fixed CPU runs +20° hotter in idle after update to 2.9.16.10523.

[inZane]

20 minutes ago, ghostmail1999 said:

Just now in single player, after 15 minutes of playing the Afghanistan map, it's just a flipbook. The CPU cores are around 80 degrees. The multiplayer servers should downgrade so that we can play again with the stable version 2.9.15.9599.1 - May 5, 2025.

Each owner of the server would have to be the ones to make that decision, not ED. As for cores around 80c will depend on a number of things. What is your CPU? What is your idle (pre-DCS launch) temps, your temps in menu. Are you air cooled, AIO, custom water? Depening on some of those factors will determine your temps. Also, what is a temp of another DX11/12 game that you have that will push your system/graphics?

[TheBiggerBass]

vor 16 Stunden schrieb BIGNEWY:

Ive asked the team to look into it, it seems to be an AMD thing. I am using INTEL so can not test it personally. 

Can anyone check AMD efficiency mode, by default it should be on but some disable it. Let me know if you had it disabled. 

thanks 

 

 

It's not an AMD only issue. Got the same after updating to 2.9.16.10523 running on an i9-14900K.

However, I suggest to look for GPU load 1st. The CPU does not show more load, but the GPU load has drastically increased (from <5% to approx. 40% in idle on my system).

Edited May 23 by TheBiggerBass

[Morrowind]

 

1 hour ago, inZane said:

Each owner of the server would have to be the ones to make that decision, not ED. As for cores around 80c will depend on a number of things. What is your CPU? What is your idle (pre-DCS launch) temps, your temps in menu. Are you air cooled, AIO, custom water? Depening on some of those factors will determine your temps. Also, what is a temp of another DX11/12 game that you have that will push your system/graphics?

The point is pre patch the game didnt run at 70c plus at the home menu and everything was running about 20c cooler or more for the people posting here in game prior to the patch that just released.

[icedstar]

My pc specs are 

Ryzen 9 5950 + AIO 360mm
RTX 3080 GPU

I used to run DCS anywhere from 55c to 60c and after the latest patch my temps go all the way up to 70c in the menu and up to 80c in a mission while using the F10 map. 

And before someone says that 80c is a fine temp for a CPU, I know it won't melt my PC but the fact is that there is a 20c bump in temps since the lastest patch so something is clearly wrong with it. 

On the GPU side I see normal temps or even slightly better temps than before but the difference is 1 or 2 degrees. 

[SOLIDKREATE]

I'm part of this too. My fans are going nuts and my water cooler is too. Even when I'm on the carrier deck. When I get back on tonight I will post some pics.

[rob10]

At this point it's reported and BigNewy has said the dev's have reproduced it, so not sure what purpose more pics will actually serve.  It's an issue, for some, and ED is working on it.

[sleighzy]

Please replicate the issue and then attach your C:\Users\username\Saved Games\DCS\Logs\dcs.log file (just a text document named "dcs" if your Windows is hiding file extensions).

[Kevin509]

Can confirm I'm also having this problem on my AMD system. 

Getting 70 plus degrees at idle in the main menu with the current version, vs 40 degrees in the menu with the most recent previous version.

If anybody needs it, I had ChatGPT make me a command prompt to revert to the previous version, which I can confirm worked for me:

@echo off
cd /d "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin"
DCS_updater.exe update 2.9.15.9599.1@openbeta
pause

[Temetre]

I think people get really confused, the temperature is not the problem. If your CPU is being used to 30-50% and already runs 90+C, then your cooling sucks. A game cant make your CPU run hotter for the same work. 

The actual problem is just a DCS performance issue, for some reason even sitting in the main menu it creates a ton of CPU usage. See this weird spikey graph:

[speed-of-heat]

26 minutes ago, Temetre said:

I think people get really confused, the temperature is not the problem. If your CPU is being used to 30-50% and already runs 90+C, then your cooling sucks. A game cant make your CPU run hotter for the same work. 

The actual problem is just a DCS performance issue, for some reason even sitting in the main menu it creates a ton of CPU usage. See this weird spikey graph:

so i am seeing similar to this in my AMD 9800x3d in main menu, what i am not seeing is a massive temperature increase as described by other users 

Edited May 24 by speed-of-heat

[A n Y]

For those who don't want to go back to an older version and have a powerful PC and a problem with temperatures. Temporarily lower the turbo boost on the processor in the bios or turn it off. Those who don't go into the bios can achieve a similar result in windows in the power options and reduce the cpu performance % I have 99% and turbo is turned off. Frequency drops from 4.9Ghz to 3.7Ghz temperature 70C to 36C.

[Baldrick33]

2 minutes ago, speed-of-heat said:

so i am seeing similar to this in my AMD 9800x3d, what i am not seeing is a massive temperature increase as described by other users 

I have not even looked at temps but my 5800x3d is running more cores at 100% whilst anecdotally it feels like it is taking longer (which is why I looked)

[A n Y]

46 minutes ago, Temetre said:

I think people get really confused, the temperature is not the problem. If your CPU is being used to 30-50% and already runs 90+C, then your cooling sucks. A game cant make your CPU run hotter for the same work. 

The actual problem is just a DCS performance issue, for some reason even sitting in the main menu it creates a ton of CPU usage. See this weird spikey graph:

the picture shows why you have no problem your cpu is evenly loaded. My cpu is not evenly loaded until the previous patch two cores were loaded to 100% in the current version it is three cores at 100%. And here it depends what cpu you have and what operating system you use. My cpu with win 10 when loaded with 3 cores at 100 will drive the frequency to max frequency and thus experience a temperature and power spike. And I have Noctua NH-D15 cooling and 5 fans take care of air circulation in the case.

Translated with DeepL.com (free version)

 

 

for a better idea with hyper threading turned off

 

 

[Gunfreak]

dcs.log

[Kanelbolle]

11 minutes ago, Gunfreak said:

dcs.log 400.25 kB · 1 download

Log analyser on DCS discord points to Nvidia Drivers

• If you have stability or performance issues pointing to your GPU, rollback the GPU driver to version 566.36,
• Disable Core Parking.,
• Verify that this is configured correctly in Windows:
  • Game Mode disabled,
  • Hardware accelerated GPU scheduling disabled,
  • Core Isolation disabled

 

Tuning Tips

 

• Remove the OH6GunnerExport script for performance reasons.,
• Consider using DLAA.,
• Turn off SSLR.,
• Turn off SSAO.,

Tuning tips are recommendations for better FPS based on your CPU, GPU and RAM. They might result in slightly decreased display quality.

[ghostmail1999]

vor einer Stunde schrieb A n Y:

Für diejenigen, die nicht zu einer älteren Version zurückkehren wollen und einen leistungsstarken PC und ein Temperaturproblem haben. Senken Sie vorübergehend den Turboschub auf dem Prozessor in den Bios oder schalten Sie ihn aus. Wer nicht in die Bios geht, kann ein ähnliches Ergebnis in den Fenstern in den Leistungsoptionen erzielen und die CPU-Leistung reduzieren, die ich zu 99 % habe, und der Turbo ist ausgeschaltet. Die Frequenz sinkt von 4,9 GHz auf 3,7 GHz Temperatur 70 °C auf 36 °C.

Thanks for the temporary solution. It works great. I highly recommend this approach..

 

 

[Cupra]

Can temps be watched with normal Windows tools or do you need some special programm?

[speed-of-heat]

normal windows tools, like HWInfo or MSI Afterburner will do just fine

[pegasus1]

I checked last night and i cant see any difference on my 9950x3d whether using just the cache cores, just the performance cores or all 16 cores, temps are all around what id expect.

Still hitting around 5.7ghz on the cache cores and 5.9ghz on the performance cores and that was running a huge mission with 120 planes up and around 1000 missiles in the air.

Also guys, using other peoples quoted CPU temps as a reference to your own doesn't work unless they also quote room/case ambient so you are comparing Delta to Delta.

Hitting 90c isnt an issue if the ambient is 30c, hitting 90c in an igloo is a big issue.

[Temetre]

vor 1 Stunde schrieb A n Y:

the picture shows why you have no problem your cpu is evenly loaded. My cpu is not evenly loaded until the previous patch two cores were loaded to 100% in the current version it is three cores at 100%. And here it depends what cpu you have and what operating system you use. My cpu with win 10 when loaded with 3 cores at 100 will drive the frequency to max frequency and thus experience a temperature and power spike. And I have Noctua NH-D15 cooling and 5 fans take care of air circulation in the case.

Translated with DeepL.com (free version)

Windows says I got 50% average CPU load, which is way too much for the menu. So I definitely have the problem, just to a lesser degree. My CPU also has 65 watt TDP, so with a solid cooler and airflow its not gonna get very hot even at max power draw.

And either way the point is that people getting worried about the temperature is mostly born of ignorance. Yes, the CPU shouldnt work that hard in the DCS menu, but thats all there is. It works hard so it creates the quivalent heat from it; and the CPU itself is literally built to work as hard as possible. Your CPU maxing 3 cores and running at 70C is even very far from the load it can handle. You should stress test your CPU to see how it actually acts under max load.

Like, 70 degrees is pretty cool for CPU under load. People getting worried about that temperature is just wasted energy. And the idea that "DCS makes my CPU somehow go more hot than it should" is magical thinking. Same way how people thought New Worlds was killing their 3090s, when it had nothing to do with the game specifically.

 

Edited May 24 by Temetre

[Gunfreak]

1 hour ago, Kanelbolle said:

Log analyser on DCS discord points to Nvidia Drivers

• If you have stability or performance issues pointing to your GPU, rollback the GPU driver to version 566.36,
• Disable Core Parking.,
• Verify that this is configured correctly in Windows:
  • Game Mode disabled,
  • Hardware accelerated GPU scheduling disabled,
  • Core Isolation disabled

 

Tuning Tips

 

• Remove the OH6GunnerExport script for performance reasons.,
• Consider using DLAA.,
• Turn off SSLR.,
• Turn off SSAO.,

Tuning tips are recommendations for better FPS based on your CPU, GPU and RAM. They might result in slightly decreased display quality.

That's what the AI always says.

This is not some minor performance bug, it has broken the game. my GPU is idle during gameplay. 
We aren't talking 10 or even 20 FPS drop, we are talking 120+ FPS drop. It's broken.

[Temetre]

Theres a big performance bug currently, causes a ton of CPU load. For some its not as bad, eg my game runs somewhat worse but playable even in VR, but for others DCS became nearly unplayable.

I imagine thats your issue. Seems like theres nothing you can really do about it.

[Gunfreak]

1 minute ago, Temetre said:

Theres a big performance bug currently, causes a ton of CPU load. For some its not as bad, eg my game runs somewhat worse but playable even in VR, but for others DCS became nearly unplayable.

I imagine thats your issue. Seems like theres nothing you can really do about it.

One thing is CPU load. But why would that cause my GPU to idle? It's literally sitting at 10-20% usage and 30C so just idling. Not engaged at all .

[Temetre]

Gerade eben schrieb Gunfreak:

One thing is CPU load. But why would that cause my GPU to idle? It's literally sitting at 10-20% usage and 30C so just idling. Not engaged at all .

Thats normal behaviour. Basically, usually in games you hit a 'bottleneck' in your PC, which could be CPU, GPU, memory and other things. Im gonna oversimplify it a lot (not like im an expert anyway):

For example, maybe your GPU could do 100 frames per second, and your CPU can only does 20 fps with the performance bug. But you need both to actually create a frame!

So that means that your GPU will create a frame in 10 miliseconds, but then has to wait for the CPU which needs 50 miliseconds. Hence 80% of the GPUs time might be spent waiting on the CPU to do its job, so the graphics cart can finally start to work on the next frame. That is then shown in the 20% GPU usage.

When you 'run out' of RAM/VRAM, you might also experience stutters. Thats a memory bottleneck, where the entire PC slows down to wait for files to be loaded into memory.

 

Most PCs and games these days tend to be GPU limited, meaning the GPU sees 100% usage and the CPU has to wait. I think thats why people often expect 100% GPU usage, but complex, CPU heavy games like DCS can be an exception. And in this case you probably have a performance bug that cripples CPU performance, so the GPU spends a lot of time waiting.

[Gunfreak]

6 minutes ago, Temetre said:

Thats normal behaviour. Basically, usually in games you hit a 'bottleneck' in your PC, which could be CPU, GPU, memory and other things. Im gonna oversimplify it a lot (not like im an expert anyway):

For example, maybe your GPU could do 100 frames per second, and your CPU can only does 20 fps with the performance bug. But you need both to actually create a frame!

So that means that your GPU will create a frame in 10 miliseconds, but then has to wait for the CPU which needs 50 miliseconds. Hence 80% of the GPUs time might be spent waiting on the CPU to do its job, so the graphics cart can finally start to work on the next frame. That is then shown in the 20% GPU usage.

When you 'run out' of RAM/VRAM, you might also experience stutters. Thats a memory bottleneck, where the entire PC slows down to wait for files to be loaded into memory.

 

Most PCs and games these days tend to be GPU limited, meaning the GPU sees 100% usage and the CPU has to wait. I think thats why people often expect 100% GPU usage, but complex, CPU heavy games like DCS can be an exception. And in this case you probably have a performance bug that cripples CPU performance, so the GPU spends a lot of time waiting.

Ah. Ok. Then there is hope. I was afraid I very unique problem. And would be left behind if that more common bug was fixed.  So I guess I'll just have to wait. Have others reported FPS as low as 5? I've seen other report big fps drops. But haven't seen talk about sub 10 fps.