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    Home»Windows»How to Connect Case Fans to PSU- Video+ 2 Easy Methods
    Windows

    How to Connect Case Fans to PSU- Video+ 2 Easy Methods

    WashimBy WashimAugust 28, 2021Updated:May 3, 2023No Comments7 Mins Read
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    How to Connect Case Fans to PSU
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    Just bought your case fan or replacing the case fans but don’t know how to connect case fans to PSU? Then congratulations! You have found the right content to resolve your problem with just two simple methods.

    A PSU or Power Supply Unit is one of the computer essentials that converts the alternative current (AC) into direct current (DC) to supply the computer’s internal components. While there is a power supply system running, the internal components will continually heat up, and you will need case fans to cool it down anyway. 

    Do you always need a service center’s help to connect a simple case fan to your PSU? Well, of course not. You can easily do it on your own, no matter how many fans you’re connecting with. So let us dive into the two methods.

    Table Of Contents show
    1 How to Connect Case Fans to PSU
    1.1 Method 1: Connecting Single Case Fan
    1.2 Method 2: Connecting Multiple Case Fans
    2 A Quick Brief on Case Fans
    3 Frequently Asked Questions(FAQS)
    3.1 Does my PSU need a case fan at all?
    3.2 How many case fans should I install in my PSU?
    3.3 If I connect a 3-pin fan into a 4-pin, will it work?
    3.4 What are the possible prices for a suitable case fan?
    4 Final Words
    4.1 You Can Also Read:

    How to Connect Case Fans to PSU

    The number of case fans needed for your PSU depends on the motherboard of your PC. The unit generally comes with 1,2 or 3 case fans. But you will get to decide if you need to add, remove or change the case fans as per the rise of temperature and performance of your device.

    We will suggest you read the entire content thoroughly to avoid misconceptions and follow the methods step by step.

    Method 1: Connecting Single Case Fan

    Before stepping into the steps, just remember a few things. First, the connectors for PSU is known as Molex connector; if your PSU does not have, you might need one. 

    No issue, we’ll be discussing here all that stuff.

    On the contrary, the connector for fans is called 4 Pin PWM. Let’s start the steps now.

    Step-1: Pick the Spot

    The first and foremost step of this method is to figure out where you want to install the fan. 

    Check the part of the power supply unit that generates more heat and picks the nearest spot to it.

    Step-2: Facing the Fan

    The fan front or face part is the suction port, and the rear part is for exhaust. While placing a case fan, always put the face part inside as this part will suck out the heated air of the unit.

    So, identify the fan’s front and rear. The rear part is covered with the casing, and the front part is open.

    Step-3: Join the Fan

    Each case fans have four screw holes on the four edges of the casing. Place the fan to your selected spot and use a manual screwdriver to join the screws.

    Step-4: Connect Cables (Addressable RGB)

    A casing fan has one to two separate cables. One of them possesses 4-pins, and the other has 3. The cable with 3-pins is called an addressable RGB.

    The motherboard contains fan plug connector hubs. Follow the rails on your addressable RGB cable pin and plug it in with the nearest hub of your power supply unit.

    Step-5: Connect Second Cables (Digital RGB)

    The second cable that contains three pins is called a digital RGB. If your case fan does not have a 3-pin digital RGB cable, then skip the step.

    Check the bottom of the motherboard, and you will find more plug connector hubs. Find a 3-pin connector and plug it in. 

    However, if you can’t find suitable plugs to connect, you can get any 4-pin Molex adaptor like the Modtek 4-pin adapter cable connecting 4 3-pin fans. Usually, you can find them coming with your case fans.

    This type of adapter cable can ease your tasks. 

    Step-6: Place Cable Wires Out of PSU Case

    After connecting the case fan, you will find many wires hanging around the internal component of your power supply unit. This step is to avoid the mess. 

    Figure out the nearest way out of the power supply unit casing and pull the wires out through it. If you are interested to make it more specific, you can try a mark on each cable wire.

    Method 2: Connecting Multiple Case Fans

    When you aim at connecting multiple case fans, the one vital component that you are going to need is a fan hub. A fan hub mainly contains ten case fan connecting ports. In this portion, we will showcase how to connect multiple case fans to your PSU in just 3 steps.

    Step-1: Motherboard to Fan Hub

    Connect one end of the cable to any fans connecting point on your motherboard and the other end to the fan hub.

    Step-2: Fan Hub to PSU

    There is a connection point of the fan hub right on the opposite end where the cable from the motherboard is connected. Join the connection edge with the “L” shape connector out of the power supply unit.

    Tips: If your motherboard does not has the 8 pin connector option while your fan needs one,  use a 4 pin to 8 pin connector cable like the StarTech 4 Pin to 8 Pin EPS Power Adapter which will solve half your issue.

    And if you luckily have one Corsair power supply, you can get that cable adapter right with the PSU. So that’s another benefit of having the Corsair PSUs.

    Step-3: Connection with the Red Port

    On the one end of the fan hub, there is a red port. That must be connected with at least one fan. 

    The fan hub will not work while the red port is idle. So, first, plug in a fan with the red port, then fill up the rest of the ports on the fan hub.

    However, remember, when you connect the case fans directly with your PSU, the fans run at max speed, and you might not change the rpm.

    A Quick Brief on Case Fans

    Now, as you made up to this far, in this part, we will suggest to you some case fans that will best suit your power supply unit.

    Arctic F12 and Scythe grand flex are best-case fans for a short budget in the stable outlooks.

    If you consider some aesthetics, then Corsair, Thermaltake, or Cooler Master will be a better suit.

    These will offer you high-quality speed control with an aesthetic vibe to the CPU as well.

    Frequently Asked Questions(FAQS)

    Does my PSU need a case fan at all?

    It is said that a case fan is better than no fan. Because the power supply unit always runs hot, and the excessive heat can damage your device’s internal components.

    How many case fans should I install in my PSU?

    It depends on your motherboard and the performance of your PC. Based on the number of fans and connector hubs your motherboard is compatible with, you can connect case fans. Or, you can use an additional fan hub to connect more.

    If I connect a 3-pin fan into a 4-pin, will it work?

    The fan will spin, of course. The three-pin cable is basically for the speed control, and the four-pin is for the fan spin. So plugging in a three-pin cable into a four-pin can change the fan speed control, but the fan will still spin.

    What are the possible prices for a suitable case fan?

    The prices can range from $10 up to $600+ as per the performance and aesthetics you are looking for.

    Final Words

    Have you gone through the entire content? If so, then get started with your power supply unit. All you need to do is to follow the six simple steps detailed above. 

    For your assurance, all the methods mentioned in this article are authentic and suggested by experts worldwide. You can go through the websites where you grabbed your PSU and confirm before following the steps.

    This context aims at providing you the fastest and simplest solution to your everyday tech struggles and makes you use your gadget hassle-free.

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    Can I plug my case fans into my motherboard Can you connect fans to PSU Do you connect case fans to motherboard or power supply
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