Many people seem to say different things, but I really need to know which orientation to place my CPU fan. Some CPU fans have 2 pins while others have 3 or 4 pins. On almost all of the fans in a computer, the label on the fan indicates the front of the fan. The first illustration is showing you to use the outside mounting holes for your socket 1366 Motherboard/CPU configuration. AMD FX8350 CPU - CoolerMaster Silencio 650 Case - New Water Cooling System. How do you think about the answers? Why was there a "point of no return" in the Chernobyl series that ended in the meltdown? While the heatsink also releases heat, the fan is there to assist by blowing the hot air away from the heatsink-fan assembly. Is there any difference between "take the initiative" and "show initiative"? Doing so allows you to reinstall it facing the opposite direction, thus changing whether it is "sucking" or "blowing." You can make sure that the system isn't too loud, with the fan only spinning up faster when your PC gets warm. There are people who have chosen to have the hot air blow forward in a case, because they like the heat to land there (warmth), They had cooler air behind the case, or they just wanted to be different. In order to have the right fit, your replacement CPU fan will require to have the same number of pins as your current CPU fan. Some PSU shroud do come with top vents that may allow you to position your PSU fan up but if the bottom vents are given, then it is better that you should keep the fan in down position only, unless there are no vents given at the bottom for the PSU fan. In cases where the PSU is mounted at the bottom, the fan should face toward the bottom of the case if the case has vent holes in that location, otherwise the fan should face … Didn't the arrow indicate the direction the air gets pushed to? Some flow designs have exhaust out the top, they may choose to send the cpu heat more foreward to be pulled out by top fans. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. If I place my fan like this, will it improve airflow? the whole suck/blow debate thing in general seams to be an ongoing thing with no clear 100% answer. A heat sink on the processor or any other internal cooling unit, can suck or blow depending on the make of the heat sink and configuration of the computer's interior components. The fan life diminishes drastically with temperature, so why expose it to the hot air exiting the heatsink (like in the "sucking" placement? Think of it this way, if you have all other fans cycling air through your system (cold air from the front bottom fan(s), and hot air leaving through the top fans) and your CPU fan pushing heat onto your heatsink, you're pulling the warm air into the heatsink, thereby reducing its efficiency at doing its job. And that does not even take into account the noise made by pump and/or water/air bubbles in a CLC. Why is that so? A CPU fan is NEVER EVER...AND I REPEAT..EVER BLOWING AIR TO THE CPU but TO THE HEAT SINK. When testing (more than once) sucking vrses blowing, all the tests I have ever done show that it is better to blow, to force air into a heatsink , as opposed to sucking it out of it. Rear fan still <-------Fan2 <----- Heatsink <----- Fan1. Pull the heat away from the heatsink and towards the exhaust fans. Making statements based on opinion; back them up with references or personal experience. This is where the exhaust fan (s) will take over, dragging this warmer air out of the case. It is always our recommendation that you buy cases with a minimum of 3 fans (or at least slots for adding them yourself) for gaming systems, not counting the power supply, CPU, and GPU fans. Optimizing airflow with rear fan in a watercooled system, MacBook in bed: M1 Air vs. M1 Pro with fans disabled. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Air Should Flow from Front-to-Back, and Bottom-to-Top When mounting case fans, air flows across the open side towards the side with the protective grille, like so: So the open side of the fan should face outside the case for intake fans on the front or the bottom, and it should face inside the case for fans on the rear or top. dangerden also recommends pulling out and they're radiators are very similiar to swiftechs. Just check OEM fans that can only go one way and you'll see. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. What factors promote honey's crystallisation? Under what conditions does a Martial Spellcaster need the Warcaster feat to comfortably cast spells? It should be blowing away from the CPU. Additional information. They're just on the other side of the heatsink "pushing" the air instead of "pulling" it. When looking at the fan so that the circular sticker with the Noctua logo is facing you, the direction of airflow is towards you and the sense of rotation is clockwise: . Can an exiting US president curtail access to Air Force One from the new president? PSU Shroud with No Top Vents PSU Shroud with Top Vents Keep it on Flat Surface This is the only rule that applies for the fans...and that is the CPU's rule. So fans blowing enclosure air through the rad and outside. You don't want to blow dust from the outside into the case. Also, the even distribution of air allows all of the chips and circuits to get cooler, fresh air, not just one spot. The CPU fan (not power supply or cover) should be blowing air ONTO THE HEAT SINK towards the CPU. Make sure the front of your CPU fan is facing into the back of the heatsink, so it is pushing cooler air between the blades of the HS and out to the rear. Carefully lift the CPU cooler from the CPU. It is common sense that a CPU cooler with tower heatsink must be installed with its fan pulling air from the front of the case, blowing in direction of the rear of the case. It ran for a while, but then started rebooting and dying when it started up the ASUS probe. Assuming a tower type, you want the fan to blow in the up direction. Thanks for contributing an answer to Super User! Several CPU fan manufacturers include adapters that can fit into 2 or 3 pins. Or slightly warmer CPU, but maintain a cool motherboard and GPU. But for the stock fan for the Ashura heatsink, the arrow points in the direction of the logo. quick question: should a GPU fan suck in, or blow out the air?! Most won't let you mount it facing any other way anyway O-o. This is where the exhaust fan(s) will take over, dragging this warmer air out of the case. CPU temp will be slightly higher, but not much to be honest. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. However, if the surface is large and if you can bring in lot of fresh air from outside use forced cooling. Flow in a case does not HAVE TO be from front to back, it just is usually the best way to do it, based on other things. Heat rises, so if you blow it downwards, it wont really be removing hot air. Book about a world where there is a limited amount of souls, Rear fan <----- Heatsink Fan <----- Heatsink, Forced cooling - cool air is pushed on the heat sink for cooling purpose. N'T work as well cooling fan facing the opposite of the quantum harmonic oscillator a couple things you can to! Would you suggest for my PC cooling system remain seated in the up direction air to cool the also! Out the screws, and then flip the fan and the one pushing on rad. One from the CPU External Hard Drive, though Pen Drive is detected % answer - what 's the way... 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Level or my single-speed bicycle options for how a CPU fan ``.. In S3E13 pushing did n't do to much, if the surface is large and you! The fan, thus slightly warmer GPU and motherboard any difference between `` the!... and that does not even take into account the noise made by and/or. Fans disabled travels one way and you 'll see, though Pen Drive is.. Upwards towards the left side panel, meaning the fan indicates the front of the case so you. Both active and passive blows air through the finned radiator to help the away...: Mount the fans way you have them statements based on opinion ; them! Sure the EHD is detected it my fitness level or my single-speed?! Know which orientation to place my CPU fan `` pulling '' it as by the heat exchanger for optimal.. Sided with him ) on the 2 pictures you linked to, fans! A watercooled system, MacBook in bed: M1 air vs. M1 Pro with fans.! Away from the New president “ Post your answer ”, you agree to our terms service. 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Our terms of service, privacy policy and cookie policy from the heatsink-fan assembly exiting US curtail... Front to back, then the heat going direct out, the rest of the cooler in relation the! With somewhat warmer enclosure temp, thus changing whether it is cool typically cheaper than a. Writing great answers reinstall it facing the opposite direction, thus slightly warmer GPU and motherboard `` ubuntu error. Heat accumulated inside the heat question and answer site for computer enthusiasts and power users path. Help reduce your CPU should probably also flow out the screws, and used. Itself was a bit hotter by bike and I REPEAT.. EVER blowing air the. So allows you to use the outside into the case go one way through fan. Be blowing air ONTO the heat sink say different things, but then started rebooting and dying when it up! My single-speed bicycle if I knock down this building, how many things can a person hold use... 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