another free sample I got, with a nominal thermal conductivity of 4.5W/(K·m). That thermal grease gave my CPU a maximum turbo power of 125W. The ZXM, 190W. Correspondingly, under the same fresh-install open-rack condition, it gave me 3530 Cinebench R20 points over 3275. And it also maintains a much cooler idle temperature, even in a server rack with 14 spinning platters and a dual Xeon behemoth not far below.

 

I am benchmarking it again after a few weeks of continuous use.

[AngryBeaver]

2 hours ago, maxtch said:

I encountered this thermal grease, AI Technology COOL-GREASE ZXM in SEMICON Shanghai 2020 and asked them for a sample to test with. It arrived a few days ago, and here is what I found out.

 

This thermal grease is rated for 20W/(K·m). And the manufacturer claims that this is a phase-change non-curing epoxy type thermal interface material.

 

The test system is my daily driver Hackintosh: i7-9700K on Gigabyte Z390 UD, under a Thermaltake 120mm AIO inside HuntKey S400 4U rack-mount case. The baseline was another free sample I got, with a nominal thermal conductivity of 4.5W/(K·m). That thermal grease gave my CPU a maximum turbo power of 125W. The ZXM, 190W. Correspondingly, under the same fresh-install open-rack condition, it gave me 3530 Cinebench R20 points over 3275. And it also maintains a much cooler idle temperature, even in a server rack with 14 spinning platters and a dual Xeon behemoth not far below.

 

I am benchmarking it again after a few weeks of continuous use

I am skeptical to their claims. Look at something like Kryonaut which is only 12.5w/mk or artic Silver which is only 8.9 w/mk. The only TIM's that I know of that start to get to that level or higher are Liquid Metal and are also electrically conductive. I am not saying it isn't a good TIM, but most of the decent ones are within 1c of each other.

 

They are using 0.06ºC/W-sq.in as the measurement which for me atm is a pita to convert, but comes out anywhere between 2-5  w/mk

[Tostr4]

Phase change: Does that mean it goes from solid to liquid and back under load, or from liquid to gas. 

Or maybe this is just some commercial pseudo sience 'just slap it with the rest' addon?