Which statement is true regarding the installation of the motherboard and connecting power?

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If you are trying to build a computer on your own, there is all the information floating around you. And we know how it confuses a first-timer in the job. A particular confusion is which statement is true regarding the installation of the motherboard and connecting power.

The power connection is a very important part of the motherboard installation process. All the components must be connected properly to their respective slots and get enough supply of power. A true statement regarding this is that a 4-pin power cord supplies additional power to the processor. 

There are a lot of popular myths about this topic. You cannot listen to all of those and succeed in your computer-building process. A myth like hard drives has three connections for cables. We will separate the facts and myths regarding this topic for you. If you are building a PC, stick to the end.

Which statement is true regarding the installation of the motherboard and connecting power? – Brief Discussion

Not everything you hear about the motherboard installation process is factually correct. Some are complete myths; some have elements of truth in them and very few are actually correct. Let’s learn what is true regarding the motherboard installation and connecting power.

A 4-pin power cord supplies supplemental power to the processor

An additional support

This is a correct statement regarding the motherboard installation and connecting power. The key point in this statement is the word supplemental. It means this 4-pin power cord is only needed for additional support. If you need additional stability, this is the correct way to do that. 

It is not always needed

You don’t need a 4-pin power connector always in your system. It is for special situations like when you need extra stability in the system for overlocking and so on. If you don’t push your CPU too hard on any occasion, this 4-pin is not mandatory for your system. If you are a regular user, feel free to ignore this pin. 

Boards that are designed to support multiple PCIe video cards have additional power connectors for power-hungry video cards

Power-hungry video cards

Graphics cards or video cards are quite power-demanding. Many graphics cards will be satisfied with the power supplied by a PCIeX16 slot. This slot supplies 75 watts of power. But lots of other graphics cards or video cards need more power supply. Then you will need other types of connectors. 

Again, sometimes you need to install more than one graphics card in your system. Then obviously you are going to need more power connectors. And some motherboards actually come with these additional connectors. They support multiple graphics cards and have additional connectors to supply enough power to all of them.

Boards with additional power connectors

In the case of supplying power to wattage-hungry graphics cards, you’ll need extra components. This is also applicable when you have to install multiple graphics cards. In this way, the cost will be increased a lot. To solve this problem and reduce the cost, you need to go for special motherboards. There are motherboards available in the market that host all the additional power connectors on a single board.

Like, the ASUS B2560 Mining Expert is an example. You can in theory connect 19 graphics cards to this motherboard. And to solve the problem of additional power supply ASUS has put an additional 24-pin connector into the board itself. 

Some myths about the installation of the motherboard and connecting power:

Some myths about the installation of the motherboard and connecting power

Hard drives have three connections for cables

This is a popular myth regarding motherboard installation or to be more precise hard drive installation. The myth includes: hard drives have three connections for cables for individual purposes. And this is completely false.

All the desktop hard drives only have two connections for cable. It can be ATA or in most cases SATA.

One of these connections is for the power cable and the other one is for the data cable. So, no, there are no three connections in a hard drive. 

The 4-pin auxiliary power connector is a must

This is a popular statement you will hear about the motherboard installation and connecting power. But this is a completely false statement, in other words, a myth. You do not need a 4-pin power connector as a must while building a PC. 

But it is true as we have explained before that you in some cases will need this 4-pin connector. You may wish to push your CPU and motherboard to their limits. In this circumstance, you need some extra stability in the power supply. That’s when you need a 4-pin power connector.

You can work inside the case immediately after you unplug the computer

This is a popular myth and shouldn’t be followed. The reason is obvious, you might think there is no harm after unplugging the computer. But there can be. Because of static electricity, there might be huge troubles. 

You don’t start working inside the case right after you’ve unplugged the computer. Before doing that make sure to unplug all the external connections. Keep no jewelry like bracelets or watches on yourself. And to be safe from static electricity make sure you are grounded. You can use a pair of sneakers for that.

Here we added a video that will help you gathering more knowledge about motherboard and power connection:


Some misconceptions regarding the topic should be cleared out by now. You should be able to tell which statement is true regarding the installation of the motherboard and connecting power. The statements that are not factually correct we pointed out as myths for you. Stick to the facts only.

We understand the fear one feels when trying to build a PC for the first time. It is very natural. All the misinformation out there makes the process a lot harder than it should be. The issue of connecting power is rather important. Because of any misconnection, the connected component can be damaged.

So, our advice to you is to believe a statement only after you have done your research on that. This discussion was an endeavor to make your research a little easier. 

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Gary Scott

Hi There, I am Gary Scott, a Computer Engineer, and owner of this website. My friend and I created this website to share our knowledge, expertise, and experience with our fellow Computer community and pc enthusiast. I am a member of the Association for Computing Machinery (ACM) and the Institute of Electrical and Electronics Engineers (IEEE). I have been writing for Motherboard, CPU, GPU, RAM, Power Supply, Intel/AMD comparisons, CPU/GPU benchmarking, Gaming performance, Xbox, Play Station, and How to build your own PC. I will be regularly updating this website with new resources, If you have any questions or comments, please feel free to contact me.

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