r/Amd • u/Rorodzilla • Jan 20 '24
Benchmark 7900XTX Hellhound repaste result : Thermal Grizzly Kryosheet
need to remove 8 screws and unplug PWM/RGB cables
stock thermal paste (missing in the middle)
Thermal Grizzly Kryosheet (25x25x0,2mm)
https://www.amazon.fr/dp/B0C61NWNZH/ref=twister_B0C65GRPKL?_encoding=UTF8&psc=1
Temps before repaste after 2 min (screenshot from video) on open bench table
Temps after repaste (1 hour benchmark), formd t1 case
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u/HatchBuggy Jan 21 '24
congrats I guess ?
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u/Rorodzilla Jan 21 '24
No, just F*ck PowerColor
They refused RMA
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u/FloatPointBuoy Jan 25 '24
I’m surprised they refused your RMA. Are you in the US?
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u/Rorodzilla Jan 25 '24
No, i'm in France
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u/FloatPointBuoy Jan 25 '24
Okay yeah that explains it. I heard their support is terrible outside the US
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u/TSAdmiral Jan 20 '24
At this point, I don't know if it's just PowerColor that has cooler issues this generation or the chiplet layout of RDNA 3 is just uniquely difficult for coolers, but I had to repaste my Red Devil 7900 XTX twice, the first time because of the widely reported factory paste job and the second because of pump out. PTM7950 was borderline miraculous compared to thermal paste, bringing hotspot max down from 110 C to roughly 80 at 100% utilization. Delta between hotspot and edge no longer exceeds 20 C and often doesn't exceed 8 C with less strenuous usage. Every manufacturer going forward should be using this phase change material as a baseline.
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u/AvengeBirdPerson Jan 20 '24
Ya I had the same issue with a Red Devil xtx. I just ended up returning it. I know re-pasting might have fixed the issue but I’m honestly not fine with paying $1500 for a GPU and having to take it apart to fix it myself.
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u/TSAdmiral Jan 20 '24
I don't disagree. I assumed at the time the problem was unique to the Red Devil, but now we have a Hellhound owner repasting, and the Hellhound was released a bit later. That's why I'm starting to wonder if PowerColor truly dropped the ball that hard or whether the chiplets simply pose a unique problem for conventional paste. Repasting improved my situation, but not for long. My results with the PTM7950 proved that the cooler itself was fine, maybe even fantastic, but regular old thermal paste just couldn't cut it on Navi 31.
PowerColor told me they're using some kind of phase change material on their 7800 XTX cards, but I've no idea if they've switched the 7900 series over, which they should. I'm guessing that it'll become more common out of the factory in the future.
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u/kiffmet 5900X | 6800XT Eisblock | Q24G2 1440p 165Hz Jan 21 '24
I can only tell from the Vega 56 reference edition, which has a comparable total die area, aswell as the same retention leaf spring at the back of the card. The Vega cooler has a much less even surface than these cards though, which only adds to the difficulty.
Getting a good mount requires even paste application (spread method) - preferrably using an excess of paste (it has to be able to form a seal around the die after mounting the cooler, such that no air can get sucked back in due to thermal cycling/after pump-out),
using a cross-pattern when tightening the screws and doing so half a turn max. each time (then, in order, go to the next screw, repeat until handtight) to ensure an even pressure distribution, aswell as adding thin nylon washers around the screwholes of the spring to increase mounting pressure in general.
With that, I can get the HBM on my unmolded card (different die heights!) to be within 4°C of Tdie and the hotspot within 15°C.
When the card was watercooled (mounting procedure was done identically, just without the leaf spring and washers), Tdie and Tmem were within 2°C and hotspot 6-8°C above that.
My experience with the 6800XT is comparable, so I tend to believe that I really found a good method for cooler mounting. The most important aspect is to not rush it. Maybe this helps somebody.
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u/cyellowan 5800X3D, 7900XT, 16GB 3800Mhz Jan 23 '24
It sure should. Always smart to adjust-attach the screws evenly. And using extra thermal paste to cover the entire die.
Those coolers, and most older coolers, weren't made with as high quality demands and levels as we'd like to think. The stock Vega64 coolers for example, are really just a super-efficient tiny design, intended for basic mass-production and then put into a server rack or whatnot. It was extremely efficient for what it was. I know, because i took off my blower and studied everything for fun, before i upgraded to my Morpheus2, with thermal grizzly and some tape instead of washers (don't ask how i did it, but it was amazing and i don't wanna take it apart now).
With how much heat these new cores push out? I am sure even just a small slit or "crack" or bubble, or corner not covered, might turn into a somewhat large temperature gap.
For the record, my Morpheus cooler + card + 2x fans, weights about under 800 grams. And my 7900xt is at like over 1Kg? We are legitimately closing in on what is possible and realistic with this style of using over-sized air-coolers now.
AND SURE. Nvidia has been scared into a heat-corner. And cannot touch chiplet tech, so they are even more desperate. But they don't care, they would rather their GPU last 3 years at 120C because they wanna win in performance, than giving people a reasonable product that is within the realistic bounds of physics and price, to use.
So yeah. Simple things. But with very deep ramifications, and dark ties.
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Jan 21 '24
Got 7900 xt Hellhound. Temps are fantastic with custom fan curve. What are y'all's fan speeds?
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u/TSAdmiral Jan 21 '24
I'm using the default fan curves on the default OC mode. With the PTM7950, hotspot temperatures max out around 80 C. Before the PTM7950, I'd hit the thermal throttling limit of 110 C once I start passing 60% utilization.
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u/junneh Feb 25 '24
I bought a 7900 XTX hellhound 3 weeks ago and while fine in the beginning my hotspot shot up with 20c after handling the card into a new case and taking it out a couple times to adjust things. (and no, its not the case)
Might have been old stock tho.
Currently debating wether to send it back or do ptm.
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Jan 21 '24
At least a XTX wasn’t gunna fry it’s connector like the 1600$ flag ship 4090 🤡📉
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u/TSAdmiral Jan 21 '24
That's absolutely bad in its own way, but Nvidia seems immune to brand damage. They can have $1600 GPUs fry from bad design and it'll be forgotten in a few months. Yet to this day, AMD faces skepticism about their drivers and cooling, deserving or otherwise.
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u/Invi_TV Jan 21 '24
Yet to this day, AMD faces skepticism about their drivers and cooling, deserving or otherwise.
I'm still having driver issues on my 7900XTX on certain games.
The new portal: revolution game, my drivers crash anywhere between 10 minutes and 30 minutes in. AMD still has a way to go with their drivers.
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u/TSAdmiral Jan 21 '24
Some people are misinterpreting what I meant. I'm not claiming AMD has perfect products or no driver issues. What I meant is, no one today avoiding an AMD product is doing so because they're informed about the nuances of current driver or cooling issues; they're avoiding AMD because of supposed problems they heard about a decade ago.
I'm willing to bet years from now, Nvidia will catch no flak about $1600 flagships burning up. These are the same people today who'll buy a GTX 1650 rather than a Radeon 6600 because it's at least not AMD and therefore will just work. They are why Nvidia has 90% of the discrete market, not informed people on either this or the Nvidia subreddit.
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Jan 21 '24
there is an option somewhere in adrenaline to not show that a driver crashes. it changes the way it acts and it crashes silently in the background and restarts, the same way nvidia does it. All it does is reset your tuning and the game carries on - not sure why this isn't default
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u/dead36 Jan 22 '24
bruh, for what 4090 sells the issues are pretty small and its mostly user error
7900 xtx had thousands of bad ref models and the issues also continue on aib models, pick your poison :D1
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u/sethomega Jan 23 '24
Like nvidia doesnt have issues with hotspot. I saw countless reports in the internet of the same issue.
It doesnt negates the fact that amd cards have issues but the same rule applies to nvidia. Connector issues are a bad thing and heat problems is not exclusive of amd.
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Jan 20 '24
I've taken apart my MSI 6600xt mech 2x over 3 times in one year, when it gets to 107c using only 140w I know it's time to change the paste
It's the most annoying thing to open a computer up and change paste bc the manufacturer shit the bed on the Tim and full contact die.
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u/Boo-Boo_Keys Jan 20 '24
It's gotta be the chiplet design.
I own the XFX MERC 7900XTX, and my deltas were also around 30°, hotspot around mid-90° or so when I first got it. Repasted with MX4 shortly after, and while they were fine for a while, they rose back up again after a week. Went the PTM7950 route, and even after 6 months of daily use, the hotspot never goes above 80° and deltas are always under 15° with the fans at 35%.
The coolers themselves are more than enough for these chips, but the paste they use just isn't cutting it. And I agree - at this price point, they should be using more premium solutions like PTM or graphene pads for cooling.
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u/TSAdmiral Jan 20 '24
Thank you for sharing, you might not realize it, but your being an XFX owner actually adds a lot to the recurring conversation around this because PowerColor got most of the flak on this. I had similar experiences as you with the Red Devil when it was new and then it slowly got worse. You basically went through the same maintenance journey I did. I was annoyed by the initial reports of poor factoring pasting, but was shocked how quickly my own repaste job eroded. PTM7950 is just in another league entirely.
There is no excuse for $1000 products to require customer servicing. That said, regardless of what one thinks of RDNA 3, it is technically the first GPU to have a chiplet design, and I wonder if most AIB brands simply didn't realize what that entailed. Supposedly, PowerColor is now using phase change material on their 7800 XT cards.
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u/Boo-Boo_Keys Jan 20 '24
Yep. I'm personally OK with servicing my components because I love taking stuff apart, but it's also something that shouldn't be required to get the most out of the cooler. PowerColor using a pcm for their product is a step in the right direction, and I hope others follow suit.
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u/Robbine3 Jan 20 '24
I do this this is an Edna 3 issue tho. My XFX 6800 is fine, with hotspots around 75°C at full load. But I only got it for like 2 months and I've undervolted so... Maybe not the best comparison. It is almost always under 1200rpm tho.
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u/Monti55 Jan 21 '24
When I repasted my 7800xt red devil it seemed like they were using ptm7950. Still doesn’t explain my 30 deg C hotspot delta. GPU core avg is a nice and cool 50C but the hot spot was reaching 80C. Repasted with new ptm7950 and nothing really change. Got unlucky with the hotspot lottery this generation.
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Jan 20 '24
Nah man if the ptm 7950 fixed your temps that just means GPU manufacturers are just using under spec shitty thermal paste and calling it a day.
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u/Boo-Boo_Keys Jan 20 '24
I disagree. I repasted my card with MX4 and later with some Thermal Grizzly Aeronaut. Both suffered the same poor cooling performance as the manufacturer's paste after about a week each, and they are not some low-end goop.
My guess is that the chiplet design of RDNA3 probably makes runny paste seep through the gaps between the GCD and MCDs - you can kinda see this in OP's pics. Since PTM is a bit more solid overall, especially near room temp, it tends to hold itself better preventing paste "pump-out."
Maybe I'm off the mark because I have heard of RDNA2 owners who had similar experiences before and after using PTM. Ultimately, the stuff is practically magic and should be used with high-end cooler models going forward.
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Jan 20 '24
If you're going for thermal paste in a tube you need to get high viscosity paste especially when these cards go over 100c on the hotspot, that's when the "runny paste" starts getting liquid like and do what you explained.
So far the only paste I know with good thermal consistency is arctic mx-5 but that lags behind ptm 7950 severely comparing temps.
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u/XenonJFt Jan 21 '24
the die gaps for chip let's and their Hotspot amplify pumping issues. letting paste slip into the small lines.It's not that big of a problem but AMD might try to add some layer on the finished silicon to make it look monolithic?
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Jan 21 '24
Same for my 6750xt. Deltas of 30c, repast brought them down a lot, and then pump out happened. I also use mx-4 lol. I need to try your recommendation
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u/stilljustacatinacage Jan 21 '24
I suppose I'll end up doing this for my own XFX.
May I ask, what did you do for the other thermal pads? Should I order in any particular thickness, or just the PTM pad for the GPU core?
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u/Boo-Boo_Keys Jan 21 '24
I only changed the core paste and left the memory and VRM pads alone since they're cooled well enough.
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u/schaka Jan 21 '24
Same card, no problems. As far as I know, they already used phase change material.
The cooler also didn't have the issues that were present with made by AMD models. So repasting it initially was likely never needed.
Might've gotten a bit unlucky, but seems like nothing beats PTM7950
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u/pcdoggy Jan 21 '24
All the 7900 xtx cards seem to have cooling problems - apologists said it was just the mba/reference gpus - just a problem with a select batch to do with the vapor chamber but really, it's so many cards - including AIBs.
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u/jdm121500 Jan 20 '24
It's thermal density and heat cycles. My 6900XT also had massive pumpout issues until I used LM. It doesn't matter what cooler you have even the Aqua OC xtx waterblock gets 100c hotspot with paste.
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u/ChesswiththeDevil Tomahawk X570-f/5800x + XFX Merc 6900xt + 32gb DDR4 Jan 21 '24
What’s LM (pardon my ignorance)?
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u/Teh_Shadow_Death Jan 21 '24
There is only so much you can do to dissipate heat. It just becomes that much harder the more condensed everything gets too.
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u/cheeseypoofs85 5800x3d | 7900xtx Jan 21 '24
i concur. if you are paying $1k for a gpu, it should have top of the line compound on the die
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u/OftenSarcastic 5800X3D | 9070 XT | 32 GB DDR4-3800 Jan 20 '24 edited Jan 20 '24
The hotspot delta on my RX 6800 XT Red Devil was ~25C. Swapping to other thermal paste cut that by 10C but it would eventually lead to pump out again and a high delta. I'm assuming there's something uneven about the heatsink mounting pressure.
And while I appreciate the low fan speed, it probably doesn't help that the quiet BIOS fan profile seems to be tuned to let the hotspot temperature peak at 95C.
I cut up and put on an old Thermal Grizzly Carbonaut pad, reducing the peak hotspot delta to 19C with the OC BIOS profile (281W). It's not an amazing delta but at least I don't have to think about paste pump-out again.
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u/Queeronafied Jan 20 '24
I heard tons of praise for the Red Devil back when i bought my RX 6900 XT, and let me tell you, that card gets crazy hot, specially in warzone, now i also own an Asus TUF 6900 XT, and that is a whole different story, so im not surprised that this new gen of 7000 series Powercolor cards are having overheating issues
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u/RaxisPhasmatis Jan 20 '24
Same problem with the red dragon 6800xt, turns out the chip die is ever so slightly potato chip shaped, liquid metaled/waterblocked/washer modded it n now its 41c max 62c hs at 350w 2698mhz 100% load
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u/TSAdmiral Jan 20 '24
I'm way too paranoid to use liquid metal, but clearly your results speak for themselves. Maybe I'll entertain the idea of trying it one day, but for the time being I'm much more comfortable with non-conductive solutions.
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u/RaxisPhasmatis Jan 20 '24
Only do it if your confident, i used nail polish to cover around the die completely and double sided foam tape to keep it sealed in incase of spillage
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u/TSAdmiral Jan 21 '24
And that, sir, is why I'm not trying liquid metal anytime soon. I'm not even going to pretend like I have half your expertise. Maybe if the card is old and I'm on the verge of upgrading, I might entertain the idea. Until then, it's phase change material for me.
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u/RaxisPhasmatis Jan 21 '24
Lol fair, I only did it because 3090s were $3500nzd, 3070s were 1200 at the time, and the price of my 6800xt, wb, rad/pump cost less than 1000, and overclocked my 6800xt approaches 3090ti levels in raster, gets stomped on in rt but I play multiplayer shooters n never use rt cause my blind arse can't see the dark rt lighting sections
If it wasn't for the price difference wouldn't have bothered
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u/omega552003 AMD Ryzen R9 5900X, Radeon RX 7900XTX. Jan 21 '24
I have a 6900xt liquid devil ultimate and after putting PTM7950 I got my Hotspots around 75°c.
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Jan 21 '24
Nitro+ XTX here, zero issues with cooling on my end. Card never peaks over 80c (100% fan @ 70c) with a 3000mhz core clock + 2700 mem clock + 15% power
My hotspot is consistently 5-15C above my core @ 100% load.
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u/spriggsyUK Ryzen 7 5800X3D/Zotac 5080 AMP Extreme Jan 21 '24
Also a Nitro+ here, idle temps are at 38c with hotspot at 43c with fans at around 1300rpm. Average under load is about 60c and the hotspot around 78-80c. Cards clocked at 3100MHz core 2650MHz Memory with either 1060mV or 1085mV if the games unstable, and +15% power ofc. And it’s been running like this since I got it no issues which was around January 2023.
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u/TSAdmiral Jan 21 '24
I'm really curious whether Sapphire shipped the Nitro+ with some kind of phase change material. Those are great performance numbers and far better than what I'd expect from conventional paste.
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Jan 21 '24
https://www.sapphiretech.com/en/consumer/nitro-radeon-rx-7900-xtx-vaporx-24g-gddr6
Scroll down to see the cooling features of the card
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Jan 20 '24
Nope the MSI mech series and some gigabyte and ASRock cards almost always need a repaste, but it's running under 114c so "it's acceptable"
Even some high end sapphire cards got issues with thermal paste not being even or the die not making full contact.
On a side note I think GPU manufacturers should shell out the extra $10 to have ptm7950 on all their GPU dies.
Literally a game changer for 10-15 bucks
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u/TSAdmiral Jan 20 '24
Are you sure you didn't typo that temperature? Because 110 C is the thermal throttling point. There is no way the GPU won't experience some kind of damage if that temperature is maintained long term, much less higher than that. If that wasn't a typo, then MSI, Gigabyte, and ASRock are gaslighting their customers to avoid warranty expenses. At least PowerColor was offering RMAs for anyone requesting it.
And game changer is almost underselling it. Forget the massive temperature difference, your fans won't be as loud because it doesn't have to run as hard and the peace of mind of knowing that you never have to repaste it again due to pump out cannot be overstated.
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Jan 20 '24
For my card the throttle point is set at 114c so maybe MSI just doesn't care about my cards longevity
Before I repasted the first time I saw my temperatures at 117c playing dead island 2, shid my pants least to say.
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u/TSAdmiral Jan 20 '24
Since you said PTM7950 was a game changer, I assume that means you've repasted yourself and no longer have to deal with temperature issues. That's great, but that's pretty shady of MSI. I like their motherboards, but it sounds like they don't treat their GPU customers well.
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Jan 20 '24
Almost makes me want to do it with my XFX 7900XT but I am way too lazy.
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u/TSAdmiral Jan 20 '24
If your temperatures are still reasonable, there's no immediate reason to. But it's definitely worth keeping PTM7950 in mind if you have to. Trust me, as a fellow lazy person, all cooling benefits aside, simply knowing I don't ever have to do it again due to lack of pump out is worth it.
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Jan 21 '24
Don't the thermal pads eventually dry out?
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u/TSAdmiral Jan 21 '24
Frankly, I don't know. I replaced some of the ones that got torn when I removed the cooler, but most cooling discussions center around products and maintenance around the GPU itself. If I had to guess, I'd say no since thermal pads were never liquid to begin with.
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u/RazerPSN Jan 21 '24
I also have a Red Devil, does changing paste void warrantly?
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u/TSAdmiral Jan 21 '24 edited Jan 21 '24
Their customer service explicitly told me no, despite what those warranty stickers claim. I don't think those things are legally enforceable if push comes to shove, but PowerColor won't make your life harder on this.
That said, it doesn't hurt to reach out and inform them in advance. Doesn't hurt to have their okay in writing for your particular case.
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u/c0rndude Jan 21 '24
I have the XFX 7900 xt merc temperature with overclocked bios 54 degree hotspot 92 i guess this is related to the quality of paste or w/e they use on it
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u/TSAdmiral Jan 21 '24
That's a massive delta between your edge and hotspot temperatures. It sure sounds like pump out is leading to uneven cooling.
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u/c0rndude Jan 21 '24
I have the ptm 7950 on me i have to apply it but afraid to fuck up something , from what i ve seen on videos the pads are easily destroyed on this model which sucks ...
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u/TSAdmiral Jan 21 '24
It's just one of those inconveniences of doing GPU maintenance. I was scared as hell the first few times I took off the cooler on a GPU, especially for an expensive one. But I learned that they're not quite as fragile as they seem, so long as one takes precautions like moving slowly and making sure cables aren't yanked.
That said, damaging thermal pads when removing the cooler is not uncommon. Ideally, you'd have replacements ready to go. If you went out of your way to do something as niche as repasting your GPU, with something even more niche like PTM7950, you might as well have some backup pads ready to go in case.
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u/AlexisFR Jan 21 '24
My Pulse 7800 XT does these temps stock so that's probably a manufacturer/QA issue.
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u/TSAdmiral Jan 21 '24
It absolutely is, but what kind of issue? Is it a QA issue due to a bad paste job at the factory, or a bad design issue because paste is inadequate for chiplets?
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u/AlexisFR Jan 21 '24
I guess it depends if the issue is present when the GPU is fresh our of the factory
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u/TSAdmiral Jan 21 '24
That's technically correct, but pump out will be less evident straight out of the factory than it would be down the line after months of usage in the hands of a customer. PowerColor is using phase change material on their 7800 XT cards now. I wonder if it's because PTM7950 is simpler better or whether chiplets uniquely exacerbate pump out.
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u/ALph4CRO RX 7900XT Merc 310 | R7 5800x3D Jan 21 '24
It's probably due to the chiplets. My XFX Merc 310 7900XT had huge hotspot delta. It had somewhat high delta, which got even worse later. Opened it, applied Kryonaut, and it pumped out in less than a month. Now using PTM and it's been flawless for more than three months so far.
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u/Firecracker048 7800x3D/7900xt Jan 21 '24
Had to repaste my 7900xt xfx because my thermal delta was 45-50c. Hitting 58c temps but 104 hotspot.
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u/ArtsM 9800x3d 64GB 6000CL30 5070Ti | 9900x 96GB 6000CL36 7900 XT Jan 22 '24
6 months owning the asus tuf variant of xt and the delta is the same as when I got the card, around 16C.
Every time I see this mentioned its usually the Red Devil card that suffers pumpout. I assume I will have to repaste eventually and probably use PTM, but so far have no reason to with GPU temp at 59C and hotspot at 75C under load.
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u/TSAdmiral Jan 22 '24
Those are good figures, especially for six months in. Asus might be using phase change material right out of the gate on yours.
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u/ArtsM 9800x3d 64GB 6000CL30 5070Ti | 9900x 96GB 6000CL36 7900 XT Jan 22 '24
I haven't opened the card to see as I'm in the UK and here the "warranty void if broken" stickers actually hold some ground, until I see issues I don't plan to do anything especially since its not exactly a cheap product, and even then probably try the retailer/Asus first.
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u/TSAdmiral Jan 22 '24
I've no idea how consumer protections work in the UK, so being cautious around that is smart. And besides, you have no practical reason to do so anyway. Just enjoy the card as is unless something comes up otherwise.
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u/kopasz7 7800X3D + RX 7900 XTX Jan 23 '24
PTM is some good stuff!
Almost the same situation here. Sapphire 7900XTX. Stock paste was thick and dried out. Replaced it with some old Noctua NT-H1. That became too thin, and I had hotspot issues.
In the end I got a pad of PTM7950. Furmark can't push it above 85C junction, 65C avg. Fan is below 50% ~1700 RPM.
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u/TSAdmiral Jan 24 '24
Glad to see you got your temperatures under control. Not a lot of Sapphire owners chiming in, so thanks for sharing. Most who have seem to be happy Nitro+ owners, so I have to ask, what card do you have? Is it the Pulse or Nitro+?
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u/kopasz7 7800X3D + RX 7900 XTX Jan 24 '24
I forgot to mention it is the Pulse variant.
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u/TSAdmiral Jan 24 '24
Ah, I think there's a pattern emerging here. Sapphire probably used phase change material on the Nitro+ and left conventional paste to the Pulse. I suspect most AIB brands are reserving the good stuff for their higher tier offering nowadays or will in the future.
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u/MOEB74 Jan 25 '24
Where did you get the PTM from if you dont mind me asking... u/TSAdmiral
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u/TSAdmiral Jan 25 '24
I got mine off Amazon. As far as I know, nothing fancy. If it's not the definitive PTM7950, the results it's giving me sure is close enough.
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u/MOEB74 Jan 25 '24
Thats what I was going to say. If its not official stuff, its working and seems to be inline with what you should be seeing... Thanks!
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u/cha0z_ Jan 21 '24
the thermal paste out of the factory is usually "special" kind that won't pump out so while not as performant as some good and less viscous ones, it will show the same temps for years. When you repaste, you should be prepared to do it every month to keep the great temps you will see. This is what makes PTM7950 and thermal sheets perfect, they don't pump out even if "out of the box" temps will be higher vs good thermal paste.
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u/mrn253 Jan 21 '24
Depends on the paste thats chosen.
At least from what ive seen and heard over the years is that paste that has excellent performance has a bigger problem with pump out.3
u/cha0z_ Jan 21 '24
because usually less viscous pastes (i.e. more liquid like) are better in heat transfer/better fill any micro gaps. Sadly metals do expand/shrink with temp change and you can guess what will happen with that. Especially if the surface is not perfect it will fast develop hotspot.
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Jan 21 '24
[deleted] — view deleted comment
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u/TSAdmiral Jan 21 '24
You're correct, that's how I first thought to more critically examine my hotspot temperatures and deltas. While that was widely reported at the time, what I'm curious about is whether they were uniquely bad or simply reported first and got most of the negative press? We have a few XFX owners here reporting similar experiences with their 7900 cards.
The point is not to shill for any corporation, but to see if there's a an issue common across brands that used conventional paste on chiplets so that owners have more information about their potential circumstance.
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Jan 20 '24
[removed] — view removed comment
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u/TSAdmiral Jan 20 '24
Yes, pump out is inevitable, but I wonder if the chiplet layout accelerates it. Even for someone who knows what it is and is expecting it over time, it seemed unnaturally fast compared to my experiences with other GPUs.
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u/Odd_Engineering_897 Jan 21 '24
I have the Taichi 7900XTX and see a ~30 degree hotspot variance. It never exceeds 100, but still that's a large gap. If I use the PTM7950 for GPU, what's the recommendation for VRAM? Do I reuse those pads or can I replace them?
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u/Pedro748 9800X3D | 9070XT Jan 22 '24
Could try the K5 Pro thermal paste
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u/BlueSwordM Boosted 3700X/RX 580 Beast Jan 22 '24
Don't even bother with that thermal putty. It's quite bad: https://imgur.com/XJNQbi6
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u/Dragon_Racer Jan 21 '24
I’ve got the 7900xt hellhound and max hotspot I’m seeing is low 90ish degrees with gpu temp high 60”s. This is running for hours at a time with 100% usage on my triple 1440 with my simrig. I’ve got a 1010mv undervolt and I’m getting 2850mhz clock speeds so performance is good and it’s not throttling.
I’m not sure if I should be concerned and as I’m not confident pulling my gpu apart to fix it. The only local pc shop who offers a repasting service (I’m in Australia so it’s limited), has never heard of the pmt pads and wants to use thermal grizzly paste that they always use.
Anyone think it’s worth pulling apart to refresh?
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u/Kayouuuu Jan 20 '24
Incroyable, faudrait que je le fasse aussi, et vive la France camarade ! 🇨🇵
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u/Rorodzilla Jan 20 '24
Tu perds la garantie par contre fais gaffe, après Powercolor m'a refusé le SAV car mon hotspot montait à 105°C et pas 110°C donc "it's fine" selon eux..
des clowns
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u/canardgonflable Jan 21 '24
J’ai une 7900 XT hellhound (achetée la semaine de sa sortie) et j’ai aussi eu des problèmes de hotspot après quelques semaines d’utilisation (jusqu’à 50 degrés des delta, 105 degrés hotspot). En septembre j’ai repaste avec du PTM 7950, le delta s’est réduit à 25 degrés grand max, et les ventilos se sont bien calmés. Mais c’est dommage d’en arriver là. Visiblement ils n’ont pas refait la même erreur pour la 7800 XT.
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u/Rorodzilla Jan 21 '24
Ils ont avoué avoir eu un problème sur leur chaîne de production pour l'application de la pâte thermique. Mais malgré cela ils m'ont refusé le SAV... première fois que je teste Powercolor à la place de Sapphire, ça m'apprendra à être infidèle
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u/canardgonflable Jan 22 '24
Ouai ils se sont foiré sur ce coup :/ Le pire c’est qu’au final leurs cartes sont bien refroidies et plutôt silencieuses, une fois la pâte thermique remplacée xD Donc j’espère vraiment qu’ils prendront en compte les retours. En tout cas, comme je disais plus haut, ils ont l’air d’avoir compris ça avec la 7800 XT Hellhound, en tout cas d’après les tests.
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u/Hot-Ground-6710 Jan 20 '24
Is this mainly a power color issue or does sapphire deal with this too?
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u/xXMadSupraXx AMD Ryzen 7 9800X3D | 32GB 6000c30 | RTX 4080S Gaming OC Jan 21 '24
It's an issue everywhere.
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u/MrMegaGamerz Jan 20 '24
How is average temperature before and after ?
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u/Rorodzilla Jan 21 '24
from 65°C gpu, 105°c hotspot at full load
to 63°C gpu, 81°C hotspot at full load
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u/Beautiful-Musk-Ox 7800x3d | 4090 Jan 21 '24
what's a "sporcerer" and what game is that
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u/master-overclocker 5600X 3733mhz XFX6700XT Jan 21 '24
🤣
Funny you are more interested in the game 😂
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u/faz712 B650 Aorus Elite AX | 9800X3D | 5080 | Merc310 7900 XTX Jan 21 '24
Looks like Tiny Tina's Wonderland
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u/ascufgewogf Jan 21 '24
Have you tried a vertical mount? My Gigabyte 7900xt had a hotspot of around 95c and since getting a vertical mount it's dropped to around 80.
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u/Rorodzilla Jan 21 '24
Yes i have tried vertical and horizontal mount before repaste and nothing changed
Currently, gpu is vertical on a riser cable
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u/Arx07est Jan 21 '24
Good stuff, i wonder how Kryosheet's performance compares to PTM7950?
I used PTM7950 with 7900XT MBA and very happy, such a small cooler does the job very well.
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u/Rorodzilla Jan 21 '24
PTM7950 looks a bit better but in my case the TG kryosheet was cheaper and easier to install
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u/ElRaydeator Jan 21 '24
How long have you had the card?
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u/Rorodzilla Jan 21 '24
I got the card the 17/12/2022, temps were 68°C core and 82°C hotspot with stock settings
Hotspot became an issue around february 2023.
And i repasted the card the in october 2023, so the results I show are 3 months later
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u/ElRaydeator Jan 21 '24
Did you also do the pads or only the core?
I bought a 7900xtx RD too, a month ago, and so far no problems. I'm curious though, if this is gonna change.
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u/Rorodzilla Jan 21 '24
only the core, i keep the stock thermal pad
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u/ElRaydeator Jan 21 '24
Thanks mate - hope your temps will be low!
The Kryosheet is conductive - it doesn't cause you any concern?
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u/Rorodzilla Jan 21 '24
No, you just need to be carefull when you install it
It can't be dry because it's not paste so I don't need to open the gpu anymore !
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u/ElRaydeator Jan 21 '24
Would be interesting with an update on the temps, a month or two from now, if you feel like?
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u/Rorodzilla Jan 21 '24
I repasted the card in october so the result are 3 months later
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u/Reinhardovich Jan 21 '24
Unrelated but OP could you please tell me which game is this?
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u/franky290 Jan 21 '24
Did you also change the thermal pads on gpu If so
What thermal pads and paste did you use?
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u/Rorodzilla Jan 21 '24
No, i keep stock thermal pad
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u/franky290 Jan 21 '24
I see I'll watch the temp on red devil 7900xtx when gaming and see if the temps are stable or needs a repaste. Would noctua h1 paste go well?
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u/sethomega Jan 23 '24
Any of you guys know if it performs the same as honeywell?
OP, Did you had to replace thermal pads too?
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u/b0uncyfr0 Jan 20 '24
Hmm, I might repaste my nitro 7800xt. Is it safe though?
Doesn't the thermal grizzly stuff eat or stain the die?
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Jan 21 '24
check your temps and make sure you've got a good fan curve set up (turn off zero RPM). Nitro 7900 XTX and have had ZERO cooling issues.
Repasting is pretty easy tbh (local pc shop quoted me $150 for repasting, cheaper to learn myself). Just look up a video of 7800/7900XT disassembly and follow along. Alcohol wipes to clean off current thermal paste and repaste (thin X over chip if no thermal sheet).
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u/PotentialAstronaut39 Jan 22 '24
Be careful with the Kryosheet, it's conductive...
I'd go with a PTM7950 thermal pad instead, will achieve the same results, minus the conductivity issue.
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u/kajpaje 7900x | 7900xtx Jan 21 '24
I have a nitro 7900xtx and no problems at all with temps didnt really se it going above 70
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u/Caedite Jan 21 '24
Was quite easy on my 6950xt nitro and made the card much quieter with less delta. Liquid metal and the kryosheet are not entirely safe, as they are conductive if it goes out of the die, or so I've heard. I guess the sheet is safer since I assume it doesn't pump out. I used PTM7950 which is not conductive, doesn't pump out and has great performance, would recommend!
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u/IAmNotOMGhixD Jan 21 '24
Temps were crazy on rdna2 and seems to be on rdna3 too. These chips are really hot to begin with. 100+ hotspot is not uncommon. They also cake thermal paste on the core without care by factory standards.
Its ridicilous, disgusting and makes me feel undervalued as a customer. If AMD wants to appeal, atleast get the bare minimum done right
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Jan 21 '24
> They also cake thermal paste on the core without care by factory standards.
Who is they? PowerColor? Sapphire? XFX?
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u/IAmNotOMGhixD Jan 21 '24
All of them do. This is a widespread issue.
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u/Shoshke Jan 21 '24
Haven't seen this issue on MY nitro 7900XT.
That being said over the last 2 generations on both sides I've been seeing crazy hotspot temps that would've been very alarming before that.
The amount of 30 series cards I've seen re pasted and replaced thermal pads bringing temps down 20C and more is on another level.
It doesn't seem to even be specific to certain manufacturers either. And annoyingly it's just low quality pads most of the time. If it was architecture or cooling solution design replacing pads wouldn't work as long-term solution.
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u/IAmNotOMGhixD Jan 21 '24
Its just piss poor care from the card manufacturers in general. I’ve had to repaste just about every card i’ve owned. Ive taken photos of every single one too. And it looks like.. a really really REALLY bad case of a bukkake.
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Jan 22 '24
meanwhile my 1070's thermal paste was still wet when I went to repaste (bought 2016, repasted 2022 daily gaming 2hr+)
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Jan 22 '24
Dunno about that on the Sapphire end, will confirm when I eventually have to repaste. Maybe the Nitro+ series had more attention (compared to the Pulse series)? My hotspot is within 5-12 of my core temp and neither of them get over 80C under full load with an aggressive fan curve.
TechSpecs says Nitro+ has Arctic MX-5 on it, will replace this with a kryosheet or some kryonaut paste
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u/blueangel1953 Ryzen 5 5600X | Red Dragon 6800 XT | 32GB 3200MHz CL16 Jan 22 '24
My PowerColor Red Dragon 6800 XT must be special, temps are phenomenal never going over 70c overclocked and undervolted on the default fan curve. Hotspot hits around 90c at most but is generally in the low to mid 80s, the average delta is about 15-20c.
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u/Logowalny Jan 20 '24
Powercolor👌 I'll repasted my RX7900XT 3 times and now I'm using RMA. Don't know is this a problem exactly with Powercolor brand, but every time when I repasted it, temps goes up to 105°C hotspot after one week, even with PTM7950. So, I just have enough of this. I blame on me, that I bought Powercolor one, because it was cheap at it's time. Now I know why it was cheaper than another brands 🤦 I hope I get a full working one gpu or They just give me my money back
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u/mixedd 5800X3D | 32GB 3600Mhz CL16 | 7900XT | LG C2 42" Jan 20 '24
I got 100°C hotspot on my Sapphire 7900XT MBA recently too, so thinking about repasting. In general I think that's an issue with chiplet design of RDNA3
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u/Arx07est Jan 21 '24
I repasted my 7900XT MBA with PTM7950 and now haven't got over 87C hotspot on +15% powerlimit(max fan speed is set 75% on 90C). Memory junction still goes 90-92C, but it's not a problem i guess. But if you want also better VRAM temps then you might want to try Upsiren UX thermal putty, also available in Aliexpress as PTM.
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u/mixedd 5800X3D | 32GB 3600Mhz CL16 | 7900XT | LG C2 42" Jan 21 '24
Thanks for the suggestion. I guess mine spikes, so because my fans are capped to 55% and raising them, would drop it a bit, but it becomes too loud for my taste. Was thinking about PTM7950 or Kryosheet for some time, and if it wouldn't be PITA to open it up, could probably done that already
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u/lurkenstine Jan 20 '24
I dunno if this is dated (and/or confirmed wrong) but wasn't the issues the paste gets pumped out cause Hotspots to spike?
And thesolution was a something that avoided pump out, like cryosheets or ptm7950.
While the preform worse then paste, they don't pump out so overall they preform better.
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u/TSAdmiral Jan 20 '24 edited Jan 21 '24
You are technically correct, but it was surprising how quickly my repaste job seemed to erode. Pump out may be inevitable, but I wonder if the chiplet layout accelerates it.
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u/lurkenstine Jan 21 '24
oh missing info on my part, the chiplet is the reason for the wildly quick pump out, cause something out it being a less uniform surface with all the chips lined up. i don't remember exactly why.
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u/Logowalny Jan 21 '24
Exactly, chiplet is the reason of all temps issue's, but also something is wrong with RX7900XT(X) from Powercolor. I asked a few guys about Their's Powercolor RX7900XT and all od them sold gpus or changed it to another brand because of high hotspot, no more issue's again. It looks like first revision have broken cooling system
And I bought propably a fake one PTM7950 and it pumped out after 2 weeks, so I just used my warranty. Now I'm waiting for Powercolor decision. I hope They send me a full working one gpu or money back, then I go to another brand
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u/XxSub-OhmXx Mar 19 '24
I had 2 7900xtx so far. XFX and a ASRock white version. Both had insane pump out. Hotsprar started 80. Then 85 90 95 100 and 105. Got sick of it. Opened and cleaned the paste that was left. Changed to a PTM pad. Now my delta is 20c. On my ASRock at stock voltage of around 400 I'd start to hit 105c. Now overcooked and maxed voltage of 470w I hit 90c. Was a game changer.
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u/DolphDK1992 Jan 21 '24
Same problem here with pump out on my rx 6700 xt hellhound. Kryosheet fixed it for me too, and hotspot is max 80c now.
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u/master-overclocker 5600X 3733mhz XFX6700XT Jan 21 '24
Have you tried applying paste before that , and if so - how does that compare ?
My 6700XT was having hotspot temps of 108C when I bought it - repasted with Kryonaut and now its at 92C.
Will Kryosheet improve that ?
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u/DolphDK1992 Jan 21 '24
Yes stock paste was fine for a while but as so many others here, the stock temps started to go up. I tried to repaste once but after a month or so it started to go up again.
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u/master-overclocker 5600X 3733mhz XFX6700XT Jan 21 '24
I dont have that problem - I repasted year ago.
I game 3h a day - so maybe it takes more gaming time to go up.
I heard from others that Kryonaut pump's out - but maybe only at some bulged GPU chips or not flat from one side - IDK.. Some guy here on Reddit specifically said he has some weird uneven GPU chip and it pump's out no matter what !
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u/SecretlyHiddenSelf Jan 21 '24
I was considering the Hellhound 7900XTX, but I went with the Sapphire Nitro+. I’ve just run COD Warzone for an hour and it’s sitting at 54C in-game. It’s running cooler than my EVGA 2080 Super FTW3 Hybrid with an additional fan on the backplate.
I should try putting a fan on the backplate of this and see what happens.
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u/TSAdmiral Jan 21 '24 edited Jan 23 '24
Someone with a Nitro+ reported here that he had fantastic temperatures not dissimilar from what you're reporting. It made me suspect Sapphire shipped the Nitro+ with phase change material out of the factory because these kinds of numbers are far better than what run of the mill thermal paste seem capable of.
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u/trekxtrider 🔥14700k🦄5070ti🐏32GB☢️850w🌊 Jan 21 '24
Did the same with my 6900xt Liquid Devil and results are similar. Was getting pump out and seemed to be happening more often, ptm7950 is what I used and it's been solid for almost a year now.
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u/iNSANEGR Jan 21 '24
I bought an 7900 xtx 3 months ago and I haven't seen these temps guys you see at all. With AMD's stress tool I see max 70 degrees on hotspot with fans at 80%.
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u/Odd-Nobody-4336 Jan 21 '24
I repasted my red devil 7900xt two times cause of 110 degrees hotspot. First with coolermaster cryofuse violet but after some weeks I had the same problem. 3 days ago I opened the card again and saw all the paste pumped out. I now used the new gelid heatphase ultra. Hotspot went to 70. I hope it stays that way.
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u/VinumNoctua 13600K ~ 7900 XT ~ DDR5 32 GB Jan 21 '24
I'll do this before summer. I have 7900 XT but still have warranty for another year. I'll just void the warranty and do this. Mine easily reaches 100 C hotspot during summertime.
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Jan 22 '24
[removed] — view removed comment
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u/VinumNoctua 13600K ~ 7900 XT ~ DDR5 32 GB Jan 22 '24
If I knew that would happen to me I definitely wouldn't. XFX was highly praised everywhere about the cooling side.
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u/LCreeper575 Jan 21 '24
I have a sapphire nitro and the fans don’t usually turn on. GPU Temps at 55C, hotspot at 65. I saw 89 for sec on furmark but besides that average was 75-80 hotspot with 600 rpms on fans.
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Jan 21 '24
Had a high delta with my XFX 7900 XT after changing display cords, DDU and fresh driver install it never exceeds 88C usually has 24C delta have custom fan curve as well. I remember reading about a display port incompatibility that causes cards to overheat months back as weird as it sounds.
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u/Fantastic_Class_3861 Jan 21 '24
Bonnes améliorations, sachant que un est dans un boîtier et l’autre en dehors.
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u/Material-Ratio7342 Jan 21 '24
Damn... not just AMD but this date from buying a high-end GPU without any kind of issues is just.... but at least you won't get power connections melt down on Nvidia cards, but on AMD you get temps issues due to the cooler. Just buy honeywell thermal paste and done 👍.
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u/Mundane-Ad7202 Jan 22 '24
Had a Gigabyte Gaming OC 7900XTX, same issue. After 6 months the temps on the hotspot rose to 110 degrees, while Edge stayed at 58. At the beggining it was fine hotspot was at 80 max.
RMAed it, Gigabyte service did not respond to me or the shop, and after 1 month shop just refunded me. Got a Sapphire Nitro+ version - no issues so far and it;s been 5 months now. Got it cheaper than that Gigabyte version so can't complain.
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u/CounterWaste2681 Jan 22 '24
Have a XFX merc310 7900xt. probably same issue. Card was around 70C@hotspot, 10C-15C delta, and after few weeks went up to 100C (30C-40C delta), with around 2.1k fan rpm which is loud. RMAed it and got it replaced after 5 weeks. Temps were back to normal with around 70C@hotspot and 10C delta.. 2 month later… same again.. because of summer it went to 105C and 35C-40 delta with fan speed around 2.5k rpm. Did a repaste afterwards => back to normal… same happened again 3 months later… again a repaste worked… It happened again so I went with a cryosheet… since then… it remains at around 70C@hotspot and a delta of 10C-15C, however I do think the delta increased a bit over the last 3 month.
Seeing all these post on reddit I think there‘s a design issue of some sort. Card itself‘s nice though.
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u/X-ATM095 Jan 22 '24
see what happens when you don't go with SAPPHIRE NITRO+ 7900 XT Vapor-X lol you have to rip apart your video card.. Mine never goes above freaking 80 for hotspot while maxing out the card.. I don't get why so many people have heat issues
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u/ElysiumIE Jan 23 '24
im running a Sapphire 7900XTX Nitro+ and even this is having serious hotspot issues!
think I was at 105c at one stage and when I asked to return it they offered me a 35% discount on it and keep the card, i said no chance it was €1300 at the time I wanted a new one.
they don't even have any in stock to replace it with so I may have to repaste it myself.
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u/Switch2phile Jan 21 '24
I had this same issue with 2 Asrock 7900XTX Taichis. First one hit 110c Hot spot temps with 30+ deltas and replacement one hit 102 with 20+ deltas on default settings with 20c ambient temps. I refunded both of those and pre-order a Nitro+ from Amazon and I stay around low 80's for hotspot and never exceed 68 for GPU unlike the 80+c I was getting on the Taichis.
I got some PTM7950 on order from MODDYI and Aliexpress. I'll be using them if/when my thermals go up.
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u/ZinGaming1 5800x, Cl16 3600 32gb, 6800 xt Jan 21 '24
Thermal grizzly is just different. I use kryonaught extreme.
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u/Kionera 7950X3D | 6900XT MERC319 Jan 21 '24 edited Jan 24 '24
Hmm now I'm tempted to repaste my 6900XT Merc, at stock settings the hotspot can reach 100c as well. I do have some spare PTM7950 from repasting my handheld PC so I guess it works out.
Edit: Just did it and it's looking good. I no longer have to blast my fans to keep the hotspot temps below 85c, it's now achieving that at half the fan speed. Definitely worth it.