You 4k 5090 superstars must be pumping out a steady 500 watts or more of heat. In short order, fans will spool up and computer make noise a plenty.

How do you enjoy the game's sounds with all the whirling fan noise? You all wear and use noise canceling headphones or something?

Then many minutes later, the room will continue to get rather warm, how is all that heat mitigated for you?

I have only a 14900K and 4070S but the computer runs cool and quiet. I just checked and my CPU is at 68C and the socket at 50C, well within specs. Cpu fan is at 1600 to 1800 RPM, so not loud at all.  GPU is at 62C, again well within range. I 4K but on high settings.

Same. The other thing to consider is that these chips can safely run at 80C my H170I has a shallower profile that I custom made based on core temperature instead of coolant temp. It has a very low tone humming noise. Not annoying at all. never had a BSOD due to overheating. 
 

My apartment stays at 74-76 degrees, it is in an open living room. In the past I had it in a corner of a smaller room. In the summer that room got warmer and because of low HVAC into that room it would heat up that room slightly. 
 

So, make sure you have good airflow into that room. Also, make sure you have a good curve on your fans / cooler that promotes low DBs. 

I can tune the fan sound out, it’s really not that bad.  There can certainly be some decent heat put out, particularly during a long simming session.  However, in the summer I don’t sim a whole lot as I’d rather be outside when the weather is nice, and the rest of the year it’s relatively cool in my basement so any added heat is well received!

A quality case (Lian Li O11d evo), cpu water cooled (Corsair Nautilus 360 RS) and a 4090 (MSI gaming trio) which runs much quieter and cooler than previous gen. 

My computer is very very quiet under load, and completely silent when it’s not running MSFS 24. 
 

Also Toronto doesn’t get very hot and my computer is in the basement which is nice and cool always. 

Edited September 16, 2025Sep 16 by JonathanC

RTX 4080, 14900k, six cores only with no hyperthreading, and slightly underclocked (5.4GHz to lower temps). 

This is with 4k ultra settings but with frames limited to 30 inside the sim but doubled to 60 with DLSS Frame Gen (max my monitor can take at 4k anyway). 
LODS on 200/400.  DLSS Quality setting.  Also running REX Atmos, and Sky4Sim pad.

Cool and quiet like Jonathan above.  Can't hear it in windows, and barely a whisper in MSFS2024.  I do have adjustable CPU water cooler fans though, so I turn them down so I can barely hear them.
Keeps the 14900k cool enough (around 85-90C) and not had any CTD,s for absolutely ages, and that is with some three hour sessions.  I am finding SU3 quite stable.
No stuttering or frame drops in 99% of situations, including large airports with traffic.  Very smooth experience and very happy with it.

I don't see much flat screen blurring with DLSS at 4k resolution and 120 on the sharpening.  Maybe I just don't notice it any more, but it certainly doesn't affect me now.  

Can't wait to see the SU4 performance improvements on top of this.  Not needing more frames, but should make it cooler and more consistent still.

I just hope they can solve the landing stuttering for those that have it.  For some strange reason I don't seem to suffer with it, but I am basically running at just 30fps + frame gen.  This has been the holy grail for me.

Edited September 16, 2025Sep 16 by bobcat999

Similar to some others input. A quality case with great air flow really matters, and now there are better case options than there have ever been. Also, a good AIO liquid cooler, which are also very affordable for quality ones, is preferable. They are super quiet and very efficient cooling. And they have been around for a long time, and I have used AIO liquid coolers in over 20 PC builds and never had any leaking problems, before someone brings that up. It's really not much of a risk. On top of that, I live in Colorado at 6400 feet elevation, where even in the height of summer it might reach 88 degrees at most. My PC room is in my nice, cool finished basement in a large open space. I cannot even hear it running, especially when flying and listening to music or watching a movie or sporting event. And before anyone blames me for electricity use, my home and electronics run on solar power, so there is that. 

1 hour ago, VeryBumpy said:

You 4k 5090 superstars must be pumping out a steady 500 watts or more of heat. In short order, fans will spool up and computer make noise a plenty.

How do you enjoy the game's sounds with all the whirling fan noise?

Only if you run with an unlimited framerate. I've only got a 5060Ti for 1080p, but if I let my framerate unlocked, the GPU fans can simulate the noise of aircraft engines. As real as it gets 😝

As soon as I lock my GPU to a reasonable framerate, its fans stop screaming.

Interesting post. 

I run MSFS2024 with a mix of high and ultra settings, ray tracing, hidef Aircraft, Scenery, all the bells and whistles in 4K on a 4070TiSuper and Ryzen 7 7800X3D CPU, 64GB Ram, ~60-80FPS on the ground ~80-100 in the air, and ....... what noise?

2024 is the best, love every minute of it with my comfortable PC silence and a great set of headphones.

Jase

Edited September 16, 2025Sep 16 by MassiveSim32

2 hours ago, VeryBumpy said:

 

How do you enjoy the game's sounds with all the whirling fan noise? You all wear and use noise canceling headphones or something?

Then many minutes later, the room will continue to get rather warm, how is all that heat mitigated for you?

Just like in small aircraft!  ANR headset to fight the noise and open vent to fight the heat LOL

2 hours ago, VeryBumpy said:

You 4k 5090 superstars must be pumping out a steady 500 watts or more of heat. In short order, fans will spool up and computer make noise a plenty.

How do you enjoy the game's sounds with all the whirling fan noise? You all wear and use noise canceling headphones or something?

Then many minutes later, the room will continue to get rather warm, how is all that heat mitigated for you?

PCs don;t work that way. They do not put out enough to heat a large room up. The same can be said of a dash AC system trying to cool the interior of a large class A RV.

6 hours ago, VeryBumpy said:

How do you enjoy the game's sounds with all the whirling fan noise?

By buying a case that has good airflow coupled with good fans. I always replace my case fans with arctic p12s and p14s. Dead quiet even at load. 
 

though I don’t have a 5090, it’s good advice. 

I run my 9800X3D with all core -25, fan of the CPU cooler never goes above 600rpm, barely recognizable (NH-U14S). My 4090 is undervolted to 0.950V@ 2600MHz, hardly reaching 250W usage for the same FPS as stock. All mounted in a North XL case equiped with 5x Silent Wings 4 PWM fans (3 in the front, one in the back behind the CPU cooler and one in the top), coupled to the GPU temps and never going above 600rpm neither. 

Means: neither heat or noise issues. Under full gaming load, the GPU fans are audible but the sound is louder. In desktop load, the whole system is practically full silent. 

 

 

 

 

Edited September 16, 2025Sep 16 by aerostar

 

 

I made a window interface board to connect a Portable Air Con unit to and also an output hose from my PC cupboard under the desk.  

Since this pic I've added an input hose to the aircon, to make a balanced pressure for the room....     is great in the summer.

In the winter the board comes down and the PC is a heater.

Edited September 16, 2025Sep 16 by aerostar