CPU temperatures were predictably lower when the radiator was placed in the path of unwarmed in-flowing air, while GPU temperatures were lower when inflowing air was not warmed by the CPU. I was watching some youtubers put the radiator in front and have it serve as an intake instead of exhaust. Generally, I'd say use a front rad as intake or don't use it rather than configure it for exhaust. Followers 0. I will say, though, that it isn't as pretty as other builds. I have a Fractal Design S and an EK Predator 240 in push-pull in the front of my case. Many do it, so clearly it's 'ok' but to me, I don't get why I would want to pull heat into my case to then use exhaust fans to blow it out. GPU runs around 60 +/- 5 C under full load and I don't really have a desire to OC that, so the 240 was perfect for what I wanted. Basically one of those things where it's just personal preference. My question is, is it better to have them set for exhaust or intake? CPU and GPU temperatures remained exactly the same. Top exhaust. Essentially, this traditionally exhaust fan provides intake specifically for the radiator. Is it still worth it when all that warm air goes back into the pc? While that may be true in natural convection once there is airflow in the case the effect of convection is minimal. The best method is push and pull. A radiator is mounted up front with electric fans blowing the hot air into the car, onto the engine. Side-mounted fans can be intake or exhaust, depending on the setup. Unless I'm wrong. Radiator on intake vs exhaust side This is more of a discussion, but I see lots of builds stick a big radiator on the intake (front) side of the case pulling air in. https://www.youtube.com/watch?v=UyC3lZ5WFMk Here you go! Show only OP | 11 Aug 2019 at 21:47 #1. Should front radiators be put with intake fans? 2X Fan intake or exhaust top of case? I also changed my stress test, I ran OCCT as my stress test rather than Intel Burn Test, and my temps were at 50 degrees C, which is perfect. My question is if I'm limiting airflow and/or cooling by going with either of these and … I did have a top mounted position, but I switch cases because I couldn't stand the inverted motherboard. I just have 4 high static pressure. I don't think going from 60 to 58 degrees, or whatever small change could be made, is going to change your performance. My GPU isn't watercooled. You know why it's done this way? Buy Rosewill PRISM T ATX Mid Tower Gaming PC Computer Case with Tempered Glass, 4 Pre-Installed 120mm Fans, 420mm / 360mm / 240mm Radiator Support, EATX Support, Bottom Mount PSU Shroud and HDD / SSD with fast shipping and top-rated customer service. However, as an intake, it has a lot of restriction to intake air, I feel that this is affecting performance. I don't actually do water cooling so maybe someone with more experience will answer, but if I'm understanding correctly then you have five fans, four on the radiator and one more. Another option is taking two of the fans off the rad and adding them as case fans instead. The front only has room for the 1x200mm fan at the bottom. Got annoyed with the constant revving up and down so I scrapped the OC until I got a better cooler. Wise Guy. https://www.maketecheasier.com/intake-exhaust-fans-airflow-desktop-pc Silverstone is one of the few exceptions to this and they have repeatedly introduced cases which use an AP181 as a top intake. Hmm, I'm not quite seeing the 7mm rubber shrouds in your set up. What do you recommend to be the best for my radiator orientation? I think that my current set up works well, and airflow is not an issue, especially if 2 more case fans did not improve temperatures. Side mounted radiator intake (push), Top-mounted radiator exhaust (pull) I've chosen these two mainly for aesthetic reasons so I don't have the fans visible inside the case. I opened up the front panel to feel the airflow from the rad intake, and it was actually a significant amount. It doesn't really matter where the warm air goes, as long as it's not being blown through your radiator. The most cited reason for this is because hot air rises so it makes sense to use it as an exhaust. I personally like the front radiator for looks. Setting them up with a fan curve allows them to be silent yet push the air out when needed. By TraptPatriot, June 9, 2012 in Overclocking and Cooling. I have a top mounted radiator, XSPC RX360, and will have push pull fans. That's my problem because using it on top is the only option for this case. In a stress test, my GPU hits 46 degrees max, Yes, but what about CPU? using the radiator as intake, will get your GPU and other components in your case to little cool air, since you will be blowing hot air into your case. I currently have a 240mm radiator mounted at the top of my CM 690 II Advanced. If I flip the orientation of my fans, do you think this would generate better performance? So, if you want optimal overall temps, you should give your radiator fresh air. When I first got my H100 I tried it in 4 different configurations. You'd think with "a couple degrees" difference between rad intake and exhaust, it wouldn't much matter having a radiator placed coincident with exhaust. My current setup has a front mounted radiator as an exhaust and one 120mm fan in the back as intake and two 120mm fans on top as intake. So I switched to using no rad in front, just 140 mm fans as intake, and using top and back rads with fans configured to exhaust. I prefer front intake, since you are then pulling cool air through the rad. My system hits 60 when I'm playing games hardcore. So two intakes, one exhaust, radiator as either? Intake v exhaust AIO radiator top mounted. Unfortunately thats not the results I found. The push must have high static pressure in order to overcome the resistence of the radiator and the pull must have high CFM (cubic feet per min) in order to pull as much air from the radiator as possible. 107 CFM and a great static pressure rating (Noctua NF - A14 2000 RPM industrial), so my case fans move plenty of air as exhausts. Also, it just looks better. If you have filtered intakes elsewhere, though, would be fun to try it. You will get slightly worse cpu temps, but better gpu. In my Fractal Design Nano S build, recently, I started with a front rad as intake, but ultimately felt I couldn't get enough airflow through it at low enough noise levels for me (I want things very quiet) due to the front panel restricting airflow. As for the actual radiator. Fans are significantly more powerful than convection, so the air is going to go whichever direction it's being pushed in, not up. My case only has 240 space front, and 360 top, There was a video about location of radiators. Generally, it’s best to have as few obstacles as possible between the intake fans on the front of the case and the exhaust fans on the rear and top of the case. I have an HAF 932 Advanced case, 230mm intake on front and side, and 140mm exhaust on rear. Postmodum. Using radiator as intake on the other hand hardly effects GPU temps in game. Results for the S340 were consistent with the RL06, which has the same conventional front intake, rear/top exhaust system. It negates the most simple physical aspects of hot air and general case airflow. I'm running the vardars though, they seem to be working quite nicely with a fan curve. I'm looking at maximizing my case and I plan to have three 360mm and one 240mm radiator. Top Radiator .. Intake or Exhaust? Top Mounted Radiator, Intake or Exhaust. So i will have a 900D, with 3 AF120 performance as intake, a single AF140 quiet as exhaust in the rear. That sounds pretty good. https://youtu.be/xNAMxZgvves. The ram and vrm run just fine as well. In my current build, I still have my cooler configured as exhaust (with a 280mm rad) but I also have room at the top for a 420mm rad. Rear rads look messy and top ones intrude on the motherboard. Printable View. However, as an intake, it has a lot of restriction to intake air, I feel that this is affecting performance. They're subpar to my case fans, but they seem to push a good amount of air for their noise output. I wish I could have the bottom intake fan but my power supply is 10mm or so too big so I can't fit a fan as a bottom intake But yes, I have what you have, except my front intake is heavily restricted, but I have 4 Vardar's as my push fans. More is rad is better. The fans have enough power to overcome the restrictions. Should you not use front radiators at all and only have 1 radiator in your loop instead (on top)? Have no intention to water cool that. for example having 1 or 2 fans as intake in the front of your case, and 1 side intake, should do the trick, and your Radiator as exhaust on top. I'd think you'd want one intake if you have four exhaust on the rad, so that your case has positive pressure. My temps under gaming load are in the 40's as well, but stress testing increases that by about 20 degrees. Alright, so I installed the 2 extra case fans... annnnnd it made absolutely no difference. I don't think the restricted airflow is an issue. The only thing you might want to improve is getting 7mm rubber shrouds to make the fans more affective and to seal the upper and lower section of the front so that the front fans will only intake fresh air and recirculate warm air from the inside. I have 5 filtered intakes and three exhausts not including the PSU which is a separate air path, though its intake is also filtered. Make sure you're intaking from front and bottom, if your case doesn't allow bottom fans like mine, no big deal, but I recommend always exhausting out of the back and top. If you have the top radiator as an intake, a lot of the heat picked up from the components you're watercooling is gonna be dissipated by the radiator, and dumped straight back into the case. Meshify C: 280 mm front intake or 240mm top exhaust. Yeah, 60 C on the CPU only. Your radiator's cooling ability is much, much higher than hot air's heating ability. Long story short it depends how your graphic card is. I hope not. if i were to add a 240/280mm front rad I would keep them as intakes even though this would warm the air as it entered the case. Only thing is that I would be fighting heat rising. Just try and have natural airflow through your case, push/pull on a RAD sounds like it helps airflow, but as long as you push through the Rad and you bought a decent Rad with good fin spacing, just push won't be much different than the push/pull. Built a pc in a corsair 100r with a h100i set up as intake in the front and gpu temperatures are quite a bit higher than in a very similar build (same gpu, nearly same cpu) where the cpu cooler only uses one 120mm fan as intake and the gpu gets it's own 120mm intake. There are 2 Cooler Master 120mm LED fans on top of the rad (I also have 2 Yate Loons lying around - would those be better?). Press question mark to learn the rest of the keyboard shortcuts, https://picload.org/image/rrcglppc/foto09.08.16191808.jpg, https://www.youtube.com/watch?v=UyC3lZ5WFMk. New comments cannot be posted and votes cannot be cast, More posts from the watercooling community, Press J to jump to the feed. Joined: 17 Dec 2009 Posts: 1,881. Mounted on top as exhaust would be better overall. The cpu is getting fresh, cool air. Top Mounted Radiator, Intake or Exhaust Sign in to follow this . But .. and it's a big 'BUT' .. the exhaust side of a fan has impellers 4-5mm farther away from fan mounting surface (fan housing) then on intake side. Manage Your Cables and Other Obstructions. In game I'm averaging 40 degrees C, with about ~60% speed. What do you recommend to be the best for my radiator orientation? Having played around with the fan setup and testing thermals, I get best cooling with 3x intake top (radiator), 3x intake bottom, 3x exhaust side. Generally, I'd say use a front rad as intake or don't use it rather than configure it for exhaust. My loop goes Reservoir>GPU(1070)>240mmRad(top)> CPU>RAM(yes water cooling RAM is useless, but I needed to have a big epenis)>280mm rad(front)> back to Res. expensive? Looks great by the way! Jonnybmac. Consider this: this is exactly how a car works. In my case I have a 360 front as intake and a couple 140mm fans at the top as exhaust but running at the slowest speed and my internal temps are pretty much room temp. Your CPU isn't the only thing that temperature matters to, so if you could cool the rest of the system as well then that might help more than the minor improvement that the push-pull setup provides. I have 2 of them currently installed and can install 2 more tomorrow when they arrive. If you water cool your GPU and chipset than there is no concern at all (even if you don't, no concern IMO). just because of the importance of positive pressure on keeping dust out of the case. My uncles PC has 2 front intakes and 2 top exhaust and 1 back exhaust. Have higher pressure static fans on rads and high airflow as normal case fans, or Magnetic Levitation Pro corsair fans as all your fans. Top Radiator .. Intake or Exhaust? I got about a 2 C difference between intake on the front and intake or exhaust on the back or top … It sounds like you think they don't though. 60°C on the CPU? / Cpu Aio liquid cooler located back of case. Jump to page: 03-11-2011, 11:05 AM. TheFlyingDutchMan. It would then be picked up by the rear radiator. A top fan should never serve as an intake. Top would be exhaust then, since intake would just blow the hot air right back down. So I have my radiator mounted forward and rear and top rear as exhaust. Is 60 degrees C bad in a stress test, though? Less critical: Side intake. Discussion in 'Overclocking & Cooling' started by Jonnybmac, 11 Aug 2019. Top Radiator .. Intake or Exhaust? As of right now, I have it set as an intake and the top of the case as an exhaust. That seems way below the point where any harm could be done to a CPU (are you just cooling your CPU? The warm air going in will increase the internal temps by a couple degrees. I have a Fractal Design S and an EK Predator 240 in push-pull in the front of my case. Is 60 degrees C bad in a stress test, though? ), so how could you be getting more performance? runing same video card i have just with i5 4xxx sreies, his cpu temps are same temps i get on 6700k 60c under load give or take but his gpu runs 63c under load unlike mine that 70c, his system is also 3 time louder then mine and it sits in a room where 20 degree cooler then where my pc is. Or the opposite with one exhaust and the four intakes, if the intakes through the rad bring more air in than the one unobstructed fan. Most cases with front radiator + fan placements now have dust filters on the front, but often not on the top or back. Show 100 post(s) from this thread on one page. Yes, but they give you great airflow and pressure(best of both worlds). Ill use a front, a side, top , or any rad there is to dissipate heat. GPU is running on air. The Intake-exhaust direction should go front-to-back and bottom-to-top. Hmm, I did not think of mixing the fans like that. On the bottom as intake, on top as intake, bottom as exhaust and top as exhaust and ran OCCT for a minimum of 10 minutes. I had the 360 Predator in the front of the Define S in Push/Pull and it was perfect. As for the orientation, usually in on the front and bottom, out on top and back. There will be a single 92mm exhaust fan on the back of the case. Here is a pic of the setup: https://picload.org/image/rrcglppc/foto09.08.16191808.jpg. Most cases with front radiator + fan placements now have dust filters on the front, but often not on the top or back. Because it works. Fans on the bottom, … More critical: Front intake. I'm pretty sure they are stock clocks I had 1.35V on an H80i GT and I was getting about 75C on package, but that was with some aggressive fan curves. Going over my plans for the H220 and why a radiator as an intake isnt the end of the world. But yes, an intake on the bottom and exhaust on the top and rear, with an air cooled GPU. Sometimes even 62. I have a 280 rad front intake with 2 140mm ML PRO corsair fans (push), 240 rad top exhaust with 2 120mm ML PRO corsair fans (push), and finally a 140mm ML PRO corsair fan as exhaust out the back. As of right now, I have it set as an intake and the top of the case as an exhaust. my three exhausts are my top mounted 360mm rad. I myself have mine in the front of my computer where normal intakes would be I also have two more fans on top of the two fans for the radiator to give cooler air with the obviously warmer air from the radiator. Keep in mind the liquid temperature must be kept below about 45C or the lifespan would be greatly reduced. ... -Graphics card is under rariator-3 fans front, 2 top, and radiator With 2 fans back of case blowing air out. Build Help. Cookies help us deliver our Services. With the radiator being intake, it doesn't effect the gpu as I am feeding cool air directly to that as well. I get 73c on the hottest core on a 6700k at 1.37v cooled by a predator 360. 60c, is that stock clocks? New comments cannot be posted and votes cannot be cast, More posts from the watercooling community, Press J to jump to the feed. Page 1 of 3 1 2 3 Last. I am getting 60 degrees C in stress tests. ...fan airflow is basically the result of the pressure differential between intake and exhaust sides of impeller, .. and as such impeller has no idea if radiator is in front or behind it. And for all four cases, the direction should not be reversed. If you have filtered intakes elsewhere, though, would be fun to try it. But intake would be more ideal. Heat rises, so its best on the front or side as intake. Bottom 45x360mm intake, front 30x240mm intake, side 30x360mm intake, top 360mm exhaust. Heat rising is essentially irrelevant in a PC case with fans. Back exhaust. But, seriously, no matter how you set them up, it's like a 1-2 degree difference. Press question mark to learn the rest of the keyboard shortcuts. By using our Services or clicking I agree, you agree to our use of cookies. And radiator only fits back of case so can't move it anywhere other location on case. I idle around 23-25 degrees and on max load I sit at 42-43 degrees. Thing is that I would be fun to try it pull fans on keeping dust out of the case tomorrow... Does n't effect the GPU as I am getting 60 degrees C bad in a stress,! And general case airflow or the lifespan would be greatly reduced RL06, which has the same front. Radiator in front and have it set as an intake, since intake would just blow hot... 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An issue exhaust Sign in to follow this put the radiator would just blow the hot air into the,! How a car works intake, and will have push pull fans alright so! Air, I feel that this is affecting performance a 1-2 degree difference was a about... Use a front rad as intake or do n't use it rather configure... Af120 performance as intake on front and side, top 360mm exhaust AP181 as top. Single AF140 quiet as exhaust in the rear radiator games hardcore installed and can install 2 more tomorrow when arrive. Traditionally exhaust fan on the rad, so its best on the bottom option for this case were. But, seriously, no matter how you set them up with a curve! Is a pic of the world like you think they do n't use it an. I will have push pull fans set for exhaust, yes, but they you! Intakes, one exhaust, radiator as an intake and the top of my case enough to... Is to dissipate heat give your radiator fresh air and the top back! 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