• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

The Official Thermal Interface Material thread

Borc said:
Halnziye HY-P17 is insane....up to 6.8 W/mK. No other paste comes close to this, big surprise.



www.igorslab.de

Halnziye HY-P17 Thermal Paste Review - High-flyer or far too good to be true? | igor´sLAB

When I tested the Halnziye HY-P17 for the first time, my jaw almost dropped. The performance delivered by this thermal compound is simply brutal and anything but what you would have expected from this…
www.igorslab.de www.igorslab.de
Click to expand...

My concern is about the two metal to paste interfaces, where a significant temperature drop may be present and this is independent of the thermal conductivity.
 
Last edited:
sneekypeet said:
I guess I'm jaded considering how long mx4 has been around, and everyone makes these huge claims ( manufacturers as everyone) yet here we are so long later, and we are talking about a degree or so from top-tier to average lower cost solutions. To me it is all a money grab till you go sub-ambient.
Click to expand...
Yup, if I look at that list of you in post #1,733 the variations are minimal; idle from 42.8 to 44.8 a mere 2 degrees Celsius and under load 68.1 to 69.1 'just' 1 degree Celsius between the worst and best performing TIM.

Makes one wonder why sometimes there are such hefty reactions in this thread on opinions about product A or B :kookoo:.
It's not like finally a super conductor material has made it to become a commercially available (and affordable) TIM, that would be IMO a game changer.

Untill then it is still fun to monitor this thread and see how many different people form soo many different opinions from their personal perspective and experiences ;).

And the wisest lesson; don't believe marketing promises, all TIM manufacterers are there to make money on the product. If they have to twist the thruth a little for you to spend some money on their product instead of the competition, most of them don't hesitate :twitch: .
 
Noci said:
'just' 1 degree Celsius between the worst and best performing TIM.
Click to expand...

I agree 'much ado about nothing' or rather too much concern on a °C difference and not enough on durability.

For a cooler running machine, I put some money into case fans.
 
Last edited:
On a side note, I received the Thermal Grizzly "TG Spatula Pro". To sum up my review of it, don't waste your money. The handle is way too short and awkward, the spatula only has ONE feature to "help" with paste spreading aside from being flat - one front corner is rounded. There is NOTHING on the smoothing surface to assist with providing a uniform spread. The injection molding wasn't even done that well. Very disappointing. I have no way to ask Roman directly about it but I have to question why a 3-pack exists and why it's $9.
 
Last edited:
best TIM for direct-die high-powered applications (GPUs, mostly) is PTM7950. Not the best for things with an IHS where the Tcase won't get above 70C.
 
AntiX3DGlazer said:
best TIM for direct-die high-powered applications (GPUs, mostly) is PTM7950. Not the best for things with an IHS where the Tcase won't get above 70C.
Click to expand...
If I'm not mistaken, doesn't PTM-7950 also need higher pressure?
 
TPCEA said:
If I'm not mistaken, doesn't PTM-7950 also need higher pressure?
Click to expand...
Not really, but it does need a 0.5mm or smaller gap for sure just because thats its thickness. I'm using it on an Intel X540-T1 10gbps NIC with very weak bond pressure fine. Stopped it from throttling as it did with the original mummified Dow Corning paste.

Higher pressure might improve its performance mind (thinner bondline is good) but it isn't strictly needed.
 
Octopuss said:
lol I have just noticed the shipping cost for UTP-8 is in the range of ten times as much as the stuff itself. WTF?
Click to expand...
Ok this is still true.
Can anyone from the U.S. check what the shipping cost is for https://www.aliexpress.com/item/1005006474255607.html ? For me it's 621Kč, which is about $30 equivalent.
Meanwhile, the same store has 1/10 of the shipping cost attached to the PCM-1 pads.
Just WTF?
 
Octopuss said:
Can anyone from the U.S. check what the shipping cost is for https://www.aliexpress.com/item/1005006474255607.html ? For me it's 621Kč, which is about $30 equivalent.
Click to expand...
For us it's worse: UPS $86 shipping. DHL $101. I suspect they're not selling much of that stuff.
UTP8-Shipping.jpg
 
But it makes no sense. Why would they have the usual Ali-like shipping cost for everything and then slap something totally ridiculous on one product?
 
lexluthermiester said:
You'd have to ask them. I found one with free shipping.
https://www.aliexpress.us/item/3256806287635978.html
What does that one show you?

EDIT: There's also this one with $6 shipping

Do either of those work for you?
Click to expand...
lol, 1276 and 933CZK respectively.
What the hell is going on :D

But this one shows as free for me: https://www.aliexpress.com/item/1005006583454093.html

Btw can there be fake PCM-1 pads?
The seller from the last link has it, but the specs say 0,2mm thickness vs 0,25 the official Upsiren store claims. It might just be an error in description, but I am extemely cautious when shopping on Ali.
 
I guess the Upsiren UTP-8 is simply not obtainable unless you pay completely ridiculous shipping that's way more expensive than the product itself, so what is the next best thing I should look for?
There's the Thermal Grizzly stuff, but I heard it was extremely expensive (even the middle performance variant), and with the amount of memory chips on 7900 XTX, 30g might not even be enough.
 
Octopuss said:
I guess the Upsiren UTP-8 is simply not obtainable unless you pay completely ridiculous shipping that's way more expensive than the product itself
Click to expand...
That sucks. Wouldn't mind trying it myself. In one forum post someone claimed it performs similar to KPx. Even if it only gets close, that's really very good.
 
I guess I will simply buy some regular pads thermal pads. They should work a little better than the stock stuff anyway. I just need to figure out what thickness I need.
And fortunately my card has so ridiculously overbuilt cooler it doesn't matter that much. I'll only get the PCM-1 from Ali.
 
Could someone please test PCMA2305 Phase Change Metal Alloy?
smallpdf.com

File shared on Smallpdf

Click to open this document on Smallpdf—or use our 30+ free PDF tools to compress, merge, edit, and more!
smallpdf.com smallpdf.com

P.S: Especially the ones living in U.S may get PCMA2305 easier, because Indium Corporation is actually based in America.
 
Looks shitty like the first one :confused:

Edit:

Don't worry, he said my TIM was shit too.. I think its pretty good.
 
Last edited:
My point was different, namely that we seem to concentrate on the thermal conductivity while the interface is also significant.

Look at the new Artic MX-6 (rev 3) against revision 2, same thermal conductivity but a very different performance, as if a surfactant has been added.

Thermal Resistance.jpg
 
Last edited:
A thermal grease should be characterized not just by its thermal conductivity, but also the thermal contact resistance.

temperature drop.jpg


contact-resistance.webp
 
Last edited:
Just bought Halnziye HY-P17 on Ali. I hope it's worth it for water cooled 5090.

Will use Kyronaut until that one comes.
 
www.igorslab.de

Halnziye HY-P17 | igor´sLAB

www.igorslab.de www.igorslab.de

"High-performance paste that is very well suited for CPUs. Its durability on GPUs is likely to be mediocre ..."
 
You must log in or register to reply here.
Back
Top