MSI RTX5080 Suprim - Wrong Power draw sensor data (shows 140W on idle, but its ~30W)

vovanok199158e02e0

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Hi, I recently got a brand new MSI RXT5080 Suprim SOC.

And I’m running into a strange issue: my GPU is drawing 140W of power even when it’s completely idle - no load, nothing running at all. I’ve confirmed this with MSI Afterburner, as well as GPU-Z and HWInfo.

Here are the details:
  • GPU State: P8 (idle)
  • Temperature: 30°C
  • Reported Power Consumption: 140W (at idle)
  • The real power consumption of the whole PC is less than 50W, measured with an external power meter
I’ve tried reinstalling the Nvidia drivers (tried both the latest and an older version) and resetting the UEFI settings to defaults, but the issue persists. I also tried it on a clean Windows setup.
Has anyone experienced something similar? Any suggestions on how to fix this or what might be causing it? Appreciate any help!

As you can see the power draw is 140W, and the PerCap Reason is Pwr, but the GPU clock is low and temp is low:
1745484933714.png


Same in HWInfo:
1745485094945.png


Specs:
1745484981521.png


1745485135421.png
 
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The real power consumption of the whole PC is less than 50W, measured with an external power meter
What exactly meter is that?

And I’m running into a strange issue: my GPU is drawing 140W of power even when it’s completely idle - no load, nothing running at all. I’ve confirmed this with MSI Afterburner, as well as GPU-Z and HWInfo.
What's the full system spec? What monitor(s) are you using?
 
What exactly meter is that?


What's the full system spec? What monitor(s) are you using?
Full specs of the PC:

1. CPU - Intel i9 12900K
2. Motherboard - MSI Z690 Carbon Wifi
3. PSU - be quiet! straight power 11 1000W
4. GPU - MSI RTX5080 Suprim SOC
5. M2 SSD - Kingston KC3000
6. RAM - Kingston Fury 32GB DDR5
7. Monitor - LG38GN950 3860x1600 144Hz

I don't think it's related to the monitor, since I decided to start the PC with intel embedded GPU (used motherboard display port), the Nvidia GPU still reports high power level consumption even without any connected monitors.

I used a wall socket power meter which shows how much power the electrical device consumes, similar to this one:

1745495887172.png
 
I suspect the internal GPU meter decalibrated and now shows wrong values, which is strange because 2 days ago it worked well.
It does not impact the performance, the card keeps 2800MHz GPU boost under load and shows good results.
 
Wow! First wrong temp readings, now what looks like wrong power readings. This is getting insane! I wonder if all the senior Nvidia driver guys got shuffled off to the A.I. division. Or perhaps this is the result of letting that same A.I. try and write code. Either way, it's not a good look for a multi-trillion dollar company.
 
So it suddenly changed to this strange behaviour?
I don't think there's such thing as decalibration. And under load, does the value change at all?
Can you uninstall Nvidia drivers using DDU and install Nvidia Driver Version: 572.83 ? Avoiding 2 of the "latest" versions, which are a mess.
 
So it suddenly changed to this strange behaviour?
I don't think there's such thing as decalibration. And under load, does the value change at all?
Can you uninstall Nvidia drivers using DDU and install Nvidia Driver Version: 572.83 ? Avoiding 2 of the "latest" versions, which are a mess.
Exactly, I have the MSI Afterburner on-screen monitor, and a few days ago I noticed that the game which previously used 150W started to consume 250W. Then I noticed that the iddle power use is 140W.
I tried reinstalling drivers, windows, I even installed linux to see the nvidia-smi output:
1745499469244.png


In fact, the value increases under the load. In games I can see value up to 360W, so under load its more accurate.

So I am looking for reasons of the issue:
- is it PSU
- 12VHPWR connector
- motherboard issue
- GPU hardware issue

or something else
 
So I am looking for reasons of the issue:
- is it PSU
- 12VHPWR connector
- motherboard issue
- GPU hardware issue

or something else
Do you have an Overclock in place or using Afterburner fan control?

If you do Reset Afterburner back to defaults, turn off User overrides like power settings

Do not set AB to start with Windows
 
Do you have an Overclock in place or using Afterburner fan control?

If you do Reset Afterburner back to defaults, turn off User overrides like power settings

Do not set AB to start with Windows
I have done some undervolting, but the issue is not related to MSI Afterburner. I made a clean Windows installation and on the first run measured the power draw with GPU-Z - still the same issue.
 
The HWInfo maintainer suggests that the issue is with the driver, however I am not sure about it. I tried the older 572 drivers and the latest 576, and both same issue.
I now suspect the hardware issue. Unfortunately, I don't have another PC to test it out within external hardware (PSU/Motherboard/etc)
 
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The HWInfo maintainer suggests that the issue is with the driver, however I am not sure about it. I tried the older 572 drivers and the latest 576, and both same issue.
I now suspect the hardware issue. Unfortunately, I don't have another PC to test it out within external hardware (PSU/Motherboard/etc)
You're right. You did mention that multiple apps gave you similar readings.

Do you have the ability to connect it to a different display? Even a TV via HDMI might tell you something if the idle power readings change. Obviously, you'd have to be mindful of how the display frequency would impact readings. You could also try changing the motherboard PCIe speed to see if that influences power readings in a way that would seem to be more accurate. I can't imagine that the PSU would make any difference.
 
You're right. You did mention that multiple apps gave you similar readings.

Do you have the ability to connect it to a different display? Even a TV via HDMI might tell you something if the idle power readings change. Obviously, you'd have to be mindful of how the display frequency would impact readings. You could also try changing the motherboard PCIe speed to see if that influences power readings in a way that would seem to be more accurate. I can't imagine that the PSU would make any difference.
when i connected an old monitor via display port 1920x1080 60Hz it did change a little bit, instead of 140W it shows 130W. So the sensor reacts but looks like it's not calibrated well.
 
They did tell you it's a driver issue.
If you think it's a sensor then RMA it. Though faulty sensors tend to either disappear or show crazy values.
 
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