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HWInfo 6.42 Shows GDDR6X Memory Temperature on Nvidia RTX 30 Series GPUs

27 Jan
2021

One of the most problematic sides of using the latest Nvidia GeForce RTX 30 series GPUs for mining Ethereum is the fact that their video memory gets really hot and up until recently there was simply no tool to give you an idea how hot that is. Thanks to the latest HWiNFO version 6.42 you can now monitor the operating temperatures of the GDDR6X video memory of your RTX 3080 and RTX 3090 GPUs and take the appropriate measures to keep things cool for ensuring maximum performance and problem free operation on the long run. Have in mind that you might actually be quite surprised when you see the actual numbers being really high, but that is to be expected, considering the fact that even the surface of the backplate of the video card gets quite hot when we touch or measure it.

Just download and run the latest HWiNFO, you can even use the portable version, go to Monitoring and start Sensor status and then scroll down to the GPU data and see what you get reported as GPU Memory Junction Temperature data (right under the GPU Temperature). On the left image you can see the idle video memory temp we see on an ASUS EKWB GeForce RTX 3090 GPU and on the right the temperature of the video memory after we run PhoenixMiner with the tweaked RTX 3090 in order to give us 120 MHS hashrate for Ethereum mining. We get 36 degrees idle temperature, but when mining it bumps up to 92 degrees Celsius and this is a water-cooled GPU with the GPU temp going just about to 50 C under load.

A note regarding the new GDDR6X Memory Junction Temperature:
Just like in case of Navi, this is not the external (case) temperature, but internal junction temperature measured inside the silicon.
So don’t be scared to see higher values than other common temperatures, it’s expected. Also the limits are set respectively higher (throttling starts around 110 C).
EDIT: Adding that the value reported should be the current maximum temperature among all memory chips.

Checking the backplate of the water-cooled RTX 3090 with a FLIR thermal camera showed that at stock settings when mining you get around 72.8 C (the hottest spot) and with overclocked memory the hottest spot on the backplate where the memory chips are is 75.8 C. No wonder we got such high temperatures measured considering that the actual operating temperature of the memory is 92 degrees under the backplate. So, adding extra cooing fans on top of the backplate is definitely a must if you plan on using RTX 3090 for mining Ethereum. The same also goes for RTX 3080 when used for mining, though with the RTX 3070 and 3060 Ti the situation could be better due to the lower power usage they have and the GDDR6 memory they use (not the faster and hotter GDDR6X), especially when optimized for mining. We need to further explore the memory temps with these two, meanwhile if you check what temperatures you are getting with HWiNFO on your GPUs feel free to share results in the comments below.

Update: The just released updated HWiNFO v6.43–4380 Beta version comes with added support for Monitoring GPU HotSpot Temperature for Nvidia GPUs, so you might want to also check out this new parameter when using Nvidia video cards for mining crypto currencies such as Ethereum (ETH). This feature can be helpful in detecting issues with problematic GPUs that otherwise do seem to be operating fine, but are not running stable when mining, because of potential problems with proper cooing of the whole graphics processor due to bad thermal paste, not good contact with the cooler for the whole chip surface etc.

– To download and try GDDR6X monitoring with the free HWInfo 6.42 diagnostic software…






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5 Responses to HWInfo 6.42 Shows GDDR6X Memory Temperature on Nvidia RTX 30 Series GPUs

Fal Falun

January 29th, 2021 at 17:35

GDDR6X memories are only in 3080 and 3090. 3070 uses regular GDDR6.

David Choi

February 7th, 2021 at 15:46

Thanks for this post. I’m running an ASUS GeForce RTX 3090 and my GPU Memory Junction Temps run on average 104. I don’t think I have enough space in my case to install additional cooling fans on the backplate (I squeezed this thing into my Dell XPS 8930). Do you think this card won’t last long under these conditions?

Globe

February 16th, 2021 at 20:26

@David Choi – micron say the max operating temp of GDDR6X is 95C. Many articles have said that running at constant 100-110C (which is what most people’s cards will run unless watercooled) becomes potentially dangerous, and simple common sense would likely agree with that hypothesis.
Run anything at temps significantly over manufacturer guidelines and you risk premature failure, however long that may take.
Supposedly Nvidia have said somewhere that they don’t see a problem, but they are hardly going to say that their hardware will fail when there’s such a demand for GPU’s and heated competition from AMD, and of course the impact of the pandemic on profits.

Plain and simple, it’s a gamble, but you knew that before firing up the mining software.

For what it’s worth, I am mining on a single RTX3080 when I sleep/not gaming but have a very conservative approach.
My card will run at 97 mh/s if I don’t care that it may not be alive one morning after running at 104-106C night after night.
But I purchased for gaming primarily, so I do care if it dies as getting another one is nearly impossible.
With good case cooling (not watercooled) and playing around with GPU settings I am seeing solid 94C HWInfo64 Memory Junction Temp with the following results:

81 mh/s, 870Mhz core clock, 53C GPU Core temp, 62% power limit, +450Mhz mem OC, 188W power consumption (reported in HWInfo64)

ETH might climb in price so I make money when sleeping regardless, or it might flop and it’s only the small additional electricity cost of leaving my PC running overnight.
Good luck.

Volteau

April 15th, 2021 at 04:24

Igor’s Lab (the best at what they do) did a series of experiments and explanations that completely override anything “Micron” says. In it, they mention 120* C as the threshold for when the chip starts being damaged, and Nvidia has a built-in safety measure that doesn’t let it pass 110*C. So the fear mongers are either that, or just very ignorant…

Igor’s Lab link: https://www.igorslab.de/en/gddr6x-am-limit-ueber-100-grad-bei-der-geforce-rtx-3080-fe-im-chip-gemessen-2/

Joe

June 3rd, 2021 at 00:42

@Globe (if you still read this after several months)
I have a MSI 3080 Ventus. Ran into memory temps of 110°C where it started throttling and fans ramped up to 100%.
All I had to do was change the thermal pads on the front (here in Germany 15€ on Amazon for thermalright odysee 2mm, 1 pack is enough). Also changed the fans to Arctic P12 PWM strapped to it with zip-ties. And added a pinch of thermal paste on every memory module and between pad and heatsink and repasted the GPU-chip. Left the rest of the thermal pads in place. Propably the better pads on the VRAM would have been enough ;-) It’s now running at 90-92°C Mem Junction in a closed case (at 98-100 MH/s with 1200 MHz Memory-OC and locked at 715mV/1200MHz), is more silent, and I feel much safer.

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