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Summary

GPU-Z and HWiNFO64 are both seeing that the RTX 5090 no longer reports anything for the "Hot Spot" temperature.

 

Quotes

Quote

With Blackwell, NVIDIA has removed the "Hot Spot" sensor, you still have access to "GPU Temperature" and "Memory Temperature". While there was always some drama around Hot Spot, it was useful to diagnose a misaligned cooler or waterblock.

 

My thoughts

I know I'm not getting a 5090, water cooling it even more so. Seems silly of nvidia to remove a useful feature. But the Hot Spot sensor isn't displayed in Task Manager.

 

Sources

https://www.techpowerup.com/review/nvidia-geforce-rtx-5090-founders-edition/45.html

https://www.thefpsreview.com/2025/01/23/nvidia-geforce-rtx-5090-founders-edition-video-card-review/9/

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https://linustechtips.com/topic/1597892-rtx-50-series-hot-spot-sensor-gone/
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Hot spot was never really a useful feature. All it did was have people spam questions of "is this hot spot something I should be worried about" and the answer is no. Sometime giving the end user to much information just ends up being noise. 

If we have chiplets the temp for each chiplet may be useful in case the z height of one is off like with the powercooler RDNA3 cards, but hotspot just scares people. 

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24 minutes ago, starsmine said:

Hot spot was never really a useful feature. All it did was have people spam questions of "is this hot spot something I should be worried about" and the answer is no. Sometime giving the end user to much information just ends up being noise. 

If we have chiplets the temp for each chiplet may be useful in case the z height of one is off like with the powercooler RDNA3 cards, but hotspot just scares people. 

It can be a good indication for why a GPU is throttling. Of course it depends on architecture. It is indeed strange because the 5000 series feature such a large die

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I an guessing it probably still have a hotspot number, it's just not shared outside the card.

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My first guess would be that the sensor's hardware address changed (or however that works technically) and software needs to be updated to support it.

 

Or maybe it is simply no longer exposed as a metric to software.

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24 minutes ago, Eigenvektor said:

My first guess would be that the sensor's hardware address changed (or however that works technically) and software needs to be updated to support it.

 

Or maybe it is simply no longer exposed as a metric to software.

I'd guess that maybe the die is too large for it to be useful, as it would need multiple ones.

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I'd be surprised it it's physically not a thing, cause last I heard hotspot was a summary of multiple sensors and reported back was the hottest one of them all, not a single sensor placed by design in the hottest part of the GPU. NVIDIA touted that they worked with Microsoft to get new API access for their cores to work better thus the AI magic has impressive numbers. I so far believe the most that the "hotspot" we know is burried somewhere else.

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41 minutes ago, Kisai said:

I'd guess that maybe the die is too large for it to be useful, as it would need multiple ones.

Or maybe it now has multiple such sensors and software can't deal with that yet

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1 hour ago, Kisai said:

I'd guess that maybe the die is too large for it to be useful, as it would need multiple ones.

Im confused by this, there are already dozens of temp sensors on any chip, its not been just one for idk more then 20 years?

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Just now, starsmine said:

Im confused by this, there are already dozens of temp sensors on any chip, its not just one. 

Think about it. If the die is large, and the sensors have to be built into the chip.

 

Hotspot.jpg

https://www.igorslab.de/en/also-the-nvidia-geforce-rtx-3000-series-has-a-hotspot-temperature-first-measurements-and-comparison-with-amd/

Hotspot sensors highlighted on AMD Radeon VII (331mm, 64 sensors) and a RTX 5090 (750mm)

 

Either:

A) There's too many to address, or how it's read

or

B) it's not accessible the way the 3000/4000 parts are. Maybe liquid metal makes it not produce useful data and is only used internally to calibrations for the card.

 

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1 hour ago, Kisai said:

Think about it. If the die is large, and the sensors have to be built into the chip.

 

Hotspot.jpg

https://www.igorslab.de/en/also-the-nvidia-geforce-rtx-3000-series-has-a-hotspot-temperature-first-measurements-and-comparison-with-amd/

Hotspot sensors highlighted on AMD Radeon VII (331mm, 64 sensors) and a RTX 5090 (750mm)

 

Either:

A) There's too many to address, or how it's read

or

B) it's not accessible the way the 3000/4000 parts are. Maybe liquid metal makes it not produce useful data and is only used internally to calibrations for the card.

 

I’d wager that QC can probably access the temperature data during manufacture of the card. 

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  • 2 weeks later...
On 1/24/2025 at 6:39 PM, starsmine said:

Hot spot was never really a useful feature.

Not so. My 4070 Ti always ran loud and was throttling. GPU temp was "ok" but hotspot was 31deg higher. Turns out half the thermal paste was caked and crumbled. Repasted it and dropped GPU temps by 7 deg but hotspot temps by 20-25 deg. Card runs much quieter now.

 

Before digging into it, I had just assumed a 40 series card with a 2-fan cooler ran loud. A large discrepancy between GPU temp and hotspot temp is definitely a sign of something wrong.

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Not including the hotspot is stupid. No one cares if on average your temps are fine if part of the core or memory is spiking to 120°C. It's indication that something is horribly wrong with some part of the cooling and you just can't even know it now. Yay to progress.

 

We do burnin tests to measure worst possible conditions, not what's an average of it. It's like NVIDIA itself doesn't understand why hotspot is even there and having it used just internally is not helpful to no one. They are not at my computer to tell me what it is and I can't look at it myself thanks to their brilliant logic...

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so did they really remove or hide that sensor?  that doesn't bode well for "longterm owners" especially seeing power consumption of those things... (and yeah i know they don't always run at max, but then the clientele for the higher end cards is definitely the "must overclock everything" kind...)

 

On 2/2/2025 at 5:05 PM, RejZoR said:

We do burnin tests to measure worst possible conditions, not what's an average of it. It's like NVIDIA itself doesn't understand why hotspot is even there and having it used just internally is not helpful to no one. They are not at my computer to tell me what it is and I can't look at it myself thanks to their brilliant logic...

to me is more like those review embargos for unfinished pos games... "cant review our hotspot if we don't include it..." 😉

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It gets worse when you realize the 50XX series also has the same issue as the 40XX series with the connectors melting

There are already a few reports on reddit/Twitter. With the MSM making speculations on what is to blame.

 

One "reddit" user who lives in germany, said Der8auer is visiting him this week to investigate the GPU/the issues with the GPU.


 

╔═════════════╦═══════════════════════════════════════════╗
║__________________║ hardware_____________________________________________________ ║
╠═════════════╬═══════════════════════════════════════════╣
║ cpu ______________║ ryzen 9 5900x_________________________________________________ ║
╠═════════════╬═══════════════════════════════════════════╣
║ GPU______________║ ASUS strix LC RX6800xt______________________________________ _║
╠═════════════╬═══════════════════════════════════════════╣
║ motherboard_______ ║ asus crosshair formulla VIII______________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ memory___________║ CMW32GX4M2Z3600C18 ______________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ SSD______________║ Samsung 980 PRO 1TB_________________________________________ ║
╠═════════════╬═══════════════════════════════════════════╣
║ PSU______________║ Corsair RM850x 850W _______________________ __________________║
╠═════════════╬═══════════════════════════════════════════╣
║ CPU cooler _______ ║ Be Quiet be quiet! PURE LOOP 360mm ____________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ Case_____________ ║ Thermaltake Core X71 __________________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ HDD_____________ ║ 2TB and 6TB HDD ____________________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ Front IO__________   ║ LG blu-ray drive & 3.5" card reader, [trough a 5.25 to 3.5 bay]__________║
╠═════════════╬═══════════════════════════════════════════╣ 
║ OS_______________ ║ Windows 10 PRO______________________________________________║
╚═════════════╩═══════════════════════════════════════════╝

 

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2 minutes ago, darknessblade said:

It gets worse when you realize the 50XX series also has the same issue as the 40XX series with the connectors melting

There are already a few reports on reddit/Twitter. With the MSM making speculations on what is to blame.

 

One "reddit" user who lives in germany, said Der8auer is visiting him this week to investigate the GPU/the issues with the GPU.


 

Only worse if the incident rate is higher then what we had with the 8 pins. 

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9 hours ago, starsmine said:

Only worse if the incident rate is higher then what we had with the 8 pins. 

Which wasn't common either.

 

 

My opinion here is we need to wait and see a bit more, as there aren't that many 5090's in the wild.

 

If this is a serious problem, then I'm not buying a 50-series.

 

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7 minutes ago, Kisai said:

My opinion here is we need to wait and see a bit more, as there aren't that many 5090's in the wild.

 

If this is a serious problem, then I'm not buying a 50-series.

 

Feels like there are so little 5090's in the wild that even 1 confirmed case of it failing feels like a significant statistic.

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3 hours ago, Kisai said:

 

 

My opinion here is we need to wait and see a bit more, as there aren't that many 5090's in the wild.

 

If this is a serious problem, then I'm not buying a 50-series.


I may be in the minority here, but having a performant GPU isn't about maximum FPS, but rather maintaining a minimum FPS that meets your personal threshold. For example, most displays run at 60hz. If the GPU and game settings can guarantee that 60 FPS will be the minimum, why not just enable V-SYNC?? What's the point in setting the FPS to infinity (maximum possible FPS) if those extra frames will never reach your eyeballs anyways?

While it's true the customer shouldn't worry about if max GPU power draw will melt the connector, if you're smart about it you can just limit the FPS so as to not pose an issue. So, it is a problem but it can also not be if you're willing to step in to take proactive measures to mitigate this from occurring.

I guess the question is, how badly do you want that GPU?

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I think we should wait for 3 years and see how often people bring in their card for repairs because of overheating damage.

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Video of Der8auer is out regarding the melting issue of the 50XX series that is reported on reddit

 

 

╔═════════════╦═══════════════════════════════════════════╗
║__________________║ hardware_____________________________________________________ ║
╠═════════════╬═══════════════════════════════════════════╣
║ cpu ______________║ ryzen 9 5900x_________________________________________________ ║
╠═════════════╬═══════════════════════════════════════════╣
║ GPU______________║ ASUS strix LC RX6800xt______________________________________ _║
╠═════════════╬═══════════════════════════════════════════╣
║ motherboard_______ ║ asus crosshair formulla VIII______________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ memory___________║ CMW32GX4M2Z3600C18 ______________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ SSD______________║ Samsung 980 PRO 1TB_________________________________________ ║
╠═════════════╬═══════════════════════════════════════════╣
║ PSU______________║ Corsair RM850x 850W _______________________ __________________║
╠═════════════╬═══════════════════════════════════════════╣
║ CPU cooler _______ ║ Be Quiet be quiet! PURE LOOP 360mm ____________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ Case_____________ ║ Thermaltake Core X71 __________________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ HDD_____________ ║ 2TB and 6TB HDD ____________________________________________║
╠═════════════╬═══════════════════════════════════════════╣
║ Front IO__________   ║ LG blu-ray drive & 3.5" card reader, [trough a 5.25 to 3.5 bay]__________║
╠═════════════╬═══════════════════════════════════════════╣ 
║ OS_______________ ║ Windows 10 PRO______________________________________________║
╚═════════════╩═══════════════════════════════════════════╝

 

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