May 4, 2000 13,704 4,300 146. GPU's generally run a bit hotter than CPU's. Hi there I have 2x Twin Frozr III cards SLI and a sound card between them should I have my side fan rather exhaust air or intake. Edit- Derf- as seen below by the nice gentleman, I said this wrong. so there is two intake 120mm 60-70cfm on the front and 133cfm exhaust fan on the back and the 230mm exhaust fan on top my cpu cooler is the XIGMATEK Dark Knight my system stays nice and cool, even in gaming and video encoding. Welcome to the official subreddit of the PC Master Race. It really depends how your gpu cooler works. The R11 GPU liquid cooler is new and results regarding performance are yet to be substantiated. Personally, I would not get that GPU liquid cooler. whether its intake or exhaust depends on where you put it. If gpu cooler is back exhaust style, intake is the way to go. A difference of 2-3C, maximum. The Intake-exhaust direction should go front-to-back and bottom-to-top. So technically I would say that they're intake fans. Edited by Richard - 24 Apr 2012 at 6:50pm. Side (Intake): 200 x 200 x 30 mm fan x 1 or 140 x 140 x 25 mm fan x 1 Since I have a liquid cooler they only put in one 120mm top fan because that is all that would fit. You must log in or register to reply here. you're right in saying that when its on top, it deffinately should be exhaust(hot air rises so its more natual to set it that way). Do your GPU fans intake air or exhaust air? The GPU fans suck cool air in through the fins. For this setup, we used two 120mm fans at the front of the case as intakes and two 120mm fans … I figured I'd go with exhaust (blow air out) just to help keep dust down, but is there any real world difference? If it exhausts inside the case then exhaust is better. running prime95 for 2 hours and cpu never went past 70c (FWIW there's also obviously an exhaust fan at the back of the case) UsandThem Elite Member. GPU Cooler PCI Slot Fan Dual 92mm Graphic Card Fans for Video Card VGA Cooler 4.2 out of 5 stars 21. So that means more total intake CFM than exhaust CFM. The full test methodology is available in the GamersNexus reviewand was used throughout this cooling optimization test. You are not going to be affected by GPU waste heat unless you have a pair of 980 Ti's at the bottom. Ascend to... the PC Master Race. Beekman . Manage Your Cables and Other Obstructions. The fans intake air from the case and pull it through the heatsink, New comments cannot be posted and votes cannot be cast, More posts from the pcmasterrace community. Next best is Neutral pressure. So now I've lost an exhaust fan but I I've got a 120mm Fan left over from the H50 install (the builders kindly sent it to me) SO as I've got a very easy side fan to mount is it best to pop it onto side as an Exhaust to replace the one I've lost or an Intake to help better cool my GPU … AIO cooling GPU. A single intake fan with no exhaust fan is positive pressure. 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. How much airflow you have originally anyway. And no, I would keep your side fan as an intake, directing air toward the graphics card, in order for the graphics cards fans to ingest the cool outside air and efficiently cool the card. https://www.maketecheasier.com/intake-exhaust-fans-airflow-desktop-pc I was thinking maybe it's battling the air and I can get lower temps. I never thought about this until I wanted to add 2 intake fans on the bottom of my case to potentially keep my GPU cooler but I realised I dont really know if the GPU fans are intakes or outtakes. You also want to match the CFM – that's the air flow rate – of the intake fans to the outtakes. The top fan is an exhaust and bottom fan is an intake. Members Profile. Bottom fans can help GPU, but top venting and fans almost always cause bottom to top airflow .. which moves GPU heated exhaust up around CPU cooler. Ascend to a level that respects your eyes, your wallet, your mind, and your heart. Which would you choose? It depends on your cards design. In this subreddit, we celebrate and promote the ultimate gaming and working platform. JavaScript is disabled. DiceAir, May 27, 2013 #1. In my case, I do video rendering which puts a small load on the GPU. In fact, I didn't even install an exhaust fan until a few weeks later. A 120mm liquid cooler was used for the CPU. Regardless of how my exhaust/intake fans were configured, the upper and lower in-case temps remained relatively unchanged. I have two big 120 mm fans on the rear of my computer blowing air out of my computer (does that mean those are INTAKE or EXHAUST? GPU: Galax 980 ti HOF. The rear exhaust fan will receive the front intake from the radiator and exhaust its slightly warmed air, leaving the GPU to intake from the lower front fan. The intake fans bring cool air in, and the outtake fans expel the hot air that’s been warmed by your computer’s various parts. It blows air on the fins. if you put it in the front, i would make it be intake(cool air intake, will warm up as it goes over your components and rising automatically out the top). One fan in the front with higher CFM rating than say the 2 exhaust fans you could have combined is still positive pressure so keep that in mind. Default Coolers by Nvidia/AMD push the air to the display connectors, while most of the custom designs pull the air on the metal. 3. Setting up a balanced pressure fan configuration means equal intake and exhaust fans. An open-air GPU cooler has exposed heatsink fins on the top and bottom. It really doesn't need extra cooling from side fan since you already have two intakes in front. $15.99. For a better experience, please enable JavaScript in your browser before proceeding. So, if you just use the same three fans, that would do the job there. The 780T is no micro-ATX. Fun with LED Matrices on the Pi Cast at 1:30 PM Eastern!. I've found most of the time if good intake fans are uses no exhaust fans are needed .. and if needed it is more to change the case airflow patterns than to increase case airflow. If plenty, you could get away with Exhaust with little trade off. Better as Intake, simply because most GPU have more issue with heat management than the CPU, and often yields more noticable results from a GPU boost than a boost on the CPU from extra cooling. The additional exhaust fan made no … Reference coolers blow air out the case - but not very well. Of course there’s the CPU and GPU coolers as well as the PSU playing into it. This can be creatively modulated by CFM rating of the fans youre using. First, if you can orient the power supply so that it exhausts it’s heat to directly outside the case, that will be better. Your negative pressure graphic is not likely as you would never exhaust out the front. A blower GPU design covers these fins with plastic. GPU fans grab air and push them into your heatsink, which then blows out the sides of it. We’ll recap some of the most critical aspects here: Thermal tests were conducted using an Intel Core i7-6700K Skylake CPU and Z170 mITX platform, parts listed below. They are neither unless its a reference blower style of GPU. Press J to jump to the feed. Super Moderator. ), outside of the CPU and GPU fans that's all the fans I … (more intake fans vs exhaust). If you put your exhaust fan too close to the inlet grill, there will be localised circulation of warm air being sucked back into the machine. Press question mark to learn the rest of the keyboard shortcuts, 9900ks | 2080ti XC Ultra | z390 Taichi | 32GB 3466mhz, Core i7-8700K, GTX 1080Ti SC, 16GB DDR4-3200, 1TB EX920 NVMe. Front: 1x230mm fan (intake) Side: 1x200mm fan (intake) Top: 2x200mm fans (intake) Rear: 2x120mm in push/pull for current AIO (exhaust) GPU: ASUS 1080 STRIX so 3 open fans blowing into the case away from the GPU next to my side intake The rest of your case fans will then exhaust … No, the fans on the GPU blow the hot air down, away from the fins/chip. I've found good hi-pressure rated front intakes (3x in your case) with all back PCIe slot covers removed to increase rear vent area around GPU, block all opening in front half of case not covered by intake fans so air they are flowing into case has to move on through case to go out, (not leak around in front of fans and go in circles) and no exhaust fans are needed. You should also think how you will have PSU if it has intake fan. The GPU (GTX 980 Ti) was using an NVIDIA reference design cooler (blower fan), which will yield … I would think that the number of intake fans should be more than the number of exhaust fans, like you said. 2. GPU fans grab air and push them into your heatsink, which then blows out the sides of it. They just blow air around in the case. Then, the little fan I added exhaust that hot air out of the case, instead of re-circulating into the case. It’s not just about hot air going out, it’s also about where the cold air comes in. So technically I would say that they're intake fans You could add an additional fan to the top of the radiator for push/pull configuration, which will add some additional CPU cooling and exhaust more hot air out of the case. I'm at work so want to prepare for later. Should I have 1 intake and 1 exhaust fan, 2 intake fans or 2 exhaust fans for optimal airflow for a PC? A single exhaust fan with no intake fan is negative pressure. Does intake vs. exhaust really matter? The top fan is an exhaust and bottom fan is an intake. Side-mounted fans can be intake or exhaust, depending on the setup. I never thought about this until I wanted to add 2 intake fans on the bottom of my case to potentially keep my GPU cooler but I realised I dont really know if the GPU fans are intakes or outtakes. but I mod the case and changed all the fans. Stick to your original plan. And they put in a 140mm side fan.