The Science Behind Case Fans: A Deep Dive into Performance and Temperatures

In this article, we'll explore the effects of case fans on computer performance and temperatures, specifically focusing on mid-towers with restricted front panels. We'll examine how adding an exhaust fan can impact graphics card temperatures, as well as CPU performance.

Our testing began with a review of the H 500, a popular mid-tower case that features a unique design with limited airflow options. As expected, we noticed that the graphics card experienced significant temperature increases in this setup. However, when we ran a negative test where the fan was set to provide no airflow from the front panel, the graphics card temperatures dropped significantly. This surprised us, as we wouldn't have thought that not providing fresh air to the card would reduce its temperatures.

To further investigate this phenomenon, we conducted additional testing with the H 500 and another mid-tower case. In both cases, we found that adding an exhaust fan had a significant impact on graphics card temperatures. When the fan was set to its maximum speed of 1500 RPM, we saw a decrease in temperatures of up to three degrees Celsius. This suggests that even without significant airflow from the front panel, an exhaust fan can still have a positive effect on graphics card performance.

One interesting observation from our testing was the impact of the fan's curve on CPU temperatures. When the exhaust fan was set to its maximum speed, we saw no change in CPU temperatures, regardless of whether the fan was running at 50% or 100% of its max RPM. This suggests that while adding an exhaust fan can have a positive effect on graphics card temperatures, it may not necessarily have a similar impact on CPU performance.

In fact, our testing revealed that to see significant gains in CPU temperatures, the fan would need to be set at an unrealistic curve. We wouldn't recommend setting fans to 100% RPM for extended periods of time, as this can lead to noise and decreased system performance. Instead, we suggest using a moderate fan curve, such as around 50%, to achieve optimal cooling performance.

While our testing suggests that adding an exhaust fan can have a positive impact on graphics card temperatures, it's essential to note that every case is unique, and results may vary. The H 500 case, in particular, features a design with limited airflow options, which may not be representative of all mid-tower cases.

In conclusion, our testing has shown that adding an exhaust fan can have a significant impact on graphics card temperatures, even in cases with restricted front panel airflow. However, the effectiveness of this approach depends on various factors, including the type of case, fan curve, and system configuration. By understanding the science behind case fans and their effects on performance and temperatures, you can make informed decisions about which fans to use and how to optimize your system for maximum cooling efficiency.

The Science Behind Exhaust Fans: A Closer Look

As we delved deeper into our testing, we began to explore the specifics of exhaust fan design and its impact on system performance. One key observation was that the fan's RPM curve plays a significant role in determining its effectiveness. In our testing, we found that setting the exhaust fan to 1400 RPM resulted in the most significant cooling benefits for both the graphics card and CPU.

It's essential to note that not all exhaust fans are created equal. The design and construction of the fan can significantly impact its performance, with more efficient models offering improved airflow and reduced noise levels. When selecting an exhaust fan, look for models with high-quality bearings and a durable motor design, as these will provide better cooling performance over time.

In addition to the fan's RPM curve, another critical factor is its placement within the case. Strategically positioning the exhaust fan can have a significant impact on airflow patterns within the system. For example, placing the fan near the CPU or GPU can help improve heat dissipation and reduce temperatures.

Our testing also highlighted the importance of balancing airflow in the case. When the front panel fans are not providing sufficient airflow, adding an exhaust fan can help mitigate this issue by removing hot air from the system. However, if the front panel fans are already producing a significant amount of airflow, adding an exhaust fan may be less effective.

The Benefits and Drawbacks of Exhaust Fans

While exhaust fans offer numerous benefits for cooling performance, there are also some drawbacks to consider. One key concern is noise levels. When set to high RPM settings, exhaust fans can become loud and annoying, particularly in quiet environments. However, most modern exhaust fans are designed to be relatively quiet, making them an acceptable addition to systems.

Another potential drawback of exhaust fans is the added cost. While not always significant, the cost of a good-quality exhaust fan can add up quickly, especially if you're planning to use it for extended periods. However, many case manufacturers include exhaust fans in their designs, which helps mitigate this issue.

In terms of benefits, exhaust fans offer numerous advantages for cooling performance. By removing hot air from the system, exhaust fans can help reduce temperatures and improve overall system stability. Additionally, exhaust fans can be used to improve airflow patterns within the case, reducing the risk of dust buildup and promoting cleaner airflow.

Conclusion

In conclusion, our testing has shown that adding an exhaust fan can have a significant impact on cooling performance, particularly for graphics cards. However, it's essential to consider various factors, including the type of case, fan curve, and system configuration. By understanding the science behind exhaust fans and their effects on performance and temperatures, you can make informed decisions about which fans to use and how to optimize your system for maximum cooling efficiency.

The Future of Case Fans: Trends and Innovations

As we move forward in the world of computer hardware, it's likely that case fans will continue to evolve and improve. One trend we're seeing is the increased focus on silent operation and reduced noise levels. This is driven by growing concerns about noise pollution and the importance of maintaining a peaceful working environment.

To address these concerns, many manufacturers are developing new exhaust fan designs that prioritize quiet operation over airflow performance. These fans often feature advanced materials, such as sound-dampening coatings or specialized bearing designs, which help reduce noise levels while maintaining cooling efficiency.

Another trend we're seeing is the integration of advanced fan control systems. Many modern cases now include sophisticated fan control systems that allow users to customize fan speeds and profiles based on specific system demands. This enables more precise temperature control and improved overall system performance.

Finally, there's a growing focus on sustainability and energy efficiency in the world of case fans. As consumers become increasingly aware of the environmental impact of their hardware choices, manufacturers are responding by developing more eco-friendly designs that minimize waste and reduce energy consumption.

In conclusion, the future of case fans looks bright, with innovations focused on reducing noise levels, improving cooling performance, and promoting sustainability. By staying ahead of these trends and choosing high-quality exhaust fans that suit your needs, you can enjoy improved system performance and reduced temperatures for years to come.

"WEBVTTKind: captionsLanguage: enthis video was not planned I am kind of doing this impromptu because I received more than a few comments about the lack of an exhaust fan in the P 400 a and how my conclusions were somehow skewed because I didn't include another fan I just used the fans that came with the case that were installed out of the box you guys know why I do that I test things out of the box because that's how most people tend to leave things I don't expect all of you to have extra fans laying around that you can pull from build to build although that would be ideal I just don't like to leave those people out so I stressed in that video this was gonna be more of a worst-case scenario because first off we're using the white version which is gonna reduce the porosity of the front panel but also that we were using just the three fans because three fans is typically enough for most posts cases out there it's a at least most mid towers three fans should be enough I left them in the stock config because I figured fantex knew what they were doing if you have a porous front panel they're gonna put as many fans up there as you can because you can get more air into the case and whether or not it's a negative or a positive pressure differential between the case and atmosphere I think that that's more or less irrelevant a lot of people who do this like case testing for living and people that work in Nvidia AMD and elsewhere will tell you that the pros and cons of positive and negative pressure really kind of they kind of balance each other out whether you're doing one or the other as long as you have some movement of air in and out of the case that's what you should be going for and you guys were hinting at a few of you were hinting at how including an exhaust fan would speed up that air removal process get rid of some of that heat and lower CPU temps possibly you can grab its contents I'm not sure how a single exhaust fan at the rear next to the CPU cooler is gonna affect graphics card temp so we'll find out in this video the whole point is to learn something so we're gonna see if one exhaust fan can make a heck of a difference because that's what some of you seem to think so we'll see if you're rockin the Windows 10 operating system and haven't activated your copy click the link below and purchase an OEM license from s CD key then click here here here and then here paste your activation key and you'll have a fully activated OS in seconds and make sure to use my offer code as studio for an 18 percent discount on your order so we will need to rebuild our entire system in this case that's okay part of the job not a big deal some of you were complaining about the fact that I was using the stock fans that's not gonna change I'm not gonna swap these fans for Noctua fans it's not gonna happen you can go to other channels for that stuff I'm gonna test what comes in the box and I might add to that just to play around with it like we're gonna do in this video but I'm not gonna swap these out entirely some of you were saying that these fans weren't ideal for pulling air through if that's the case that's fantast fault and I'm still gonna conclude the way that I concluded in the original review we did also test the viability of the mesh by completely masking it off and allowing air to be pulled in from the top and bottom as was the case in traditional p400 and concluded that the mesh itself was not very effective at allowing air to pass through it so I'm not sold on the idea that replacing these fans will magically make the mesh any more porous like that's why I ran the tests that I did in that video so these fans are gonna stay in here there's my justification for that the only variable in this video is going to be that single exhaust fan we're just gonna see how big a difference that one fan makes for temperatures on both our CPU and graphics card yeah all right let's build and then I will show in real-time the test will try to replicate our results from the review video first and then we'll throw that one fan in there and see how things change all right I'm gonna try a really cool jump at you ready for this three two one alright that was probably really cheesy but I was like 20 minutes of work that's pretty straightforward alright now coming up on 30 minutes for this test I kept the monitor pretty far away from the case because I don't want the heat from the monitor to affect temperatures here again we want to keep this isolated I've made sure Pepsi is not messing with anything Pepsi Pepsi not messing with anything right alright so let's stop this and we are going to appear to statistics and look at that core 585 degrees that's exactly what we found last time and GPU diodes 77 degrees let's see I have my phone here to double-check I don't remember exactly what graphics card temps were as long as we're within 1 degree Celsius of yesterday's temperatures we'll be okay p400 a panel on 85-77 ok cool so exactly what we got yesterday on this test so if you were doubting my results from yesterday you could see it in real-time here by the way all of our fans are running at a 50% fan curve the reason why I use 50% and and I don't set it to an hour p.m. specifically is because every case fan is different so every fan is Pepsi what are you doing hey what are you what are you doing what are you doing anyway every case fan is designed to run at a different rpm if you buy certain fans that are meant to run quietly they're probably gonna have a lower operating rpm and that's just because the slower the fan rotates typically the choir it oughta quieter it is so I set a fan curve for all of our case tests to 50% on the motherboard so no matter what fan I plug into it whether it be voltage or PWM those fans are set to run a 50% max load this is fair in my eyes because if you throw a 200 millimeter fan in here right those fans are gonna Pepsi really those fans are gonna turn much slower than 120mm fans because they don't have to turn as fast to move the same amount of air so 50% of that fan curve or that max rpm might be 400 rpm right whereas these fans might be operating it closer to a thousand in fact I think they're operating at like 950 at a 50 percent curve so that's why it's not going to be the same rpm for every fan and that's just because some fans are designed to run slower than others I'm not going to fault or give an advantage to any stock fan they're all gonna run at the same percentage of their full curve their full potential the exhaust fan we're gonna be using is the chrome accent octave n FF 12 PWM 120-millimeter fan it is a black fan unlike some of NOx was frankly ugly or brown ones which is nice that's why they call it crow max also some other reason why I call it pro max is because you can swap these out black looks good with really any background color you have yellow blue green red white and black rubber vibration mounts that you can install pretty easily on these fan frames and you can effectively change the color and theme of the fan to match your build so another perk of going with the chrome expand it's also going to run fairly quiet because it is an octave event after all I've linked one of these down below if you're interested knocked with something's a long time ago for builds and whatnot and I haven't actually taken the time to showcase one of these for you guys so this is one we're going to use 50% fan curve the operating rpm is like 50 hundred rpm so I take that indicator into account for pin again and the acoustic noise 22.4 DBA okay yep alright let's show this into the system alright and we've just crossed the 30 minute threshold you can see things have leveled out they lit off quite a while ago and that's indicative of air-cooled builds right you can saturate a you know a smaller CPU cooler fairly fast whereas if you're using an a IO or something that involved water then you would have to let this run for I would say at least 30 minutes but probably longer than that in some cases depending on how big the loop is because it takes a lot more energy to heat up water a unit of water a certain amount of water by one degree Celsius so this is just for good measure right running at this long we're gonna click stop and we're gonna check these stats again and the hottest core again was core 5 at 85 degrees Celsius now this is interesting so I didn't expect this at all this is weird the GPU diode that's just the the diode in the GPU itself to measure temps 74 degrees Celsius that is if I recall correctly a 3 degrees Celsius drop from the non exhaust fan run so it's probably happening if the exhaust fan is pulling out more of the would be the case that we didn't have an exhaust fan that allows the internals of this case to run at a slightly lower pressure than stock so we were running at a fairly positive pressure to begin with this kind of reduces that differential between the atmosphere and the internals of the case and that probably allows the graphics card to pull more air into the shroud from behind right so if there's more pressure inside the case and there is an atmosphere it's gonna be harder for the graphics card to pull even more air inside the case because remember you know pressure flows from high to low right so we're areas of high pressure exist that wants to escape it wants to go up the basically vent atmosphere and so that's counteracting the pull of the graphics card trying to get that fresh air in from the back which is what we saw with the H 500 right that's why graphics card temps in the H 500 were a lot better than we expected despite not having a fan up front giving the card fresh air because we were running a negative setup in that case the graphics card had no issues pulling fresh air in from the back interesting results here so now what I've done just for one more test because I feel like well we're at it we might as well try a few other things I'm going to max out the fan curve for the exhaust fan so now you can see remember on the boxes that it was around 1500 rpm plus or minus 10% so right now at full speed we're at about 1400 a little over 1,400 rpm for that exhaust fan it will remain this speed for the duration of the test and now we are going to see if the CPU can drop by even one degree Celsius and coming up on 30 minutes one last time here we're gonna hit stop statistics and look at there finally our hottest core core 5 has dropped by 4 degrees from 85 to 81 so we could conclude a few different things from these tests first up I don't want you guys to generalize this too much because we only tested one case every case is going to have its own unique air flow characteristics I will say that we can kind of generalize this at least for mid towers with somewhat restricted front panels and in the situations where we have three fans that are in a pool in air through a you know restricted panel I think this is where this would apply the most adding an exhaust fan and definitely benefit the graphics card for reasons we explained a bit earlier as for the CPU we saw no temper to change at all when the fan was running at 50% of its max rpm if you do decide to run that fan at a hundred percent rpm for the entire gaming session or whatever workload session you're running then sure your CPU will benefit from that my point is you won't see those gains until you set that fan to some unrealistic curve I would not advise anyone go out and just by default set your fan curve to 100% for the entire load that to me is just it's not realistic and you don't need to do that and your CP is gonna be just fine running two or three degrees hotter assuming you're not a raid t-junction and assuming you're not being thorough thermal throttle so yeah I mean the graphics card sure benefitted by what three degrees I'll give you that that's a a noteworthy decrease in temperature just by hitting an exhaust fan you wouldn't think at first that it would affect that and I was kind of surprised at first but I think it makes sense the more we look into it but yeah the CPU I mean you've got to turn this fan up to really get it to pull more heat from the CPU cooler you've already got a CP cooler fan effectively exhausting air like it's literally pushing air through the exhaust vents in the case so adding a second fan there it's just gonna speed that process a bit more but you're only gonna see those results again when the fan is turned up so I'm not willing to outright say that an exhaust fan will radically change anything about the tests that we run having an exhaust fan is good it's a good practice even if it's a cheap fan assuming it's not gonna run super loud and again around a 50% curve that's just what I use other reviewers might use 40 percent 80 percent heck they might set a specific rpm for every fan and that's fine they can justify that how they want I feel like I've justified my enough in this video but I'm willing to say that yeah exhaust fans I'm not going to throw into every case if manufacturers choose to throw one up there that's fine I'm still content on testing cases exactly how they come out of the box someone said well what if the case doesn't come with any fans well in that case what I would do is include two or three fans would probably only be two and then I would add the price of those fans to the price of the case not gonna be expensive fans but I expect that people who buy this case will also have to buy fans so if you're not going to include fans out of the box then I'm going to add that to the price or my overall outlook of that case so that's how I do it everyone's gonna do this stuff differently but at least at least we learned something I learned something I didn't know that adding an exhaust fan would change graphics card temps more than CPU temps that'll lower curve so that's interesting I hope you guys enjoyed this one thumbs up if you liked it click the red subscribe button now I'll catch you in the next one this is science studio thanks for learning with usthis video was not planned I am kind of doing this impromptu because I received more than a few comments about the lack of an exhaust fan in the P 400 a and how my conclusions were somehow skewed because I didn't include another fan I just used the fans that came with the case that were installed out of the box you guys know why I do that I test things out of the box because that's how most people tend to leave things I don't expect all of you to have extra fans laying around that you can pull from build to build although that would be ideal I just don't like to leave those people out so I stressed in that video this was gonna be more of a worst-case scenario because first off we're using the white version which is gonna reduce the porosity of the front panel but also that we were using just the three fans because three fans is typically enough for most posts cases out there it's a at least most mid towers three fans should be enough I left them in the stock config because I figured fantex knew what they were doing if you have a porous front panel they're gonna put as many fans up there as you can because you can get more air into the case and whether or not it's a negative or a positive pressure differential between the case and atmosphere I think that that's more or less irrelevant a lot of people who do this like case testing for living and people that work in Nvidia AMD and elsewhere will tell you that the pros and cons of positive and negative pressure really kind of they kind of balance each other out whether you're doing one or the other as long as you have some movement of air in and out of the case that's what you should be going for and you guys were hinting at a few of you were hinting at how including an exhaust fan would speed up that air removal process get rid of some of that heat and lower CPU temps possibly you can grab its contents I'm not sure how a single exhaust fan at the rear next to the CPU cooler is gonna affect graphics card temp so we'll find out in this video the whole point is to learn something so we're gonna see if one exhaust fan can make a heck of a difference because that's what some of you seem to think so we'll see if you're rockin the Windows 10 operating system and haven't activated your copy click the link below and purchase an OEM license from s CD key then click here here here and then here paste your activation key and you'll have a fully activated OS in seconds and make sure to use my offer code as studio for an 18 percent discount on your order so we will need to rebuild our entire system in this case that's okay part of the job not a big deal some of you were complaining about the fact that I was using the stock fans that's not gonna change I'm not gonna swap these fans for Noctua fans it's not gonna happen you can go to other channels for that stuff I'm gonna test what comes in the box and I might add to that just to play around with it like we're gonna do in this video but I'm not gonna swap these out entirely some of you were saying that these fans weren't ideal for pulling air through if that's the case that's fantast fault and I'm still gonna conclude the way that I concluded in the original review we did also test the viability of the mesh by completely masking it off and allowing air to be pulled in from the top and bottom as was the case in traditional p400 and concluded that the mesh itself was not very effective at allowing air to pass through it so I'm not sold on the idea that replacing these fans will magically make the mesh any more porous like that's why I ran the tests that I did in that video so these fans are gonna stay in here there's my justification for that the only variable in this video is going to be that single exhaust fan we're just gonna see how big a difference that one fan makes for temperatures on both our CPU and graphics card yeah all right let's build and then I will show in real-time the test will try to replicate our results from the review video first and then we'll throw that one fan in there and see how things change all right I'm gonna try a really cool jump at you ready for this three two one alright that was probably really cheesy but I was like 20 minutes of work that's pretty straightforward alright now coming up on 30 minutes for this test I kept the monitor pretty far away from the case because I don't want the heat from the monitor to affect temperatures here again we want to keep this isolated I've made sure Pepsi is not messing with anything Pepsi Pepsi not messing with anything right alright so let's stop this and we are going to appear to statistics and look at that core 585 degrees that's exactly what we found last time and GPU diodes 77 degrees let's see I have my phone here to double-check I don't remember exactly what graphics card temps were as long as we're within 1 degree Celsius of yesterday's temperatures we'll be okay p400 a panel on 85-77 ok cool so exactly what we got yesterday on this test so if you were doubting my results from yesterday you could see it in real-time here by the way all of our fans are running at a 50% fan curve the reason why I use 50% and and I don't set it to an hour p.m. specifically is because every case fan is different so every fan is Pepsi what are you doing hey what are you what are you doing what are you doing anyway every case fan is designed to run at a different rpm if you buy certain fans that are meant to run quietly they're probably gonna have a lower operating rpm and that's just because the slower the fan rotates typically the choir it oughta quieter it is so I set a fan curve for all of our case tests to 50% on the motherboard so no matter what fan I plug into it whether it be voltage or PWM those fans are set to run a 50% max load this is fair in my eyes because if you throw a 200 millimeter fan in here right those fans are gonna Pepsi really those fans are gonna turn much slower than 120mm fans because they don't have to turn as fast to move the same amount of air so 50% of that fan curve or that max rpm might be 400 rpm right whereas these fans might be operating it closer to a thousand in fact I think they're operating at like 950 at a 50 percent curve so that's why it's not going to be the same rpm for every fan and that's just because some fans are designed to run slower than others I'm not going to fault or give an advantage to any stock fan they're all gonna run at the same percentage of their full curve their full potential the exhaust fan we're gonna be using is the chrome accent octave n FF 12 PWM 120-millimeter fan it is a black fan unlike some of NOx was frankly ugly or brown ones which is nice that's why they call it crow max also some other reason why I call it pro max is because you can swap these out black looks good with really any background color you have yellow blue green red white and black rubber vibration mounts that you can install pretty easily on these fan frames and you can effectively change the color and theme of the fan to match your build so another perk of going with the chrome expand it's also going to run fairly quiet because it is an octave event after all I've linked one of these down below if you're interested knocked with something's a long time ago for builds and whatnot and I haven't actually taken the time to showcase one of these for you guys so this is one we're going to use 50% fan curve the operating rpm is like 50 hundred rpm so I take that indicator into account for pin again and the acoustic noise 22.4 DBA okay yep alright let's show this into the system alright and we've just crossed the 30 minute threshold you can see things have leveled out they lit off quite a while ago and that's indicative of air-cooled builds right you can saturate a you know a smaller CPU cooler fairly fast whereas if you're using an a IO or something that involved water then you would have to let this run for I would say at least 30 minutes but probably longer than that in some cases depending on how big the loop is because it takes a lot more energy to heat up water a unit of water a certain amount of water by one degree Celsius so this is just for good measure right running at this long we're gonna click stop and we're gonna check these stats again and the hottest core again was core 5 at 85 degrees Celsius now this is interesting so I didn't expect this at all this is weird the GPU diode that's just the the diode in the GPU itself to measure temps 74 degrees Celsius that is if I recall correctly a 3 degrees Celsius drop from the non exhaust fan run so it's probably happening if the exhaust fan is pulling out more of the would be the case that we didn't have an exhaust fan that allows the internals of this case to run at a slightly lower pressure than stock so we were running at a fairly positive pressure to begin with this kind of reduces that differential between the atmosphere and the internals of the case and that probably allows the graphics card to pull more air into the shroud from behind right so if there's more pressure inside the case and there is an atmosphere it's gonna be harder for the graphics card to pull even more air inside the case because remember you know pressure flows from high to low right so we're areas of high pressure exist that wants to escape it wants to go up the basically vent atmosphere and so that's counteracting the pull of the graphics card trying to get that fresh air in from the back which is what we saw with the H 500 right that's why graphics card temps in the H 500 were a lot better than we expected despite not having a fan up front giving the card fresh air because we were running a negative setup in that case the graphics card had no issues pulling fresh air in from the back interesting results here so now what I've done just for one more test because I feel like well we're at it we might as well try a few other things I'm going to max out the fan curve for the exhaust fan so now you can see remember on the boxes that it was around 1500 rpm plus or minus 10% so right now at full speed we're at about 1400 a little over 1,400 rpm for that exhaust fan it will remain this speed for the duration of the test and now we are going to see if the CPU can drop by even one degree Celsius and coming up on 30 minutes one last time here we're gonna hit stop statistics and look at there finally our hottest core core 5 has dropped by 4 degrees from 85 to 81 so we could conclude a few different things from these tests first up I don't want you guys to generalize this too much because we only tested one case every case is going to have its own unique air flow characteristics I will say that we can kind of generalize this at least for mid towers with somewhat restricted front panels and in the situations where we have three fans that are in a pool in air through a you know restricted panel I think this is where this would apply the most adding an exhaust fan and definitely benefit the graphics card for reasons we explained a bit earlier as for the CPU we saw no temper to change at all when the fan was running at 50% of its max rpm if you do decide to run that fan at a hundred percent rpm for the entire gaming session or whatever workload session you're running then sure your CPU will benefit from that my point is you won't see those gains until you set that fan to some unrealistic curve I would not advise anyone go out and just by default set your fan curve to 100% for the entire load that to me is just it's not realistic and you don't need to do that and your CP is gonna be just fine running two or three degrees hotter assuming you're not a raid t-junction and assuming you're not being thorough thermal throttle so yeah I mean the graphics card sure benefitted by what three degrees I'll give you that that's a a noteworthy decrease in temperature just by hitting an exhaust fan you wouldn't think at first that it would affect that and I was kind of surprised at first but I think it makes sense the more we look into it but yeah the CPU I mean you've got to turn this fan up to really get it to pull more heat from the CPU cooler you've already got a CP cooler fan effectively exhausting air like it's literally pushing air through the exhaust vents in the case so adding a second fan there it's just gonna speed that process a bit more but you're only gonna see those results again when the fan is turned up so I'm not willing to outright say that an exhaust fan will radically change anything about the tests that we run having an exhaust fan is good it's a good practice even if it's a cheap fan assuming it's not gonna run super loud and again around a 50% curve that's just what I use other reviewers might use 40 percent 80 percent heck they might set a specific rpm for every fan and that's fine they can justify that how they want I feel like I've justified my enough in this video but I'm willing to say that yeah exhaust fans I'm not going to throw into every case if manufacturers choose to throw one up there that's fine I'm still content on testing cases exactly how they come out of the box someone said well what if the case doesn't come with any fans well in that case what I would do is include two or three fans would probably only be two and then I would add the price of those fans to the price of the case not gonna be expensive fans but I expect that people who buy this case will also have to buy fans so if you're not going to include fans out of the box then I'm going to add that to the price or my overall outlook of that case so that's how I do it everyone's gonna do this stuff differently but at least at least we learned something I learned something I didn't know that adding an exhaust fan would change graphics card temps more than CPU temps that'll lower curve so that's interesting I hope you guys enjoyed this one thumbs up if you liked it click the red subscribe button now I'll catch you in the next one this is science studio thanks for learning with us\n"