Simple and informative. Great video, thank you! As other people commented, it would be useful a new test with 2/3 extra case fans. Two of them should replace the radiator. If they were already installed on the computer but they are just not visible, it would be useful the write in the description where are they placed.
cooling with cold air vs cooling with hot air (another title for the comparison) if you compare the fan position should be the same ... on the front mount cold air is hitting the radiator from outside, on the top mount hot air is pushed through the radiator ..
So this is more of an intake vs. exhaust comparison. However, if you introduce a bottom intake, top exhaust or front intake to the two setup, they might help makeup for the shortcomings.
@@DontFuckWitDreDay I have elevated my case with a couple of yoga blocks on my desk, leaving a large gap for the bottom intake fans to draw air into the case and blowing on the GPU. I like it.
@@nazmussakib1551 Why is that illogical ? vrm and rams are not cooled by CPU cooler but by case airflow. So if you have lower air temperature in the case, you cool them more efficiently. Am I wrong ?
@@Pigaroulettes You can simply put some exhaust fan on top and radiator on side mount (if that option available) . puting radiator at top heats up the radiator by gpu's hot air. so cpu temp will be higher if you put radiator at top.
If the overall case temp is lower along with the GPU, that saves you in the long run. Also good idea to add the push/pull method with your radiator, if you have room, to fix the imbalance shown when having the radiator on the top. Done both myslef, overall I side with the top for it now CPU are on par with the side mounting shown in the video while applying push/pull
@@realisticmystic2334 the problem with this configuration is that we have a temperature buil-up caused by more intake compared to exhaust which leds to "overpressure". There are simply 2 Fans missing. When AiO in Top, you add 2 more intake fans in the front. When Radiator in front you add 2 more exhaust fans on top. With either setup you have 2 intake and 3 exhaust fans which leds to slight negative pressure which gives better temp as the warm air is pushed out of the system and fresh air is pushed in because of the negative pressure. With proper fan setup the front radiator variant would be the overall winner, as the passivly cooled components and the graphics card would no longer be affected by the hot air build up.
You should also have other normal fans for a better real-world reference, nobody in the world would have AIO as the only fans(pun intended). top mounting AIO should have front intake fans and front mounting should have top exhaust fans
@@HighIgnition so according to you guys the most logical solution would be the AIO in the front (pull), one rear exhaust and at least one top exhaust? Like a more or less classical setup with the radiator added? I plan on building a new PC but I have experience with air coolers only.
@@Lortz2610 Usually mounting the radiator in the front of the case have no adverse effect on the other components when you have some fans to exhaust the warm air to the exterior of the case (back, front or side) AND the CPU benefits a few degrees in temp!
Most people would have some additional fans with such setup, and also to make test more comparable in both setups fans on the rad should be in the same position either both pull or push, not like in the video. Push is slightly better as leaked air would go around radiator but in pull it might pull air from the side instead through the rad, as it will take air from path of least resistance. In regular pc setup this might be probably 1° of difference but at least it would be the same for both test runs. And placement of the rad should depend on what is hottest in your setup cpu or gpu? And cool it so it will benefit most. As rad in front dumps all warm air inside th case gpu suffers, and vice versa cpu suffers when rad is on top as air that is going through radiator is much warmer than than air coming from outside the case.
front mounted AIO's give better CPU temps, top mounted AIO's give better GPU temps. for example if you have a 11th gen i5 11600K with a RTX 4070, a top mounted AIO will be better because the CPU doesn't get extremely hot. but if you have 13 gen i9 13900K with a 4070 i would go front mounted AIO due to the powerful CPU that gets toasty
I think the reason why the top mount has more max temp is that the fans are on the exhaust. But has a lower case temp because there is no obstruction on the airflow on the front. For the front mount, lower max temp because the fans are intake, thus pulling cold air from the outside. Having higher case temp because of radiator being on the front.
That can be right. But the more scientific reason can be as air is lighter and some air is also inside the aio. And it conducts heat less than water so when we put in top, the air in the aio goes in the radiator and good temps can be achieved. Although expensive aios don't have this issue
@@KiKeebs oh I thought he was talking about air inside the aio radiator itself since people seem to have different opinions about aio’s correct orientation. I don’t remember if the guy said it in this video but maybe his aio top mounted was pushing air out (exhaust) and the front was pulling air in (intake) or vice versa? Idk I’ve seen so many different results with different setups so I suppose it doesn’t matter all that much either way as long as you have decent airflow
If you start thinking over it all the heat from gpu and other parts going UP wards so there is a reason to put it on FRONT where no heat moves toward radiator. warm air going upwards (baloon)
Вообще-то, нагретый воздух от радиатора не нужно вкачивать в корпус в любом случае, как и выкачивать из корпуса нагретый воздух и продувать его сквозь нагретый же радиатор ))) Эффективность невелика в обоих случаях. Надо прогонять внешний холодный воздух сквозь нагретый радиатор МИМО корпуса, а не в корпус и не из корпуса. И еще, обдув радиатора считается эффективней "высасывания" из него тепла )) Полезно вообще изолировать вентилятор от корпуса.
Either way, there is going to be a tendency for warm air to flow towards the top of the case, natural convection. The top installation here allows for effective, targeted exhausting of the warm air, hence you get the cooler case temperatures. The drawback is that the radiator of the AIO loop now also resides in the warmest part of the case, decreasing the temperature difference over the radiator and thus also decreasing thermal output of the radiator and so you get warmer liquid and higher CPU temps. With the front installation it’s vice versa, you’re drawing in cooler air from outside the case, you get a significantly higher temperature difference over the radiator leading to more effective cooling of the liquid and CPU, but you don’t have the nice targeted exhaust of warm air from the top of the case, leading to a warmer air temp inside the case. I’d say the take home here is that the AIO fans should act as intake (as in the front install) and the setup should include separate fans for exhaust.
Pretty simple tbh. Hot air during a CPU-intensive workload results in higher GPU max temp. Hot air from GPU during GPU-intensive workload with AIO as exhaust results in higher CPU temps. Some things to consider: GPUs are very boost algorithm dependent these days, GPUs are generally more temperature-sensitive (I think), and during conventional CPU stress-testing or benchmarks, your GPU is generally doing fuckall. During the thing that most of us use our PCs for (gaming), the CPU won’t be doing that much work most of the time and thus the extra heat from the GPU won’t be spiking it to 90+ degrees Celsius. I guess the same can be said for having the AIO as a front intake, but the GPU kinda needs the cooling potential more doesn’t it? You can always set a fixed-core OC with a CPU I guess. By that point it doesn’t really matter as long as it isn’t running insanely warm.
Mi configuración actual es: Intel 12400F. Nvidia 4070S. Caja Corsair 4000D. Radiador 240 en el frente. 6 ventiladores: - 2 ventiladores de salida en la parte superior. - 1 ventilador de salida en la parte trasera. - 2 ventiladores de entrada en el radiador - 1 ventilador de entrada en el frontal (parte inferior) CPU: temperatura max 52ºC GPU: temperatura max 68ºC
First of all when you put the rad on top you also didn't put any intake fans at the front. Second of all, even if you did put intake fans at the front, it wouldn't make that much of a difference anyway because your case just sucks. Get a decent airflow case with mesh front panel, and slap some decent fans on it, and please do not make these kind of misleading videos unless you actually know what your doing for christ sake.
It's just about physics and thermodynamics, hot air always goes up, so with top AIO you'll be "cooling" the radiator with the hot air from the GPU/VRM, it'll lower the case temp because the hot air will be exhausted from the case through the top, but the radiator will heat up with the hot air. That's why on top mount = less case temp / more CPU temp. On front mount you'll be cooling the radiator with fresh air from outside the case and blowing it inside the case, so the only thing heating up the radiator will be the cooling liquid returning from the pump, so the average temp of the liquid will be lower on front mount because the entire radiator will be cooler compared to top mount, that's why the CPU temp is lower on front mount, but you won't be exhausting the hot air that builds up from the GPU and VRM to the top anymore, so the case temp, VRM and RAM temp raises, but it's easily fixed with some exhausting FANs on top and back of the case. So the optimal mounting option for AIO's is front mount (or side mount on dual chamber cases) blowing fresh air in and some exhausting FANs on top/back of the case to create airflow, because with intake AIO you won't be heating up the radiator with hot air.
With case Termaltake Core P5, and same parameters. CPU Min/Max 31°C/66°C GPU Min/Max 35°C/67°C I7 7700K RTX 3070 32Gb DDR4 3600Mhz Asus Maximus IX Hero
i got 420mm aio on top of the case because it cant fit front, my GPU is 3080ti and its hot and all that hot air going up in the radiator, I'm thinking that I might get 360mm and place it front away from that heat and I probably get better cooling result?
exhausting the heat outside the case is the best bet even if your cpu runs a little hotter. I have the same issue and modded my case to allow the 420mm to sit on the top exhaust fans of my case.
Might be a dumb question, but is the front positioning shown in the video - an intake or exhaust? I mean if it's an intake shouldn't the fans be on the other side of the radiator? Or are they turned 180 i.e. they're sucking air from the radiator instead of blowing onto it?
there is more or less a 1C difference between a push and a pull configuration ,they probably couldnt do it because of case specification ! the ranking is as follow push >pull>push/pull (cooler by half a degree but double the cost )l
Observe the orientation of the fans. Front mounted AIO - Grill of fans can be seen, that's an Intake. Top mounted AIO - Grill against radiator, that's exhaust.
@Shootter Thanks, mate 💯💯💯. I've got my fans in a similar orientation, but I've got 1 additional fan mounted at the rear of the case which is an exhaust fan. My PC does get warm at times tho, so I'm not sure if my fan orientations are ideal or not, I do tend to leave the fans on the low speeds for.noise purposes tho, and the AIO fans do autmatically speed up when CPU gets hot tho.. But the other exhaust fans don't.
@@pdr4m559 With the Front=intake, that is transferring heat from the heat exchange to the inside of the box versus, Top=exhaust, that is transferring heat from the heat exchange to the outside of the box. The test is dis-similar in the direction of air flow, probably also the pressure inside the box which will effect the heat transfer on the heat exchange.
@@manolakis06 problem being is that i am bringing in cool air from outside and bringing it over the GPU radiator into the case, which then goes over the CPU frame and through the CPU radiator and out the top? Wouldn't that increase CPU thermals with diminished GPU thermals? MY gpu is never more then 35c while my cpu can hit 75-80 under load? Is there more optimal route to bring CPU temps down? My current setup is as you described
LOL ))) Dislike 0:15 lfet side HAVE COOLERS INSIDE and coolers different way! turn it upside down and turn coolers on outgoing air! than test it ))))))))))