With the radiator at intake, the radiator will perform some degrees-C better, but you're now pushing warmer air into the case. If you have the cpu aio radiator as exhaust, it’s trying to cool the cpu with the air from inside the case, which may have already have been warmed up by the GPU. So essentially the PSU would have to be cooled by the exhaust air of the radiator. And these differences are going to be exacerbated noticeably if the graphics card(s) aren't included in … Which way should the fans on the aio cooler go (i think push is better and im leaning that way). I've got a case with a 120mm intake on the front and an 80mm intake on the side, but no exhaust fans. Heat rises, so its best on the front or side as intake. Side-mounted fans can be intake or exhaust, depending on the setup. I would put radiator in top as exhaust. I’m going to … Using radiator as intake on the other hand hardly effects GPU temps in game. I would suggest 280mm radiator, but then it would flow more air then front intakes … 2 front and 1 back. I would be mounting the radiator in the top of the case and would look like this setup.. Cs342, I suggest you turn the side fan to exhaust, add a rear fan to exhaust. That's my problem because using it on top is the only option for this case. Cooler CPU temps with no real effect on GPU temp, even at extreme CPU temps. level 1. Glad to see my setup is optimal for my needs (and seeing as my hearing sucks noise isnt much of an issue for me) Thanks mate, cheers. Zombie Cat. I was using a 280mm radiator in the front initially, I then swapped for the 240mm radiator … Putting the AIO in exhaust or intake has a really minor effect on temps actually. aio cooler radiator as intake on front? This will make it harder for the cpu to shed heat. The key, therefore, is to add fans that either get rid of this ambient heat or bring in fresh, cooler air to be used. Nice rig btw My Phanteks Enthoo Luxe case has one front 200mm fan, one rear 140mm fan, and a Corsair H100i AIO cooler (with two 120mm fans) pushes air through the radiator and exhausts out the top of that case as well. As exhaust, you've got warmer air pushing through the radiator. After much extensive testing on UTube (Jay's Two Cents & Linus Tech Tips are 2 good channels to watch) It really does not matter. Why didn't I test this sooner?Top vs. Front radiator placement with different GPUs tested! Specs: For your system, there is no reason not to set the fans on the H115i to exhaust out. If the radiator fans are exhausting, they would be pulling hot air from the gpu through the radiator. will this make the cpu hot if hot gpu air is in the radiator? Q: Should radiator fans be exhaust or intake? The reason for the difference is that the top of my case cannot take a 280mm radiator. Because I'm planning a small footprint build, where I might have to put the AIO radiator under the PSU. Yes, and the suggestion in the manual to use the fans as intake is contradicted by the picture right above it that shows the fans in an exhaust position and arrows pointing up and out. 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. #2. Depends mostly on case airflow/spacing and the actual GPU cooler. The heated air is removed and the cycle continues. Works well. If you have the radiator as intake it will be cooling with fresh air from outside the case, which is more effective. I switched my old H100i setup from top to front Mounted, reducing temps by up to 10 degrees. Two stock 140 mm fans intake in the front and a stock 140 mm fan in the back for the moment, will stick some pretty ones in later, and I guess the top mount PSU (SeaSonic 650 Plus Focus) will exhaust a little too. I used them initially in the XPS 8930 mod, and they were great at keeping the i7 8700 temps in check. I'm curious. Its kiddie cooling. Currently running 2x AIO CPU rads top mounted, 1 intake, 1 exhaust because i couldn't decide! It depends on how the other fans in your case are mounted. In my previous system I had my radiator sitting outside the case, but this time I'd like to get it mounted in or on the case in some way. In short I always push air through the radiator and exhaust at top. Nice case! again, this has been demonstrated to work. I have a Corsair H110 with stock fans and I run push intake with the radiator on top, exhaust out the rear 2 fans intake from the front. If used as an exhaust, the internal components are still getting the same temp air input as before, but are now assisted by the radiator so the CPU will run cooler. I would put radiator in top with front full of intake fans, high pressure rated fans. I'm new to water cooling and just bought a corsair aio. There is no catch 22. So, if you want optimal overall temps, you should give your radiator fresh air. AIO as exhaust or Intake? You have to move the heated air out of the case. Once I do the CPU AIO successfully it will be time to work on AIO for the GPU. ... Front intake rear and top exhaust. Q: How do I clean my AIO radiator? If you install the H60 in either top exhaust position, you can configure a push/pull radiator sandwich with two 120mm fans, which should provide plenty of air flow out of the case. Running with the radiator in the front with EVGA’s fans pushing, and with the 200mm fans in the top as exhaust, our numbers output as 59C over ambient for … AIOs are best used as intake. is this a bad air flow? The Intake-exhaust direction should go front-to-back and bottom-to-top. I didn't want to open up the top of my case for dust purposes. a) lower front as intake - a la HanoverB. The air doesn't have much time to heat up inside the radiator, so I'm assuming the intake vs, exhaust temps can't be that different? As intake fans usually have inlet air filters which resist more air as they get clogged with dust ... you'll want to have at least 1.33 times the number of intake fans as exhaust fans. Good looks with lots of funtionality. A: The idea is to create static pressure in the case. Hi I’m planning to build a pc with a meshify c the case comes with two stock fans one intake and one exhaust. But the impact there would be negligible, however the custom loop is going to pull in some graphics cards and cooling efficiency is going to become a priority. Most commonly you want to aim for positive pressure, so if the radiator is in the back or the top, make it exhaust; if it's in the front or bottom, make it intake. Although if I get the AIO with only One 120mm fan I could do that as intake and keep one fan at the top as exhaust. 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