What causes motherboard failure

You can only put certain parts on your computer if it has a mainboard. Because of this, some PC fans are afraid to touch them and make little effort to change them. If your motherboard doesn’t work, don’t worry. We’ll help you figure out what’s wrong and then fix it.

When you buy a new computer, this kind of problem can happen, but it is very rare. These include random reboots, not being able to boot, and having a lot of crashes.

Not enough power

Yeah, I think that’s pretty bad. That sounds bad to me, Al. That sounds bad to me, Al. That sounds bad to me, Al. That sounds bad to me, Al.

Each computer comes with the main connector that has 20 to 24 pins. This number depends on the model and the year you bought your computer. Other than that, there is also a four or eight-pin connector hidden in the processor socket.

Many people forget to connect to the other end. Check to see that the two are connected properly. This happened to us in the early days of computer making, so you should make sure they are connected properly. Do this if you aren’t sure whether they fit. Plug them in and then plug them back in again.

Make sure both plugs are fully in place and connected to the correct electrical wiring. Most of the problems that happen when you first put in a new motherboard will be solved by this.

Incorrectly installed components

If parts aren’t put on the motherboard correctly, they can make it not work. The PC may not have passed the POST (the way it checks itself at the start) or may not be on at all. The processor, the video card, and the RAM could be to blame.

A lot of people don’t pay attention to their video cards and RAM because it’s so easy to do. Take a look and make sure they are all the same distance apart in the width of your slot. To be sure, push them hard.

On each end of each RAM memory slot, the motherboard has a lever-shaped lock. When they put the “open” module in the right way, they can insert it into the slot (standing on the main card). It must be stopped. Some of the leeches are “closed” on the inside, and they should be vertical if the memory is not being installed correctly. This is how it should be done.

Putting in a processor is very hard, but it is worth checking if you’re in any doubt. Pins and markings on the chip and motherboard are in the right place. Once it is in, it should be flat on the surface of the socket when it is done. When the heat sink is in place, it should also be very secure.

We have a Guide to Installing Intel and AMD CPUs that can help you with installing or reinstalling the CPU.

A short circuit

Most boards have capacitors and soldering connections that move data and power from one part to the next. A quarter-inch-thick screw separates the mainboard from the case of the computer. This is called a “stand-off.”

These barriers are there because the motherboard can come into contact with other metal parts and short circuits, which can damage the capacitors. This is why a physical examination is so important to figure out what’s wrong.

As long as you are very good with the soldering gun, you should leave the damaged capacitors to the professionals, unless you are very good at it.

It doesn’t matter if a motherboard facing a short circuit can pass the POST test. If it does, it will act erratically, or it will start up and then stop working.

Make sure your motherboard is in the right place. It should not come into contact with the case. Make sure that the spacers that keep it from touching the case are in the right place. Make sure that the non-supporting parts on the main board don’t bend inwards and short out. Stop it now.

Also, make sure that all of the internal wires are properly shielded from the rubber or plastic outside.

Button to turn on the power when you are offline

Connecting the power button on the case to the motherboard is a small, thin cable with two pins on each end. Without this important connection, your computer won’t start. It’s easy to lose, and it’s very important. A button doesn’t turn on the mainboard because the cable that connects it to the mainboard has been cut.

If you bend or move a pin, it’s hard to believe that it can hurt you so much, but a steady and firm solution can solve the problem. The pins can break easily when they are bent, so think twice before you try to straighten them yourself. You might also have to buy new parts, like your own processor, if you do it.

Power button can be hard to connect. The power button connector is usually marked with small symbols like “Pwr +” and “Phwr.” This is different from many other motherboard connectors, which are designed to make it impossible to put them in the wrong way.

Things get even worse because the front power button is part of a group of connections, which makes it easy to connect the power to the pins that control the reset button or hard drive light.

Hardware that doesn’t work with UEFI or BIOS

There are two things that connect your operating system to your computer’s firmware: UEFI and BIOS.

  • There are things that help your computer remember what it is that you have. What to do when it’s turned on for the first time, and how to find hardware problems.
  • To start, you’ll need to reinstall the old hardware that was removed. This will help you figure out what’s wrong with your computer and restart it. Make sure the computer is turned on before you do this. Then, go to the motherboard manufacturer’s website and look for the most recent BIOS or UEFI version. This is what you should do. Then, try to put in your new hardware.


Even though motherboard problems can be hard to fix, they aren’t impossible to deal with. Learning how to use them is an important skill for anyone who makes computers. It’s possible to keep your computer for a decade or more, replacing internal parts as needed. You learn how to do this by replacing the motherboard.

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