I have the fans on my RTX 3080 set to be at 1% for every °C. 40C is 40%, 60C is 60%. Never seen it go above ~73C, but it is an Asus ROG Strix OC edition. Chassis fans are set much slower, AIO radiator fans are set to follow the liquid temp in the AIO, but are barely audible most of the time. Answer from Splyce123 on reddit.com
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Reddit
reddit.com › r/pcgamingtechsupport › what speed should my fans be at on my gaming pc?
r/pcgamingtechsupport on Reddit: What speed should my fans be at on my gaming PC?
November 2, 2021 -

Can anyone help me out and tell me the correct speed my fans should be on my PC. It's a gaming PC with a rtx 3080 and it usually sits between 70 to 80 degrees whilst gaming. My fan speed is at 80% only when it reaches 80 degrees (default setting). Is this correct or should it be higher / lower?

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Reddit
reddit.com › r/buildapc › a guide to safe temps and fan curves
r/buildapc on Reddit: A guide to Safe Temps and Fan Curves
March 28, 2025 -

I see so many people asking about what fan curve is good or what temperatures are acceptable. I sturggled with this for a while and just expirmented myself for awhile with little help from online sources,

The first thing you have to understand is there is NO one size fits all fix to what your temps should be or how your fan curves should be set up, but hereare a few big pointers. Please note that this is a GAMING-FOCUSED guide.

no one-size-fits-all
Temperatures for pc parts are always in Celsius. Temps of 20-45 can be considered good "idle temps" depending on the CPU model and the cooler. Temps up to 80 degrees are completely fine for all core temps, and generally, 70-75 is a good place being on the "safe side". Generally, CPUs don't thermal 95 degrees, meaning they won't slow down until they hit 95. GPUS, have about the same tolerances, but keep in mind, with the larger DIE size of gpus, they have a hotspot temp as well as the general.

In regard to fan curves, it depends on your setup, CPU, ambient temperature and cooling solution. Usually the reason to use a fan curve is to make your setup as quiet as possible while still maintaining safe and high performing temperatures. You also want to make sure that your fans arn't speeding up and slowing rapidly and often. That will lead to more annoyance than having the fans at a higher speed, as well as damage to the fans.

The best way to control your fan curves depends on how convenient of a program you'd like. You can always control fan speeds within the bios, howver this can prove anbnoying to edit curves on the fly. I rewcomend using the open-source program "Fan Control." This is increadibly light on system components and increadibly easy to use.

The ideal way, in my opinion, to set up a fan curve is to use the highest fan speed that is not noticeable while gaming. Please note that this comes from the perspective of someone with the following parts:

King 95pro, Liquid Freezer III 360mm, 9800x3d, 2070s(soon to be upgraded)

If your parts run hot already in games(75+ degrees), please ignore this guide and continue to use default curves or make the fan speed higher. The easiest way to do this is to set the fan speeds manually to set speeds(%) and listen and choose the highest that is not noticeable. Do this for every different brand/model of fan in your system. Non audible is generally 800 rpm or lower depending on the fan

I would set that unoticable speed to the speed from 0 degrees up until 75 degrees. Then increase the speed from there until the fans are absolutely be maxed out at 85-90 degrees. The goal is to keep the fan speeds in the “non-audible range” while gaming, unless massive temp spikes happen. The same can be done for the AIO pump if applicable. I would recommend leaving the GPU alone or setting up a different curve for it.

The next step should be to test the fan curves. Use MSI Afterburner to monitor CPU/GPU temps while gaming. And just enjoy some games while keeping an eye out for high temps and an ear out for rapid changes in fan speed.

Here's an example of my fan curve for my case fans and AIO fans

https://imgur.com/a/Hb5uknA

*note: my cpu hits 50-60 in most games(cyberpunk, indiana, etc). with this and 65-70 in Warzone(cpu demanding)

If your cpu is hitting the higher temps where the fans change speed(75+ according to this guide), the curves should be changed. This kind of rapid changing of fan curves should not be happening. If this is the case, increase the length of the increase to spread out the increase in fan speed (make the slope smaller and increase the length). Additionally confirm the GPU is under 80ish degrees.

Please note that the fan curves can be highly dependant on your setup, and should be taken with a grain of salt. Note that this is coming from someone with a relatively cool CPU and a good cooler. Lower tier coolers may require a very different fan curve, likely with higher speeds and a longer ramp-up.

I hope that this helps some newer builders. Please let me know if you have any quistions or concerns.

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Reddit
reddit.com › r/buildapc › optimal fan configuration for best airflow
r/buildapc on Reddit: Optimal fan configuration for best airflow
September 5, 2024 -

I got an H9 flow case, and with a Ryzen 7 5800x I want to get good cooling, so this is what I came up with, I just want some peer reviewing, thanks in advance!

My math says that exhaust fans will have to run at 1.5x the speed of the intakes to have equal pressure, so as long as I have 2 different fan controllers I'll be good, right?

Specs:
NZXT H9 flow

Ryzen 7 5800x
Be Quiet! Dark Rock Pro 5
Tempest Fan 120mm PWM x10
MSI B550 Gaming Pro.

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Reddit
reddit.com › r/msi_gaming › best fan curve for pc?
r/MSI_Gaming on Reddit: Best fan curve for pc?
June 25, 2024 -

Hello, I have a small question for you. Namely, does anyone perhaps know where to find some chart for setting the curve (fans speed) for gaming and video editing? Or maybe any of you have or could come up with some reasonable one so that the fans don't go at 80% when davinci resolve is on (I set them that way XD). Thank you very much in advance!

MB: MSI PRO Z790-A WIFI

CPU: i7-13700K

GPU: rtx 4070ti

MEMORY: G.SKILL 32GB (2x16GB) 6400MHz CL32 Trident Z5

CASE: Lian Li Lancool III

Note:

I have 4 fans and a 360mm AIO (3 fans)

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Reddit
reddit.com › r/pcmasterrace › what are the best fan settings?
r/pcmasterrace on Reddit: What are the best fan settings?
July 23, 2020 -

I have 4 fans 2 exhaust 1 intake 1 cpu air cooler

I use my pc for regular everyday stuff and for gaming

I’d like my pc to be as quiet as possible without compromising performance when gaming.

I have a Ryzen 5 2600x undervolted, and don’t play games that are too demanding (FPS mainly).

I have an ASUS board with options for standard, silent or turbo.

My question is, would silent mode compromise performance relative to standard? And if different fans should be set to different levels I.e. could I keep intake and exhaust at a lower level and just have cpu on a set mode etc?

Find elsewhere
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Reddit
reddit.com › r/buildapc › gpu, cpu, and case fan settings in fan control: better to set them at a series of flat limits or curve?
r/buildapc on Reddit: GPU, CPU, and Case Fan settings in Fan Control: Better to set them at a series of flat limits or curve?
May 21, 2023 -

All my life I've only ever built and put together middle of the road computers that are usually two generations behind on their CPU and GPU. As a result I never really needed to worry much about temperatures and never picked up much knowledge in regard to cooling. After a lot of saving and financially responsible decisions, I hit a point where I felt safe going all in on a machine just this once for the fun of it, and so I've just built a new computer with specs that actually mean I want to pay attention to temperatures. I'm affectionately referring to it as my mid-life crisis computer.

So my question is, in regard to the longevity of parts, what's my best bet for fan settings among the following using Fan Control v157? I don't really care about noise since I'm using a decent set of noise cancelling headphones, my entire concern is the long term health of the components.

  1. Just flat, 50 or 75% fan speed around the clock

  2. Flat plateaus (ex: 33% power between 0 and 45C, 66% power between 46 and 60C, 100% power at 75C and above)

  3. A straight line "curve from 0 to 100% with a single minimum and max temp

  4. An actual curve.

The computer: I've got a i9-13900k, 4090RTX FE, 64gb of RAM, and 6tb of NVME.2 4th gen. My cooling setup is a 360mm AIO positioned to exhaust out the top, three 140mm intake fans, four 120mm intake fans, and a single 140mm exhaust fan. The case is a Corsair Airflow 7000D.

Side note in case it matters: I've power limited the CPU to 200 watts so it maxes out at 77C under load (it was shooting up to 100c instantly under load tests at stock settings, hot tamale). The GPU is running stock settings since the FE seems pretty well optimized out the box and I'm not doing anything other than gaming with it.

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Reddit
reddit.com › r/lianli › what is the ideal fan configuration?
r/lianli on Reddit: What is the ideal fan configuration?
August 28, 2023 -

Currently my bottom and side are intake and Top AIO and back are exhaust. My ideal CPU package temp is around 45C and GPU is 35-40C and while gaming CPU is around 65C and GPU is 62C. My ambient room temperature is around 25/26*C.

After watching a lot of youtube videos, most people suggest side AIO as intake and the rest as my setup. So suppose i change my AIO to side as intake and my SL 120mm to top as exhaust how much improvement are we talking about ? Is it worth the hassle as i am pretty new to building PC and this was build with the help of knowledgeable person.

My CPU is Ryzen 7800x3d GPU - Gigabyte RTX 4090 gaming OC Motherboard- MSI B650 Tomahawk AIO - galalah trinity ii performance 2 - set of 3 SL 120 fans Back exhaust is Noctua NF-F12

Thanks for any reply or suggestions in advance. Any Advice is welcome.

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Reddit
reddit.com › r/buildapc › planning to build a gaming pc - question about the optimal case fan setup - any advice welcome.
r/buildapc on Reddit: Planning to build a gaming PC - question about the optimal case fan setup - any advice welcome.
August 11, 2022 -

Just a dream for now, hopefully becoming a reality in about 6 months. Put this list together after some research but I haven't been in the loop for a long time (the only PC I've ever built was in 2008).

Let me know if anything stands out as a bad or not cost effective choice. Ignore the peripherals etc.

PC part picker list

Which would be a better option for fan layout? Possibly neither of these?

https://imgur.com/a/i2Ak7bu

Many thanks.

Top answer
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I would downgrade your fans and upgrade your cooler. It's a mismatch to go for premium fans and a cheap 212. Trade the noctua case fans for a noctua NHD15s CPU cooler and a $30 5 pack of the arctic p12s and come out ahead in price while cooling way better It's best to not leave an intake on the side/front open. Fill them with 6x 120s. Otherwise you risk letting all that positive pressure escape out the hole right next to the fan. Also leave the shield in to redirect the side fan flow over the motherboard. The exhaust fans are less necessary and may even be a negative for the front-top one. It'll just be pulling out your fresh air from the intake next to it before you even get to the CPU cooler. One exhaust at the rear would be a good idea still.
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Some thoughts: The Hyper 212 isn’t a great cooler - it’s a budget cooler with ok performance; there are many better options like the Deepcool AK620 that will far outperform it for not a lot of money (also much better suited to the 5800X3D). A 3080 Ti provides minimal performance increase over a 3080 12GB - only a couple of percent; not worth £200 more unless you need that extra 2% of performance. For an air cooled build, I’d just go with the 4000D Airflow and some good fans so air comes in the front and leaves the rear in a linear and relatively direct path. The 5000D makes more sense for water cooling, where the radiator can occupy the side or top; otherwise the air coming in from the side and front just creates turbulence. Lastly, Nvidia will start releasing new GPU’s at the end of the year. If you’re not buying for 6 months, the component landscape will change a lot by then. Here’s an alternative build that will provide excellent airflow (using some of the best fans in the market) and nearly the same performance for £500 less. CPU Cooler: The Deepcool AK620 is a far better cooler and a better idea with the 5800X3D. You don’t need more thermal paste - the stuff that comes with coolers will be just fine. Motherboard: The MSI B550 Gaming Edge WiFi is much less expensive but with similar features and very good VRM’s. Also, no need for the sound card - the one built into the motherboard should be just fine. Memory: Upgraded to better spec RAM (same speed, lower latency) for not much more. Storage: Gen 4 NVME provide no benefit in games over Gen 3 NVME. Switched to a good spec much less expensive Gen 3 NVME. Video Card: As mentioned, a 3080 12GB will provide nearly the same performance for a lot less. Case: The 4000D Airflow is fine. I added four of the best 120mm fans out currently - the Phanteks T30-120. They’re thicker than other fans and outperform the Noctua NF-A12x25 noise normalized and in all aspects - airflow and static pressure. Plus if you just want to create a wind tunnel for shits and giggles while creating a ton of noise, they’ll spin up to 3000rpm. Three for the front as intake, one for the rear as exhaust. Power Supply: 1000w is not needed; 850w is plenty and significantly less expensive. PCPartPicker Part List Type | Item | Price | CPU | AMD Ryzen 7 5800X3D 3.4 GHz 8-Core Processor | £397.99 @ Technextday | CPU Cooler | Deepcool AK620 68.99 CFM CPU Cooler | £69.00 @ Computer Orbit | Motherboard | MSI MPG B550 GAMING EDGE WIFI ATX AM4 Motherboard | £154.99 @ Box Limited | Memory | Kingston FURY Renegade 32 GB (2 x 16 GB) DDR4-3600 CL16 Memory | £122.78 @ Amazon UK | Storage | Sabrent Rocket 1 TB M.2-2280 NVME Solid State Drive | £82.39 @ Amazon UK | Video Card | MSI GeForce RTX 3080 12GB LHR 12 GB GAMING Z TRIO Video Card | £803.47 @ Ebuyer | Case | Corsair 4000D Airflow ATX Mid Tower Case | £74.98 @ Amazon UK | Power Supply | Corsair RMx (2021) 850 W 80+ Gold Certified Fully Modular ATX Power Supply | £109.49 @ Box Limited | Operating System | Microsoft Windows 10 Home OEM 64-bit | £94.99 @ AWD-IT | Case Fan | Phanteks PH-F120T30 67 CFM 120 mm Fans 3-Pack | £78.85 @ Gaming Co | Case Fan | Phanteks PH-F120T30 67 CFM 120 mm Fan | £30.00 @ Computer Orbit | Monitor | Samsung LC27JG50QQNZA 27.0" 2560x1440 144 Hz Curved Monitor | £279.99 @ Amazon UK | Keyboard | SteelSeries Apex 3 RGB Wired Gaming Keyboard | £49.99 @ Amazon UK | Mouse | Razer DeathAdder V2 Wired Optical Mouse | £34.98 @ Currys PC World Business | Headphones | Anker Soundcore Life Q20+ Headset | £49.99 @ Amazon UK | Speakers | Logitech Z623 200 W 2.1 Channel Speakers | £126.99 @ Currys PC World Business | Custom | iFixit Moray Driver Kit - 32 Precision Bits for Smartphones, Game Consoles & Small Electronics Repair | £16.86 | Custom | ALLY-MAGIC 1 Pieces Graphics Card GPU Brace Support Black Video Card Holder Bracket Supports Nvidia RTX 3000 AMD RX5000/6000 Series Y2XKZJ (A) | £5.99 @ Amazon UK | Prices include shipping, taxes, rebates, and discounts | Total | £2583.72 | Generated by | PCPartPicker | 2022-08-11 23:43 BST+0100
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Reddit
reddit.com › r/ibuypower › help with fan settings/speed (first gaming pc)
r/iBUYPOWER on Reddit: Help with fan settings/speed (first gaming pc)
January 31, 2020 -

This is the PC I bought: https://www.bestbuy.com/site/ibuypower-gaming-desktop-intel-core-i7-9700f-16gb-memory-nvidia-geforce-rtx-2070-super-1tb-hdd-480gb-solid-state-drive-black/6362981.p?skuId=6362981

I’ve never owned a gaming pc before and want to utilize my fans to their ability to cool my system. Couple questions though:

  1. What is the best and/or proper program to use for controlling the fan speed of my 5 fans?

  2. What is the desired temp to be in while playing a heavy graphics game? Like the game “Control” on Ultra settings.

  3. Once I get help with the proper program to use, it safe to always have the fans at a higher speeds if I don’t mind the noise? (Instead of an “profile” mode)

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Reddit
reddit.com › r/fancontrol › rate my fan control setup!
r/FanControl on Reddit: Rate my Fan Control setup!
March 29, 2024 -

  • CPU cooler : Noctua NH-D15

  • 3 x Arctic PWM PST 140mm (daisy-chained) as Front intake

  • 1 x Arctic PWM PST 140mm as Back exhaust

  • 1 x Arctic PWM PST 140mm as Top (back) exhaust

  • Case : NZXT H5 Flow

  • CPU : Ryzen 7800x3D

This works like a charm. As you can see, idling in Windows the fans barely spin and the CPU sits at a cool 40°C. No noise!

I set the curves so that the case fans ramp up to max 60%, and the CPU fans to 100%. It does get a little bit more noisy then but still very bearable. CPU temp doesn't go beyond 80°C even when running things like Cinebench, OCCT, etc.

I love this build and I love Fan Control!

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Reddit
reddit.com › r/pcmasterrace › help with bios fan settings. what to set?
r/pcmasterrace on Reddit: Help with Bios fan settings. What to set?
May 27, 2025 -

I'm talking about case fans. I have 3 of them. 2 front intake, 1 top exhaust. They are all the same model PWM fan.

In pic # 1, that is the default setting. Smart Fan mode is not set. So what it appears to me is that when Smart Fan mode is unset, you can only set static values for the fans. So doesn't this mean the fan will spin at the same speed regardless of temperature changes in my PC. Is that correct?

In pic # 2, I just show that you can change the voltage (and therefore rpm) of the fan up to 12 V.

In pic # 3, I show what Smart Fan mode looks like. You can see that now we have a curve to play with. I am able to manipulate each of the 4 points on the curve.

You can see at the left there are settings. They are:

  • PWM or DC

  • Temperature Source. Options are: CPU, System, MOS, PCH, CPU socket

  • step up time. From 0.1 - 0.7s

  • step down time. From 0.1 - 1.0s

My Questions

  1. Should I have my fans set to Smart Fan mode? I'm wondering why this was not the default? And should all be set to that mode, or just some?

  2. If I do use SMart Fan mode, should I change this curve at all? Is it just about tinkering with it until you are happy with how it sounds and performs?

  3. I'm kinda confused about the difference between DC and PWM modes. I used to think that PWM fans can change speed while DC cannot. But know I know that DC can change speed, too. So what is the point of PWM, and should I have it selected?

  4. What temp source should I use for each fan? I was told most gamers choose GPU. But I don't have that as an option. "System" is the only one I don't where its measuring, do you know?

  5. What to set for set up and step down time?

Thanks for your help!

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Reddit
reddit.com › r/pcmasterrace › how do you manage your fans? bios? mobo utility? 3rd party app?
r/pcmasterrace on Reddit: How do you manage your fans? Bios? Mobo Utility? 3rd Party App?
January 26, 2024 - You just have to love PCs. It's not about the hardware in your rig, but the software in your heart! Join us in celebrating and promoting tech, knowledge, and the best gaming, study, and work platform there exists. The Personal Computer. ... Archived post. New comments cannot be posted and votes cannot be cast. Share ... Fan curve in bios for CPU and case fans. Fan curve in Afterburner for GPU fans. ... I use Fan Control to create the curves, then I set those curves in BIOS.
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Tom's Hardware Forum
forums.tomshardware.com › home › cooling
[SOLVED] - Anyone recommend me the best setting for the fans? | Tom's Hardware Forum
April 12, 2022 - So according to that when the PCH ... 100%. Temp/pwm 3 + 4 will be additional set points, so if usable you could set 1 as 20% at 20°, 2 as 50% at 30°, 3 as 60% at 40° and 4 as 100% at 100° etc....
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Reddit
reddit.com › r/buildapc › best fan configuration?
r/buildapc on Reddit: Best fan configuration?
October 28, 2023 - This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community as they piece together their desktop. ... Below i have attached an image of my fan setup for my PC case.