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This article is to share with you about what will happen if there is something wrong with the motherboard. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Motherboard problems will appear: 1, boot no display; 2, CMOS settings can not be saved; 3, install the motherboard driver after a panic or CD-ROM drive reading speed slows down; 4, the mouse is not available; 5, the computer frequently crashes, CMOS settings will also appear crash; 6, motherboard COM port or parallel port, IDE port failure.

The operating environment of this tutorial: windows10 system, Dell G3 computer.

The motherboard is the key component of the whole computer and plays a vital role in the computer. If the motherboard fails, it will affect the work of the whole PC system. Next, let's take a look at the most common faults in the use of the motherboard.

Fault 1: no display when booting

There is no display on the computer, the first thing we need to check is BIOS. Important hardware data is stored in the BIOS of the motherboard, and BIOS is also a fragile part of the motherboard, which is extremely vulnerable to damage. Once damaged, the system will not be able to run. This kind of failure is generally caused by the destruction of the motherboard BIOS by the CIH virus. (of course, we do not rule out the failure of the motherboard itself and the system can not run.) . Generally speaking, after the BIOS is destroyed by the virus, all the data in the hard disk will be lost, so we can determine whether the BIOS is damaged by checking whether the hard disk data is intact. If the hard disk data is intact, there are three other reasons why the boot will not display:

1. Because there is a problem with the motherboard expansion slot or expansion card, the motherboard does not respond and does not display after plugging in an expansion card such as a sound card.

two。 The CPU frequency set by the jumper-free motherboard in CMOS is incorrect, which may also cause failure of display. As long as CMOS is cleared, it can be solved. The jumper to clear CMOS is generally near the lithium battery on the motherboard, and its default position is generally 1 or 2 short circuit, as long as it is changed to 2 or 3 short circuit for a few seconds, the problem can be solved. For the old motherboard, if the user can not find the jumper, as long as the battery is removed, wait for the boot display to enter the CMOS setting and then shut down, and the battery will be on to achieve the purpose of CMOS discharge.

3. Failure of the motherboard to recognize memory, memory corruption, or memory mismatch can also lead to boot failure without display. Some old motherboards are fussy about memory, once plugged in memory that the motherboard cannot recognize, the motherboard will not be able to start, and even some motherboards will not give you any fault hints (tweets). Of course, sometimes in order to expand memory to improve system performance, inserting different brands and types of memory will also lead to this kind of failure, so we should pay more attention to it during maintenance.

For the failure of BIOS damage on the motherboard, we can plug in the ISA graphics card to see if it is displayed (if prompted, you can follow the prompted steps.) If there is no boot screen, you can make a floppy disk that automatically updates BIOS and refresh BIOS, but after some motherboard BIOS is destroyed, the floppy drive does not work at all. At this time, you can try to use hot plug method to solve it (I have tried, as long as the BIOS is the same, it can be successfully burned in the motherboard of the same level.) . However, the use of hot plug in addition to the need for the same BIOS may also lead to damage to some components of the motherboard, so the reliable way is to write the BIOS update file into the BIOS (it is safer to find a computer provider with this service).

Failure 2: CMOS settings cannot be saved

This kind of failure is generally caused by insufficient battery voltage on the motherboard, which can be replaced, but some motherboard batteries cannot solve the problem after replacement, so there are two possibilities:

1. There is a problem with the motherboard circuit, which needs to be repaired by a professional.

two。 Motherboard CMOS jumper problem, sometimes because the motherboard CMOS jumper is incorrectly set to clear option, or set to external battery, so that CMOS data can not be saved.

Fault 3: panic or slow reading speed of CD-ROM drive after installing motherboard driver under Windows

This phenomenon sometimes occurs on some miscellaneous motherboards. After the motherboard driver has been installed, the restart computer cannot enter the Windows98 desktop in normal mode, and the driver cannot be uninstalled under Windows98. If this happens, it is recommended to find the latest driver to reinstall, the problem can generally be solved, if not, you can only reinstall the system.

Fault 4: mouse is not available when installing Windows or starting Windows

The software cause of this kind of failure is usually caused by incorrect CMOS settings. There is a modem useIRQ project in the power management bar set by CMOS, whose options are 3, 4, 5. And NA respectively. Generally, its default option is 3, and you can set it to an interrupt item other than 3.

Fault 5: the computer crashes frequently, and the computer also crashes when setting up CMOS.

When a crash occurs in CMOS, there is generally a problem with the motherboard or CPU. If the press method cannot solve the problem, then only replace the motherboard or CPU.

This kind of fault is generally caused by the problem of the motherboard Cache or the poor heat dissipation of the motherboard design. The author has found the phenomenon that the motherboard heat dissipation is not good enough on the 815EP motherboard. Touch the motherboard components around the CPU after the crash and find that its temperature is very hot. After replacing the high-power fan, the crash fault can be solved. If there is a problem with Cache, we can enter the CMOS setting and disable Cache to solve the problem smoothly. Of course, the speed will certainly be affected after Cache is prohibited.

Fault 6: motherboard COM port or parallel port, IDE port failure

This kind of failure is generally caused by the user's live power plug and unplug related hardware, at this time, the user can use a multi-function card instead, but before replacing it, the COM port and parallel port on the motherboard must be prohibited (some motherboards even IDE ports must be prohibited before normal use).

Thank you for reading! This is the end of this article on "what will happen if there is something wrong with the motherboard". I hope the above content can be of some help to you, so that you can learn more knowledge. If you think the article is good, you can share it out for more people to see!

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