My advice is this; Keep the fan curve at the lowest speed up to 50 degrees. 0% 25% at 50 degrees 45% at 60 degrees 65% at 70 degrees 100% at 80 degrees. If this situation does not satisfy you; Increase each degree by 10. For example, 50 is not 0%, but 60 is 0%. 80 degrees is 100% good for the fan, do not touch it. Answer from ilkanayar on reddit.com
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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/fancontrol › how do i create a good fancurve
r/FanControl on Reddit: How do i create a good fancurve
March 13, 2025 -

So i want to create a fancurve for my cpu. My cpu cooler and case fans are too loud and it annoys me. I have a ryzen 7 5700x3d and a Thermalright Phantom Spirit 120 SE ARGB cooler.

First off, i don''t know what speeds i should put at what temperatures. I want my cpu to be cool but not that the fans are so hot. Also, what do case fans use as the temperature source? Should i just use my cpu temps as a reference? Lastly, what do these two features in the picture do and what is the best settings for therm? Thank you in advance!

Top answer
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My 9800x3d doesn't really ever drop below 40C, so I set the minimum fan speed at 35% for 40C. 35% on my fan is around 550rpm, which is mostly silent. Here's what my fan curve looks like ( https://imgur.com/a/lcLlt4t ). I like to keep the fan spinning slowly as long as possible and ramp up as needed if it's getting hot, which I consider to be above 60C. 40C = 35% 50C = 40% 60C = 50% 70C = 75% 80C = 100% Start with something similar to what I have above, and adjust it from there to your preferences. Keep in mind my CPU fan spins at 1500 rpm when at 100%. If your fan is faster or slower, you may need to adjust.
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I'll point you to a previous post here: https://www.reddit.com/r/FanControl/comments/1iqjjxr/comment/mdsa9ww/?context=3 How you configure your fans is going to entirely depend on your hardware, your coolers and fans, your case, your ambient temperature, and what noise:performance you are comfortable with. What speeds to use at what temperatures really relies on all of the above info, but there's a few things to keep in mind that might get you started: Set the 100% speed of your fan curve to the highest temperature that you are comfortable with your CPU hitting. Set the 0% speed of your fan curve to a few degrees below whatever your normal idle is. Understand that, in most cases, you'll want to induce positive air pressure in your case to prevent dust buildup. After that, it's just a matter of testing under typical loads that you'll experience. While testing and watching your temperatures, if you feel like your CPU is running cool enough and you'd instead prefer your fans to be quieter, adjust the curves down for that given temperature. If you feel your temperatures are too high for a given noise level, adjust the curves up. Rinse and repeat. And since nobody answered your question about the two settings you circled... they have to deal with hysteresis, which is the delay in which an output is realized from a given input. When it comes to fans, hysteresis is all about avoiding sudden changes in fan speed (which cause more noticeable and unpleasant fan noise) due to transient temperature spikes which are not uncommon. The Hysteresis setting determines the degree (temp) change required before your fan curve will take effect and change your fan speed. The Response Time setting determines the time over which the Hysteresis degree change must exceed before your fan curve will take effect and change your fan speed. For example, assuming you're monitoring your CPU temperature, with the default of 2H and 2RT, your fan curve will not change at all if your CPU temperature goes from 40-41. Nor will it change it your CPU temperature goes from 40-45 for 1 second, then goes back down to 40 afterwards. If you change your settings to 5H and 1RT, your fan curve will not change at all if your CPU temperature goes from 40-44. However, if your CPU temperature goes from 40-45 for 1 second, it will change (to whatever your curve is set to). If your change your settings to 1H and 10RT, your fan curve will not change until your CPU temperature exceeds 1 degree change for over 10 seconds. Most of my curves are set to the default 2H and 2RT, but my rear and bottom exhaust fans are set to 2H and 5RT in order to delay any fan changes as a result of transient temperature swings.
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Reddit
reddit.com › r/rogally › can anyone recommend a good custom fan curve?
r/ROGAlly on Reddit: Can anyone recommend a good custom fan curve?
June 27, 2023 - So by letting the fans max once it goes beyond 80, it keeps things well inside the acceptable range. For me when it hits 90 (which it very easily goes beyond 90 on stock settings for turbo mode) it becomes a bit concerning. So like I say, my curve is very shallow with a pretty dramatic ramp up once temps go up. I find this works best ...
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Reddit
reddit.com › r/noctua › could you please tell me if my fan curve settings are good?
r/Noctua on Reddit: Could you please tell me if my fan curve settings are good?
July 27, 2024 -

Hi everyone, I have a 360 AIO, 1 exhaust, and 3 intake all using NF-A12x25 PWMs. This is the fan curve I follow:

0dB fan curve from Arctics official website

And this is my fan control set up:

All fans (except GPU) are following the 0dB fan curve.

I wanted to know if it is ok for my exhaust and intake to operate, in relation to my CPU temp (just like my AIO). Is this ok, or should I change the source?

Top answer
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Yeah like the other guy said inaudible to a certain percentage. My personal on the Noctua-a12x25 is above 42% they start to get audible so I set them to 40%. The pump noise of my ex-aio definitely was louder. So I’d start at 40 (or lower if you are more sensible but buying premium inaudible fans to have them off is odd choice) and then ramp it up from there. My curve is also more like an inverse Bell (x2) from 80C or something not almost linear like yours.
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One thing I learned about fan curves is that they are subjective. Noise levels, acceptable temps, case flow... you'll get a lot of responses... For me, personally, never had my 280 AIO fans running above 1000rpm (1600rpm max speed fans), was more than enough to keep my 5800x running at about 75° on load. Gaming, in between 55° to 65° at lower rpm. On idle, never had them at 0rpm, but around 500rpm, very quiet. So my case would be 500rpm until CPU at 65°, than up to 1000rpm until 80°. Full speed afterwards. For case fans, mine all 140mm ones (1000rpm max speed), front fans running fixed, as fast as quietly possible, exhaust would get most of the GPU's hot air, maybe close to 800rpm, lower if not gaming. Those curves are a good starting point. My advice would be for you to use Cinebench or OCCT to try out the AIO fan speeds and keep the CPU at acceptable temps for you: full load, establishing max speed related to noise/temps. Also, in my AIO system, I never found the GPU hot air to be affecting my CPU temps that much, but it's a 260W GPU. Also, I prefer to use rpm than percentages in fan speeds, unless you have the same fans all over. Good luck! Edit: forgot something.
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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.

Find elsewhere
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Reddit
reddit.com › r/buildapc › best fan curves to use?
r/buildapc on Reddit: Best fan curves to use?
April 25, 2023 -

Hi all,

I just completed building/testing my PC, but I am unsure about what the best fan curves are to use. I currently am using the standard curves given from the BIOS.

Case: MSI Vampiric 010
CPU: 15-13600k
GPU: MSI Gaming Radeon RX 6700 XT 12 GB
MoBo: MSI Pro Z690-A WiFi DDR5
RAM: Corsair VENGEANCE DDR5 32GB (2x16GB) 5600MHz C36
PSU: Corsair CX750F RGB
CPU Fan: Thermalright Peerless Assassin 120 SE
Case fans: 6x Thermalright TL-C12C-S

I have currently daisy chained 3 case fans (twice, so 2x3) PWM.My motherboard however does have 6 seperate fan connectors, so plugging each fan in on their own would be possible as well (if that would be any better instead of daisy chaining them).

Could anyone perhaps help me out in this case?

Thank you in advance.

Edit: Currently playing CS:GO and below are my current temps with the standard BIOS fan curves:

CPU Core temperature: around 44 degrees Celcius
CPU Socket temperature: around 33 degrees
System temp: 33

Fan speeds:
CPU Fan: 450 RPM
Sys fans: 1100 RPM
GPU Fan: 1400 RPM

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Reddit
reddit.com › r/sffpc › is this a good fan speed curve?
r/sffpc on Reddit: Is this a good fan speed curve?
July 9, 2024 - The trick is to find out the levels for various workloads, like idle, office, gaming and stress test. Then define your fan curve accordingly.
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Reddit
reddit.com › r/amd › fan curve recommendations
r/Amd on Reddit: Fan Curve Recommendations
November 29, 2022 -

I have a 5700XT that sits around 40c while idle and I'm trying to find out what the most optimal fan curve is while keeping it silent. Anything above 50% GPU fan utilization sounds like a jet, so that's what max fan speed would be. I recently upgraded to 1440p, which is amazing, but now I keep Horizon Zero Dawn locked at 60FPS, High settings, and still gets up to 69c max. I know that's still good, but I would still prefer it lower considering it is only running at 60FPS. I could also be spoiled from running Horizon at 120FPS, high settings at 1080p, so this could just be something that's my new normal. Any insight on a good fan curve is appreciated.

I also keep it undervolted to 1800mghz at 1050mV. At stock, it was going up to 78c. All changes are using the Radeon Software btw.

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Reddit
reddit.com › r/fancontrol › need a good fan curve
r/FanControl on Reddit: Need a good fan curve
January 19, 2025 -

Just got fan control, but I do not know how to make a good fan curve. I’m looking for something that will run quiet while doing homework, but will kick in once I’m gaming. I have 1 exhaust fan in the back, 1 intake on the top and 2 intakes in the front.

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Reddit
reddit.com › r/pcmasterrace › recommended fan curves for pc?
r/pcmasterrace on Reddit: Recommended fan curves for pc?
May 9, 2023 -

This is my current config. The mix sensor is based on the highest temp between cpu and gpu. I have 3 front intake fans, two back exaust fans, and deepcool ak620 as the cpu cooler. Is this a good fan curve setup?
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Reddit
reddit.com › r/buildapc › tip for new builders: case and cpu fan curves
r/buildapc on Reddit: Tip for new builders: Case and CPU Fan Curves
November 20, 2019 -

When you set your fan speeds in the BIOS after building your PC for the first time - if you're working with a modern motherboard/bios - you'll likely have access to a tool that resembles a graph with dots on it, where the Y-axis is fan speed in % of max speed and the X-axis is temperature values in degrees celcius. This is, if you are using PWM fans (fans that change speed based on temperature information sent from the motherboard), the most straightforward way to set up your fan profiles. A profile determined by dots you place on the graph will tell the fan under what conditions (i.e. at what temperatures) to spin at a certain percent of max speed.

Here's my observation - fan speed changes are more distracting than (relatively) loud fans. And my suggestion: Don't make a straight or consistently ascending line on the graph, for example 40 degrees = 30% speed, 50 degrees = 40% speed, 60 degrees = 70% speed, and 70 degrees = 100% speed. Don't do this because the result will be that your fans constantly speed up and slow down dynamically as the temperature changes under normal usage at safe temperatures. This is, for me, much more distracting than having the fans run consistently at one speed a bit faster/louder. Here's what I've done instead:

In my bios fan control settings there are four dots on the graph and a graph for each fan. I've set all of the fan graphs up as follows: (point 1) 0 degrees celcius = 50% speed; (point 2) 60 degrees celcius = 50% speed. These two values ensure that the fan runs at 50% the majority of the time - namely when the CPU temperature is anywhere between 0 and 60 degrees celcius. This is both quiet enough for me and keeps the temperatures around 35 degrees at idle. The fan speed doesn't change at all up until the CPU reaches 60 degrees, which is the max temperature I've observed any CPU core to reach under normal non-gaming or rendering workloads with the fans at 50%. So to summarise: now, most of the time the fans are running at 50% speed and the CPU temps are below 60 degrees; Next, the last two dots are set with CPU intensive scenarios in mind. The third point is 65 degrees = 75% speed (could be 80% speed if you're worried about thermal runaway, or 70% speed if you want it to be a bit quieter at this temperature, there's room for adjustment here), and the fourth 70 degrees = 100% speed. The reason for this 10 degree span is twofold: For one, this is the temperature range which is easily handled by my cooling solution with fans at close to full speed when the CPU is at 100% utilisation. This is also (70c) the max temperature I would prefer my CPU to run at for longer duration, although it is well below throttling temp and even 10 degrees below the widely assumed safe operating temp for my chip. Just an aside, putting both latter values (graph dots) at 70 degrees = 100% speed should have had the same effect, as the fan speed would increase linearly by 100% over 10 degrees in either scenario. I just like to use all the dots.

These values are an example. EDIT: as other users have pointed out, the fact that these values work for me doesn't mean they'll be perfect for your cooling setup. They could be a bit too relaxed if your chip is quite hot in general or too aggressive from a noise standpoint if the CPU tends to briefly fluctuate above 60 degrees under medium workloads. END EDIT. The key to quiet fans is to prevent them from switching speed at lower, "safe" temps, and instead to have them aggressively ramp up when the temperature goes over whatever value you're comfortable having the CPU run at over a longer period of time. Note, this isn't my approach with my graphics card, there I'm a bit more focused on avoiding thermal runaway and tend to have the card fans ramp up to 100% long before any thermal throttling would occur, as well as have them run faster at lower temps to prevent the near-throttle temps from ever occurring. In general, a graphics card will reduce its processing speed (core and/or memory clocks) before it hits a safe thermal limit - for my rx 480 the performance throttling temperature is 83 degrees, but the "safe" max temp is over 90. CPU's won't thermal throttle their processing capability (clock speed) based on temperature until they reach unsafe temperatures, so the motivation for fan speed curves is different for these two different scenarios.

EDIT: update 11.02.2020, Ryzen 2 CPUs WILL throttle their boost clocks long before reaching unsafe temp levels. For example, my CPU is at 65° under an all core 100% load, my boost clock on all cores is about 3990-4000mhz; my CPU is at 70° in the same scenario, the CPU boosts to 3950mhz. This may also be the case with intel CPU "turbo boost" level clocks. So it's up to you to ascertain if this is the case and then choose a performance and noise level you're comfortable with if you want your CPU to consistently boost as high as it can with your respective thermal solution (CPU cooler).

What a CPU still won't do is drop below stock clock speeds until it hits unsafe temps (thermal throttling), and in this way it is similar to gfx cards whose algorithms consider core/memory load as well as temperature to decide when to boost above stock ("boost clock", "game clock" or whatever your GPU AIB chooses to call the above stock overclock).

Just thought I should update this because I wrote it long before experimenting with my r5 3600 and the case cooling. Spending an inordinate amount of money on good airflow+static pressure fans nets me about a 50mhz all core boost clock with an aggressive fan curve by keeping CPU temps between 60-65 at max utilisation. Wasn't worth it.

Hope this helps some people out there, happy building :)

Late edit: Link to second post with additional information on fan curves.

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Reddit
reddit.com › r/buildapc › good fan curve?
r/buildapc on Reddit: Good fan curve?
February 15, 2023 -

I have the gigabyte smart fan 5 open and not really sure how it works. I have 1 PWM fan in the back for exhaust and 2 PWM fans in the front for intake. The cpu fan is lined up with the exhaust. My max fan speed is about 2750 rpm, and temps idle at 26°C when at 40%. How do I configure it manually?

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Reddit
reddit.com › r/rogally › my best fan curves and power profiles (manual turbo mode) and (manual operation battery mode)
r/ROGAlly on Reddit: My Best Fan Curves and Power profiles (Manual Turbo mode) and (Manual Operation Battery mode)
July 2, 2023 -

(My UPDATED FAN CURVES for Bios 322/323 - July 23 2023) The fans are now very quiet under normal desktop use and they only spin up higher when gaming or under heavier CPU use. ASUS made the fan curves a little too high and noisy after the new bios 322 / armory crate update

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After the Bios 322 / Armory crate update, Asus locked some of the fan curves because microSD cards were failing due to high temps. From 60c and past that the fan curves are now locked by ASUS at 74%. Only the people that had the fan curves adjusted before updating to bios 322 can have it lower. You can still adjust the power profiles and some of my fan curves on newer bios but just not anything past 60c since the fan% is locked by Asus then. The slider will automatically drag itself back up if you try to go under the ASUS locked limit. A locked fan profile is just something we have to live with now and I don't expect that Asus will change it back anytime soon.

If you want to use All of my fan curves then you will need to roll back to a older bios (319 / 317) and setup my fan curves and save it and then update again to the newest bios and then my fan curves will carry over to any newer bios.

To do the rollback to a older bios, you will always need a usb-c hub with (PD) power delivery and a usb-stick or external hdd connected to it with the older bios downloaded from the Asus website. https://rog.asus.com/gaming-handhelds/rog-ally/rog-ally-2023/helpdesk_download/

Always when installing a older bios, the system needs power connected and a usb stick. Because there is only 1 usb-c port on the Ally, that means you will need a usb-c hub with power delivery for the rollback to a older bios to work. I recommend getting a usb-c hub with 100W (PD).

Also I Highly recommend to NEVER use the Ally's SD card slot anymore because it's like an airfryer that will eventually destroy and cook your SD card. Buy yourself a usb-c hub 100W (PD) with a SD card reader instead.

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Anyway, these are now my best fan curves and power profile so far. They keep my temps low and fps high and have okay noise levels from the fans.

When gaming, anything in the 60-79c range is good temp and in the 80-85c range it is still okay but getting little High now. You should always try to get the temp target within the 60-79c range and it will be great. Anything below the 60-79c range is of course fantastic but not needed, you can lower the fan speed if you want instead then to reduce noise.

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(UPDATED - July 23 2023) (30W)

(Manual Turbo mode plugged in) Have power plugged in before setting up this mode.

Set "Manual Turbo Mode" in Armory crate

SPL=30/30W SPPT=34/43W FPPT=35/53W

Set a custom fan curve: 2%fan=35c / 8%fan=40c / 30%fan=55c / 75%fan=60c / 85%fan=70c / 95%fan=80c / 100%fan=90c / 100%fan=100c. Do this for both fans.

Save the settings by pressing the check mark ☑️ (Press YES on the Asus warning)

(UPDATED - July 23 2023) (17W)

(Manual Operation Battery mode unplugged) Have power unplugged before setting up this mode.

Set "Manual Operation Mode" in Armory crate.

SPL=17/25W SPPT=18/30W FPPT=18/35W

Set a custom fan curve: 2%fan=35c / 8%fan=45c / 20%fan=55c / 25%fan=60c / 40%fan=70c / 70%fan=80c / 100%fan=90c / 100%fan=100c. Do this for both fans.

Save the settings by pressing the check mark ☑️ (Press YES on the Asus warning)

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I highly recommend disabling CPU boost, It will save a lot of battery and also lower the temps with minimal fps drop, if any. (The AMD Z1 Extreme processor is so powerful that it does not need that extra boost in most games).

This video will guide how to disable CPU Turbo boost https://www.youtube.com/watch?v=iWBVtXPfTB0

Don't worry, turning off CPU Turbo boost is easy and totally safe.

In the video he says set the "Attributes" to (0) but many users have commented that setting it to (2) works best. I set mine to (2) and it works great.

What does setting the "Attributes" to (2) do?: It unhides the hidden CPU power option so that we can disable CPU turbo boost.

If your playing emulated games like "Zelda: Tears of the Kingdom" and others, then having CPU boost (enabled) will give you better fps in games that uses a lot of the CPU, like emulators. You can just enable CPU boost when you need it and then turn it off again when you don't need it. I recommend having it off unless you really need it for emulators and such. Having it off will save you battery and also lower the temps.

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I also recommend turning OFF "Core Isolation" as it will boost your FPS and lower CPU usage and it will also save a little battery.

Here is a video Guide how to disable it and it shows gameplay FPS with it ON and OFF:

https://www.youtube.com/watch?v=L7qEHqHi-Gs&ab_channel=MostlyPositiveReviews

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I'm no expert, I'm just your average build it yourself PC guy. Built like 50 or so pc's over the years.

Anyway, from what I've read the SPL is the important one that gives you the average Watt. SPPT boost the Watt for 2mins when needed and FPPT boost it for 10sec when needed.

I am still testing these numbers out but for now they seem very good and keeps my fps high and the temps low when gaming plugged in and on battery mode unplugged.

When it come to battery mode I feel that 17W on the ROG Ally is the sweet spot for gaming on battery and we get good FPS with low battery usage. There are diminishing returns going over certain wattages and this video shows what I mean: https://www.youtube.com/watch?v=3SwkrM-FpG8&ab_channel=Filterless

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Hope this helps. Happy Gaming 😊👍