It doesn't matter what side of the heatsink the fan is on, as long as the fan is blowing the hot air out the back/top of the case. rev 2021.1.8.38287, The best answers are voted up and rise to the top, Super User works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. The heatsink dissipates the heat produced by the CPU. You can make sure that the system isn't too loud, with the fan only spinning up faster when your PC gets warm. 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. I fix computers on a daily basis. 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. 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. When it pulls the air out of the case it creates suction so all of the vents in the front and sides bring in fresh air evenly and more gently so less dust gets sucked up. Will reversing the direction of the front case fan solve it? There are two types of air flows to cool the heat sink: If the surface to be cooled is small and also has limited air input to its surface used induced cooling. Computer Hardware, Devices and Accessories; Home; Forums Some CPU fans have 2 pins while others have 3 or 4 pins. How many things can a person hold and use at one time? If your PC case has a vent on the bottom for your PSU intake fan, and you’ve installed the PSU with the fan facing downwards, you should take some extra steps to help ensure proper airflow. On the other hand, blowing the air increases its pressure, thus increasing the number of air molecules and their ability to carry away heat energy. On the 2 pictures you linked to, those fans are blowing the air towards the rear of the case. 'Angry' Pence navigates fallout from rift with Trump, Alaska GOP senator calls on Trump to resign, Unusually high amount of cash floating around, Late singer's rep 'appalled' over use of song at rally, Bird on Capitol attack: 'Maybe this needed to happen', Flight attendants: Pro-Trump mob was 'dangerous', These are the rioters who stormed the nation's Capitol, 'Xena' actress slams co-star over conspiracy theory, Erratic Trump has military brass highly concerned, West Virginia lawmaker charged in Capitol riots. Controlling the CPU fan speed in your PC (or all the fans, in fact) is a way to give you more control over your Windows 10 experience. Of course, from my rudimentary understanding of physics, blowing makes more sense. 3 years ago Why can't I just place it at the back of the heatsink exhausting towards the rear? The only time I got any improvement with the fan on the other side pulling air through, was when the same fan was ducted direct to the outside of the case, so the heat from the cpu was direct to the outside via that fan. What species is Adira represented as by the holo in S3E13? ive got mk1 chaser case with rad on top fans on stock fans on bottom i turned around from stock and faced then pushing air through them with 200mm dual fans on top of the case pulling the air through them exhaust the case of hot air running my fx8350 idle at 6c max temp when oc is 36c with this setup. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. i actually mounted one fan pulling and one pushing on a rad and the one pushing didn't do to much. My GLINK USB 2.0 extension cable isn't detecting External Hard Drive, though Pen drive is detected. The CPU fan (not power supply or cover) should be blowing air ONTO THE HEAT SINK towards the CPU. Barrel Adjuster Strategy - What's the best way to use barrel adjusters? This is where the exhaust fan (s) will take over, dragging this warmer air out of the case. What factors promote honey's crystallisation? This will probably be appropriate for you. By changing the direction a fan is mounted, it can act as either an intake or exhaust. 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. Rear fan still <-------Fan2 <----- Heatsink <----- Fan1. 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 … There are other good reasons to flow from front to back, like the hard drives and ram do not get heated by the cpu and gpu. Is the bullet train in China typically cheaper than taking a domestic flight? 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. Is it my fitness level or my single-speed bicycle? What is the earliest queen move in any strong, modern opening? And that does not even take into account the noise made by pump and/or water/air bubbles in a CLC. The fan should always blow upwards towards the top case fan/vent. If not, it isnt a great case for heavy computer builds. While the heatsink also releases heat, the fan is there to assist by blowing the hot air away from the heatsink-fan assembly. Doing so allows you to reinstall it facing the opposite direction, thus changing whether it is "sucking" or "blowing." 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. The fan should face away from the CPU. They're just on the other side of the heatsink "pushing" the air instead of "pulling" it. But for the stock fan for the Ashura heatsink, the arrow points in the direction of the logo. So it depends on your desires. The fan is an intake. 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? Heat rises, so if you blow it downwards, it wont really be removing hot air. Whoever tells you that the fan should be blowing ONTO the heatsink is a fool. From what your saying your flow arrangement isnt to the front, so like you I do not see any reason to send it towards the front, to just fight the flow and eventually head to the back anyway, turbulance has value :-) but exhausting the worst heat most directally out of the case is going to make the whole case cooler. It should be blowing away from the CPU. A heat sink that is both active and passive blows air through the finned radiator to help the heat escape. Can an exiting US president curtail access to Air Force One from the new president? To learn more, see our tips on writing great answers. There are many cooling variations but arguably the most common approach will be to have: Rear Exhaust Fax <--- Heatsink <----- CPU Fan. That air is found outside the case, typically at the front. A CPU fan is NEVER EVER...AND I REPEAT..EVER BLOWING AIR TO THE CPU but TO THE HEAT SINK. The fan should face away from the CPU. That is the reason why the heat sink has a thermal paste underneath it as well. The reason behind this is to BLOW AWAY the heat accumulated inside the heat sink. Removing a CPU cooler with spring-screws: Power down the system and switch off the PSU, disconnect the fan power lead from the CPU fan header on the motherboard. From what I have read about the airflow, the goal is to redirect air towards the rear and the top. There are several options for how a CPU cooler can exhaust heat from the CPU. 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. zero-point energy and the quantum number n of the quantum harmonic oscillator. Making statements based on opinion; back them up with references or personal experience. dangerden also recommends pulling out and they're radiators are very similiar to swiftechs. Tape do I need to tape CPU fan also have good pressurizing,. 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