Morning all, I’m after some guidance for setting a better fan curve on my 9800x3d 3090 fractal design torrent pc
The factor fans seem to run at around 60% all the time witch’s gives off a slight annoying noise
Does anyone have any recommendations to make this case quieter?
I’ve already changed them to 30degree 20% 50degree 40% etc but now it seems to ramp up and down much more often then the original fan settings
Any help much appreciated
If talking about case fans:
Make sure the fans are set to use PWM (assuming they are capable.)
Make sure the case fan curves are responding to system temp, not CPU or PCIe temps.
If talking about CPU fan(s) or AIO radiator fans:
Make sure the fan curve(s) are responding to CPU temp.
Understand that the 9800X3D can run at 90°C all day without worry. Do you want it to run that hot? Obviously not, but the point is that you can set a CPU fan curve to remain around 30% and fairly flat until it reaches around 60°, then ramp up to 100% somewhere around 80°C.
In my system iCue controls the case fans, so I don’t have very granular control. I just set it to ‘Balanced’ and my system temp stays areound 30-35°C.
My 7950X3D air cooler is controlled in BIOS, and I have its curve set as described above. The max temp I see in the sim is around 75°C, and it’s normally around 60°C during flight.
My 3090 Ti is water cooled, and the pump and radiator fans are also controlled in BIOS. It runs around 50°C during flight, and more importantly, isn’t dumping tons of heat into the case.
Same kind of thing: 30% base, both ramping up with higher temps.
I can confirm that the fans are pwm controlled
Normally during flight my computer sits around 48/52 but with my current settings it seems to bounce all over. Ive never had a peak temp over 79 degrees yet so I might just leave it on factory settings not like it’s really really loud once you have noise from speakers it’s just slightly annoying
With factory settings I’m getting
CPU 48/54 in flight
System temp 46
Sys fan 1 1300pm
Fan 4 700rpm
Fan 5 1230rpm
With my current settings that I’ve messed on with I’m getting
CPU temp 51/55
System temp 43
Fan 1 913rpm
Fan 4 699rpm
Fan 4 1105
The noise is mostly from the front fans I think would that be system fan 1?
It baffles me how a reduced fan speed only effect cpu temps in a coupe degree but also reduced the system temps by 3 degree
I’ll do some more research into good curves as if possible I’d like to keep my pc from going over 75 when loading but maintain a temp of 50 or below if possible
I’m hoping someone with a similar system will come along with a good curve for this case
SYS fan 1,2,3,4 etc just refers to the fan headers on the motherboard. If cable length allows, any of the fans in the PC can be connected to any of the headers.
I would highly recommend the Fan Control app - it’s brilliant, free, and you can get it from here: https://getfancontrol.com/
This little gem allows you to control all of the fans in your PC exactly as you wish, including those on the GPU. The PSU is the only exception, for obvious reasons.
There are loads of tutorials on the site and online, but it’s really easy to set up, and it allows you to tweak and tinker around like nothing else. The original reason the project was created is the ability to ‘Mix’ fan curves. So, instead of your GPU getting hot, spinning up the fans for a few seconds and blowing the hot air up to the CPU, which then in turn gets hot and noisily spins up the AIO cooler or case fans, you can link fans inside the case and have them all respond to a particular sensor or sensors.
In the scenario above where the GPU is getting hot, and the heat then soaks up towards the CPU, fan control allows you to have all the pc fans react and ramp up together right away, so the CPU doesn’t need an extra burst from the fans attached to it’s cooler. If the CPU is running hot, you can have every fan in the PC ramp up immediately to bring in extra fresh air, and cool the whole thing down quicker than normal.
The variations are endless, but it’s easy to set up and then tweak as you prefer. Each parameter can be set and varied, so you can set a maximum temperature limit over your cpu for example, and let the app control the fans such that the processor never exceeds 80 degrees (or whatever you choose).
It also has a really useful function in identifying and testing the fans - you can command each one to stop, restart, run at max speed or whatever, and then you can rename them in the app. So instead of SYS Fan 2, Sys Fan 3 etc. you can clearly identify them as ‘Case Front 1’, ‘Case Rear Fan,’ CPU Fan 1’ etc etc.
It’s a brilliant app and well worth trying out, especially as it’ll cost you nothing. If you like it you can make a donation to the developers, but they don’t pressure you.
I’ll download this today or tomorrow and give it a try. I ideally want to keep the cpu around 50 as that’s what it’s been running at. It does only ramp up when loading into a flight etc then remains pretty stable around 48/52 I’ve only ever seen it go above 80 once when loading for a split second
It’s just the fans run around 12/1300 rpm where as I halved them and it was still around the same temp
I have a positive airflow case so not fans ■■■■■■■ the air out the back
Hoping to have it nice and quiet and stable and I guess the fans would last slightly longer running half the rpm they are now ? Or is this not the case and they’ll be fine for many years ? If so I might just leave it and turn the sound up more
Good luck with it, I hope you find it useful.
With my pc, which is completely different to yours, Fan Control operates my GPU fans and the case and AIO cooler fans, all of which are 140mm high-speed versions from either Noctua or Be Quiet.
The CPU idles around the mid 30’s when browsing, playing videos etc. Mid flight in MSFS 20 or 24 it sits at around 50-52 degrees, and when loading in or trying to land somewhere really busy it occasionally reaches very short peaks of 70 - 75 degrees. There no risk of thermal throttling at these temperatures, and the noise from the case is as quiet as it can be.
The GPU is usually the noisiest part, but I can’t do anything about the factory fans fitted to that, despite it being the quietest 4090 tested when I bought it. Like the CPU, it idles in the mid-30’s, and reaches a max of 75-77 degrees at the hotspot.
Given the expense and level of performance your PC has, I honestly wouldn’t be too worried about fan longevity. Apart from the 200mm factory fans in the Fractal case, I can’t tell what others you have in there but I personally think cooling and noise are more important than whether they last 150,000 hours or 240,000 hours. Operate them to keep temps and noise in check as much as possible or as you prefer, and if a fan should happen to expire they are not expensive or difficult to replace.
I have a Noctua NH-U12A cooler on my 9800x3d
I’ve just upped the cpu cooler fans for now as I’m using sim rate quite a lot while using the small aircraft until I can get a airbus or something then I’ll not use sim rate
In cruise the system is around 48 degrees and the cpu is around 48/54 ish so I think that’s pretty good
Loading into game and using sim rate it goes up to mid to high 60 I’m guessing due to loading everything so I think I’ll be fine
Over the last few days it has idled a few degree higher but up here in northern England the temps have rose about 15 degrees so I think that’ll be normal
As for fans I just have the standard factual fans in the pc think there are 2 180 and 3 130 fans
Maybe I’m worrying over nothing as it seems stable around 50 while in cruise it’s just when using sim rate it peaks to 70 but rarely seen it go higher
My two cents…
The CPU and GPU are not the only two components that heat up. Both of those dump heat into your case (unless using liquid cooling, which you aren’t.)
In particular, you want to keep RAM and the motherboard’s VRM cool as well. Both can get quite warm, and benefit from better cooling.
The only way to know how to adjust your fan curves with regards to those components is to monitor their temps as well, and then decide how much fan noise you’re willing to live with to keep them cooler as well.
They actually sell liquid cooling for RAM. 
My 4090 runs around the 47 degree mark so that’s ok
Since rolling back my nvidia driver I’m not seeing any more spikes in temps and it’s only getting as high as 59 on sim rate and averages around 49/52 while not using sim rate witch in happier with.
What version did you roll back to?
I’m still on 566.14
I tend not to update very often, and so far it seems to be working fine.
Also, @TenPatrol thinks it’s the best of the recently released drivers, and that’s good enough for me.
.42 I think I went back too I’ll double check later. There’s a new one out now so might try that