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I would like to share with you the reasons why the computer cannot be turned on. I believe most people do not know much about it, so share this article for your reference. I hope you will gain a lot after reading this article. Let's learn about it together.

1. No response when starting up does not necessarily mean that the motherboard is broken

In general, after most motherboards are connected to power, even if they are not turned on, the lights on the motherboard will be lit. If not, first check whether it is a power connection or a problem with the power supply itself. In particular, the motherboard 24Pin interface and CPU power supply line interface must be firmly plugged in.

The short-connected power supply can make the power supply run without being turned on through the motherboard, which can also detect whether a power supply is running normally. The method is simple, as long as the green port on the 24Pin interface is short connected to any black port. If it doesn't work (the fan doesn't work), it proves to be a power supply problem.

Second, the motherboard lights up but can't turn it on.

There is a situation where the motherboard light is on, indicating that the power supply has output, but it still cannot be started. There are many things that need to be checked, but first of all, there is no post on the motherboard, which may be the key and BIOS problem.

The Icano area of the chassis is located at the front of the roof, which facilitates the operation of the user. The Icano area of the chassis has boot / restart buttons that are connected to the motherboard through a jumper. The jumper pins of the motherboard are difficult for rookies to connect. If the connection is wrong, the mainframe will not be able to boot. You can first check whether the jumper connection is correct. In particular, the power sw line must be connected correctly.

After the jumper is connected, it is still unable to start, you can use tools such as a screwdriver to short-connect the starting pins. If you can start and prove that there may be something wrong with the jumper switch, you can replace it.

BIOS reset can be manually adjusted or directly buckle the battery to achieve. If it doesn't light up, you need to try to buckle the battery directly. Remove the button battery from the motherboard and put it back in 15 seconds to reset the BIOS.

Third, start ticking to check the memory first

Normally, players will hear a "drip" sound, but if it beeps or keeps "ticking." The sound is generally caused by poor contact between the memory bar and the motherboard memory slot. Just rub the gold finger back and forth with an eraser to solve the problem (don't clean it with alcohol). Of course, it is also possible that the memory slot on the motherboard is broken.

Memory problems first check whether the memory is plugged in; generally, after the chassis is moved, the memory may become loose and cause boot failure. In addition, the host may accumulate too much ash to cause memory short circuit, you can first blow the ash near the memory slot, and then wipe the gold finger of the memory bar with an eraser after cleaning it up.

The above is all the contents of this article, "what are the reasons why the computer cannot be turned on?" Thank you for your reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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