Thermal Grizzly KryoSheet

[BoggledBeagle]

Is it possible to set up ... aging test

The producer Smart High Tech of Sweden does not publish companies which they supply their products to, they just write:

We sell our products to international world-leading companies. EU, USA, China, Japan, South Korea and Southeast Asia are our top markets and our products are mainly used for integration in the telecom, computer and automotive industries.

They also write that they have ISO 9001 - quality management system in place.

I am almost certain that they conducted exhaustive tests of their products.

At least in this datasheet they publish results of aging, 800 hours at 120°C:

https://smarthightech.com/wp-content/uploads/2022/02/GT70-Datasheet-20220920.pdf

After seeing their datasheets it seems that the lowest commonly available thickness is 0.2 mm.

 

[zlobby]

My reference 7900XT+Alphacool waterblock pumped out like crazy… went from 22ºC delta to 30º delta in not even 3 months. And that’s an XT, so a good 150+w less than this XTX test!
With the Kryosheet (25x25mm, and with electrical tape around the dies), it’s rock solid 13º delta at full load and 16-17º delta at low load since the day I installed it. Best 30€ ever spent on cooling IMHO. Can’t recommend it enough.

You had some TIM issue, mounting issue or both.

 

[lexluthermiester]

By default you mean "fans locked at 100% for all tests"

No. By default I mean factory settings. Don't be pedantic.

then that is what i am looking for - thx

Then buy your own equipment and do that testing yourself.

I don't know what streams show and what they claim - I was holding that sheet in my hands. You can trust me: it was FAR from durable.
As soon as you remove the transparent plastic cover it litteraly melts in hand (it's greasy). Perhaps cooling it down a bit would help?
So, again: Extreme caution recommended!

Then they're different from the carbon/graphite sheets I've handled.

 

[ChrisM255]

Tried the Kryosheet on my R7 7700X
Results were good enough I tried it on my Sapphire Pulse RX 6700 XT that was making me want to cry whenever I would monitor and my ears bleed whenever I turned on a game.

My results:
7700X + Kryosheet + AK500 cooler
1°C (within variance) higher than fresh TG Kryonaut paste I recorded when I built the system

6700 XT
Stock = horrible temps, 20-30°C delta, fans constantly at 100%, Adrenaline kept defaulting the fan to 100%
Kryonaut + TG minus pads = slightly better temps, still 20-30°C delta, fans constantly at 100%, Adrenaline defaulting fan to 100%
Kryosheet + Arctic TP-3 pads = insanely better temps, 1-6°C delta gaming, fans unheard, Adrenaline settings stable

My application solved my GPU contact issue, it has felt like a totally different GPU since. Runs stable at much higher clocks, lower voltages, quiet and Adrenaline stopped being stupid.
Kryosheet was a win for me!

 

[Deleted member 237269]

@ChrisM255 Any HWInfo or other screens before/after. Just to get a general idea of the improvment. With same fan curves if you did it.

 

[BoggledBeagle]

6700 XT Stock = horrible temps ... fans constantly at 100% ... My application solved my GPU contact issue

This is confusing, why did not you return the card, or RMA it? You disassembled it instead to loose warranty?

 

[Assimilator]

This is confusing, why did not you return the card, or RMA it? You disassembled it instead to loose warranty?

Disassembly does not void warranty. Damage you may cause during disassembly is another story entirely.

 

[ChrisM255]

Don't have screenshots, not that organized in my personal ventures... But, man I was seeing 95-100°C while gaming before on stock settings and even ~85°C while undervolted, more in a stress test and up to 30°C delta GPU-GPU hotspot. I do custom fan curve and it changes every time I setup a GPU. I will try to remember to do a screenshot of the now on HWinfo64 the next time I game w/ settings, probably this weekend. I look through here at work on breaks and after my 50hr+ work week I just want to play... no time during the week with kids and whatnot.
A little more info here

RX 6000 high Delta and temps fixed!

First, I have been desperately trying to find a post like this for MONTHS. I am only trying to help the gaming community. Not looking for 15 minutes of fame, an overclocking competition or ways to improve my overclock. Just want to help people with this GPU temp/delta issue that I was suffering...

www.techpowerup.com

The before, honestly was as bad as most of the results I have seen from other people online with the hi temp and delta issues on the 6000 series.

This is confusing, why did not you return the card, or RMA it? You disassembled it instead to loose warranty?

I am a DIYer...
And I do servicing and refurbishing of electronics/PCs/servers regularly. In my skill set
Third, mine would've been "within spec" and they would've told me to just undervolt it or just refuse the RMA. Reports of it all over online.

Disassembly does not void warranty. Damage you may cause during disassembly is another story entirely.

Also correct, I RMAed a card a few years ago with Asus and even though I had replaced thermal pads and paste issue was unrelated and was covered.
Open laptops at work for service all the time and have yet for it to void a warranty unless I or the user caused damage.
The little void if removed stickers are technically illigal according to the federal trace commission, they just have no teeth... (FTC doesn't enforce)

 

[Morgoth]

do the pads com in various thicknesses for gpus ??

 

[ChrisM255]

do the pads com in various thicknesses for gpus ??

This particular brand comes in 0.5, 1.0 and 1.5mm
But for 1.25mm for example, these are soft enough to work with the 1.5mm pads, etc.

Stacking pads - I have stacked with these and others and didn't think it was poor performance, but not as good as a single thicker pad
For basic cooling you can stack, but if you want every degree find a 2.5mm for example

 

[zlobby]

Tried the Kryosheet on my R7 7700X
Results were good enough I tried it on my Sapphire Pulse RX 6700 XT that was making me want to cry whenever I would monitor and my ears bleed whenever I turned on a game.

My results:
7700X + Kryosheet + AK500 cooler
1°C (within variance) higher than fresh TG Kryonaut paste I recorded when I built the system

6700 XT
Stock = horrible temps, 20-30°C delta, fans constantly at 100%, Adrenaline kept defaulting the fan to 100%
Kryonaut + TG minus pads = slightly better temps, still 20-30°C delta, fans constantly at 100%, Adrenaline defaulting fan to 100%
Kryosheet + Arctic TP-3 pads = insanely better temps, 1-6°C delta gaming, fans unheard, Adrenaline settings stable

My application solved my GPU contact issue, it has felt like a totally different GPU since. Runs stable at much higher clocks, lower voltages, quiet and Adrenaline stopped being stupid.
Kryosheet was a win for me!

While I'm totally happy for your success story, it doesn't show how great the pads are, rather how poorly the card was designed and manufactured. But as I said, I'm happy for you!

 

[ChrisM255]

While I'm totally happy for your success story, it doesn't show how great the pads are, rather how poorly the card was designed and manufactured. But as I said, I'm happy for you!

The pads are just softer allowing better contact with the core. For the pads I think it's more about the relationship to the Kryosheet. I was not upset about the thermal performance though. Not at my computer to pull numbers.
I am very happy though, thank you!

how poorly the card was designed and manufactured.

I wouldn't say designed or manufactured poorly, more just poorly assembled
Once the contact issue is resolved, the card is obviously a solid performer (performance, temps, OC capabilities)
The question I have now is how did every... single... manufacturer of these cards pretty much mess this up...? I'm dumbfounded.

silicon team = win
board team = win
cooler team = win
whoever was in charge of the mating and interface between the board/core and cooler = major f***ing fail!

Now that I think of it, I cant remember seeing lots of reference cards reporting this issue... at least not to this extent.
Guys? Anyone? AMD RX 6000 reference cards with terrible thermals?

 

[fb020997]

You had some TIM issue, mounting issue or both.

AFAIK it’s a combination of high thermal density (5nm is super dense) and not-great-flatness of RDNA3 dies. And this huge pump-out it’s something that more or less every 7900XT/XTX does

 

[ChrisM255]

AFAIK it’s a combination of high thermal density (5nm is super dense) and not-great-flatness of RDNA3 dies. And this huge pump-out it’s something that more or less every 7900XT/XTX does

You know I saw the EVGA would lap their competition OC GPU dies, now I'm curious... Wonder if anybody's done this on one of the 7000 dies. I would assume that you definitely could not do this on a 3D skus with the v-cache.

 

[fb020997]

You know I saw the EVGA would lap their competition OC GPU dies, now I'm curious... Wonder if anybody's done this on one of the 7000 dies. I would assume that you definitely could not do this on a 3D skus with the v-cache.

Won’t it be quite a bit difficult to lap a die after it’s been soldered onto the PCB? At least a CPU can be removed from its socket…

 

[ChrisM255]

Won’t it be quite a bit difficult to lap a die after it’s been soldered onto the PCB? At least a CPU can be removed from its socket…

The video I watched with kingpin talking about it and his assistant actually doing it they showed it on camera and even mentioned they've killed many gpus this way and they have to be super super careful and they kind of set it up in a jig

They totally did it while the chip was soldered to the board

I believe it was a gamers Nexus video after EVGA announced they were bowing out of the GPU game

 

[rusTORK]

I wonder when will mainstream market see those?

I don't think they ever will. Untill it be very cheap (like thermal paste for entire PC build). When i ask one company about price - they told me CNT with size ~10x10mm cost $500.

 

[physicsjunky]

How well would a KryoSheet perform on a EK Waterblock with an 7900 XTX?

 

[ChrisM255]

How well would a KryoSheet perform on a EK Waterblock with an 7900 XTX?

The only way to pull these figures is to actually do it but you would get the same performance as top end paste, you would gain a few more degrees with liquid metal.
This is based on multiple independent testing on the kryosheet and my own testing with my CPU and GPU vs thermal grizzly kryonaut.

I think the biggest selling point with these is the long service life.

 

[Nordic]

I have experimented with a number of different thermal pastes on my 6750xt, out of curiosity rather than need for performance. The kryosheet set a new furmark record for me. It so far performs better than various pastes and PTM7950.

 

[ChrisM255]

I upgraded to a 7700 XT. Found an awesome deal on a brand new TUF gaming OC for just over $400! Plan on doing the kryosheet again. Probably within the next week or two. Out of the box was about 15° Delta and after a month of use it's gone to closer to 22° Delta so I'm itching to get that 5-10° delta back. I'm curious what's it's going to do to the clocks.

I will post before snapshots this weekend

 

[TheDeeGee]

Looks like i need to get this for my PNY 4070 Ti XLR8, as i've seen hotspots of 90C already.

I certainly have no faith in regular thermal paste on a bare die.

 

[venturi]

I have put huge efforts and endeavors into even improving on 1C. Other than going to the dangerous conductonaut, the better solution, over the tried tested kryosheet, is the Kryonaut Extreme (the pink $105 stuff). for my whole air-cooled system and the one I'm building.

All air cooled.


IMHO
The kryosheet, has limitations and has issues with transfer on several surfaces. It is better than most, but after many hours of testing. The sheet is number 4 from the top, for large die CPU and large die GPU.
I have also repasted and used gelid pads (extreme) on both 4090 FE cards for the non main chip contact surfaces such as ram and voltage regulators. I tried the kryosheet on the gpus and the result was 5C higher than the pink kryonaut extreme.

The sheet has its place, but overall, its a unique use case scenario. I'm not interested in reusability, but i do see the value in the part where it would not need replacing repasting. A sense pf permanence. However, in my testing , the sheet is super fragile and I'm not convinced of its re-usability. Delicate is an understatement.

IMHO of course.

I had not done it yet, but was pondering if a hybrid solution would include a slightly dampened (pick an oil or TIM) so that performance is improved on the sheet at the cost of re-usability. If conductonaut didn't scar the surface of cpus gpus and heatsinks, maybe a conductonaut infusion? Where the 'runniness" of the conductonaut is prevented by the ultr thin sheet?

Just musing.




Anyhow, air cooled test and play systems:

getting ready for dual 5090, Functional protype on dual 4090

Well, I had forgotten to post the upgrade I did about a year ago, now I'm getting ready for dual 5090. So I figured I'd show the barebones of the system minus the mesh face. Core Specs: 2x 4090 RTX Founders Edition 2x AMD 7773x Epyc (128/256 cores), Gigabyte MZ72-HB0 Dual socket motherboard...

www.techpowerup.com

and record score when air-cooled

GravityMark Leaderboard

GravityMark GPU Benchmark

gravitymark.tellusim.com

test platforms including my new tinkering/toy and some pics of my "old" system:

 

[THU31]

@venturi Out of curiosity, what do you use that PC for?

 

[rusTORK]

what do you use that PC for?

I bet on Crysis. Look promising.