How To Connect Power Supply To Motherboard?

If this is the very first time that you are building your PC, installing the PSU into your internal desktop components can be a risky affair! A Power Supply Unit, commonly abbreviated as the PSU is basically the hardware that is responsible for converting and distributing the electric supply into the internal supply of your PC. However, knowing the skill to connect your motherboard or other components to the system is a skill that you ought to master!

Things that you need to prepare for connecting the power supply to the motherboard

You must have the below-mentioned tools handy with you for connecting the power supply to the motherboard. Here are the tools that you need to have:

1. Screwdriver

At first, you will need to have a screwdriver so as to lock the PSU into the case appropriately. When we recommend you to have a screwdriver, we mean a whole set of screwdrivers, coming in various sizes. This will help you get the flexibility of using the one that you need, based on your requirement.

2. Proper Working Area

You will need to have a clean, and spacious area where you will be able to conduct the installation. If you are doing it in a very cramped space, chances are that it might lead to potential damage and accidents.

3. Zip Ties

A lot of pro PC builders are seen to use velcro cables or zip ties at the time of installing a PSU. This will further give a clarification on cable management, thereby tying the wires appropriately inside the case.

4. Anti-static Wristband

Whether you are working on a metal surface or is connecting the PSU to the outlet attached to the motherboard, this anti-static wristband is going to be of great help to you. Although it is not always compulsory to have this one, if you are really concerned about getting in touch with the static charges to that of your skin, wearing this would be of great help to you.

Step-By-Step Guide To Connect Power Supply To Motherboard

Now that you have already implemented all the changes, it’s time for you to connect the power supply to the motherboard of your PC. Although the power supply connectors are already designed in a way that it would connect the system in just one way, and thus, avoid all sorts of confusion to connect it from either of the ways. In case you find that the components are not going right, chances are that you might be fitting them wrong. Therefore, check it appropriately and sort out the issue as the earliest!

1. Lock the Power Supply

Place the power supply on the top back segment of your PC, and ensure that it is fitting absolutely right to the PSU of your system. Once done, make sure that you are screwing it into its dedicated place.

2. Connect 20(+4)-Pin Power Cable

The 20(+4)-Pin Power Cable is regarded as the most crucial power supply that connects the whole electrical source to the system. Figuring out this cable is not a tough job as you are going to have 4 additional pins that are disconnected from your 20-pin. In case you have a power supply with 20 pins while the motherboard comes with a 24-pin connector, you need to replace it with the PSU which would match the connector slots. If you hear a ‘click’ sound on connecting the 20-pin PSU connector, you can be assured of the fact that you finally got it at the right slot.

3. Connecting the 4/8-Pin Motherboard/CPU Cable

This comes with 2 sets of 4-pin connectors, while there are some with 8-pin CPU connectors featured on the motherboard. In case you have a 4-pin header on your motherboard, there is no need to find another slot. A single 4-pin connector will be enough to start the operation. Also, most systems today come with ATX_12V or CPU_PWR1 labels which shall enable you to identify the port even more easily.

How will you connect the remaining cables to your motherboard?

All the components of your build should have an established connection to make the whole PC functional. Follow the steps as stated below:

1. Establish a connection for the disk drives

Most of the PSUs you see today come with three SATA power connections that will match the three drives, namely, the hard disk drive, optical drive, and solid-state drive. Put the connectors from the PSU to the respective drives and in case you find that it is not fitting, chances are that you might have put it into the wrong location. In case your system is old, you will have 4 pin connectors, and then you might need to have this Molex-to-SATA adapter. Remember that the SATA cables generally do not come with a locking mechanism, and thus, you will need to insert them correctly to avoid getting a loose connection.

2. Connect the graphics card

If you have a low-power graphics card or one that has turned old, you will not need a separate power cable. On the contrary, since these recently released graphics cards are known for delivering high performance, they are required to connect to the PSU. In case your GPU has an intended slot, it will simultaneously have a 6 or 8-pin connector too.

3. Connect the AIO cooler

Most of today’s gaming desktops have this AIO or All In One CPU liquid cooler. It gets the power from the PSU through the SATA power cable.

Some important cable management tips while connecting power supply to motherboard

You need to check that you are lining up the cables correctly while installing the PSU on your desktop. You need to take care that your computer cables or wires should be neat and tidy. Not just that lying wires will have accumulated dust and dirt on them, but they may also lead to heat syncs and develop other complications too.

If you are not being able to manage messy wires, it is always a great idea to go for a PC case that will help you manage your PC’s internal wires even more efficiently. The best thing that you can probably do is to ensure that you aren’t having the wires bundled up somewhere, that you need to detangle them all over again prior to the installation.

In the case of a traditional power supply, the wires are attached permanently to the PSU while a modular supply exhibits the scope of adding and removing the cables based on your requirement which is great!


Cable management and power supply installation are the two most integral parts of any system building procedure. Make sure that you are well aware of the tips and tricks to ensure everything is in place.

Similar Posts

Leave a Reply

Your email address will not be published.