[WAD] CPU fan active

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JOURDAN83
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Joined: Fri Mar 15, 2019 3:39 pm

[WAD] CPU fan active

Post by JOURDAN83 »

Bonjour, le ventilateur du PC se met en marche bruyamment dès que je lance le jeu, avant même de charger un scénario ; le processeur graphique fonctionne à 16%, alors que ce processeur était à 0% pour un même scénario dans la version Command Modern Air Naval, sans aucun bruit de ventilation (carte vidéo Nvidia rtx 2070 8 GB, processeur i9, ram 32, 2.80 Ghz)
Dimitris
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Joined: Sun Jul 31, 2005 10:29 am
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Re: ventilateur actif

Post by Dimitris »

Hello and welcome, this is an English-speaking forum.

What you are describing is known behavior; the way that Command processes events during idle (ie. scen not running) has changed since IIRC CMO v1.07 for a number of reasons. This has resulted in one core being fully engaged even when a scenario is not executing.

There are various ways to compensate for that; for example, you can use programs like Fan-Control to precisely control the fan behavior on your system.

Thanks.
Nikel
Posts: 3234
Joined: Tue Mar 24, 2009 10:51 am

Re: [WAD] CPU fan active

Post by Nikel »

There has been an improvement here with respect to the CPU, at least in my laptop.

From 16% to 8% while idle. This happens since B1852, reported in the thread linked below.


Image


https://forums.matrixgames.com/viewtopi ... 4#p5222264


I think that now it is the GPU, while idle, what causes more fan noise. In the pic, CMO is minimized so the GPU use is 0%.

But it is 32% (nVidia) or 40% (Intel) while iddle and maximized, and just with the Borders and Coastlines map layer. If you add more layers, more GPU, especially with the Intel.

Can something be done to reduce the GPU usage while idle and only the Borders and Coastlines layer?


For comparison. In the old laptop HD I have B1500 and can connect to it through a USB, this build was already 64 bits and DirectX 11, this is CMO idle, maximized and with Borders and Coastlines. And GPU0 is the Intel one not the nVidia.

These changes happened from builds 15xx to 16xx, from 10% GPU use to 40%, Intel.

B1500.png
B1500.png (18.65 KiB) Viewed 408 times
Nikel
Posts: 3234
Joined: Tue Mar 24, 2009 10:51 am

Re: [WAD] CPU fan active

Post by Nikel »

There must be a reason for this, but I do not know what it is :)

In B1500, GPU use in % was bigger using nVidia than Intel. CMO idle, maximized.


B1500 nVidia.png
B1500 nVidia.png (19.81 KiB) Viewed 393 times
B1500 Intel.png
B1500 Intel.png (20.2 KiB) Viewed 393 times




And this happens right now.


B1877 nVidia.png
B1877 nVidia.png (20.8 KiB) Viewed 389 times
B1877 Intel.png
B1877 Intel.png (21.82 KiB) Viewed 389 times
Nikel
Posts: 3234
Joined: Tue Mar 24, 2009 10:51 am

Re: [WAD] CPU fan active

Post by Nikel »

A table to see the differences better. CMO idle, maximized, map layer only Borders + Coastlines.


Table.png
Table.png (7.74 KiB) Viewed 385 times



Adding the CPU to the table, and not only % increase, but also percentage points. Much more in %, but less in pp, with respect to the GPUs.


CPU%pp.png
CPU%pp.png (15.15 KiB) Viewed 370 times
Dimitris
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Re: [WAD] CPU fan active

Post by Dimitris »

I mean sure, we can undo the changes that led to where we are at the moment. Of course this will cancel the fixes to the problems that created these changes in the first place.

Then, when people start asking "hey, didn't you fix [this problem] and [that problem] a while back? Why is this now happening again?"... we can tell them we fixed them indeed, but a few users didn't like the spike on their CPU and GPU loads and they were very vocal about it.

Then both camps can have a mud-wrestling tournament, and the winner will get a cookie.
Nikel
Posts: 3234
Joined: Tue Mar 24, 2009 10:51 am

Re: [WAD] CPU fan active

Post by Nikel »

:lol:


Well, AFAIK only 3 people have reported this fan noise problem when idle.

The other camp must be many more.

Give them the cookie.
JOURDAN83
Posts: 5
Joined: Fri Mar 15, 2019 3:39 pm

Re: [WAD] CPU fan active

Post by JOURDAN83 »

Merci pour vos réponses rapides et détaillées ; si la situation vous parait normale d'un point de vue informatique, pour moi joueur cela reste une anomalie de développement ; malheureusement, je vais devoir me tourner vers la concurrence et abandonner ce jeu que j'adorais et sur lequel je m'étais beaucoup investi.
Dimitris
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Joined: Sun Jul 31, 2005 10:29 am
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Re: [WAD] CPU fan active

Post by Dimitris »

JOURDAN83 wrote: Wed Jun 24, 2026 9:04 am Thank you for your quick and detailed answers; while the situation may seem normal to you from a technical point of view, for me as a gamer it remains a development anomaly; unfortunately, I will have to turn to the competition and abandon this game that I loved and in which I had invested a lot of time and effort.
Dimitris
Posts: 15724
Joined: Sun Jul 31, 2005 10:29 am
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Re: [WAD] CPU fan active

Post by Dimitris »

For some reason I get flashbacks to this:

Image
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