What are the common motherboard failures?

Motherboard is the trunk of the computer, can also be said to be a motherboard, the equivalent of a platform core, the main board will be linked together, the small series today to take you together to understand the motherboard common failures and solutions.

What are the common failures of motherboards? Common troubleshooting methods for motherboards

Common failure One: boot no display

Computer boot no display, the first thing to check is the BIOS. The motherboard's BIOS stores important hardware data, while the BIOS is also a relatively vulnerable part of the motherboard, very vulnerable to damage, once the damage will cause the system to be unable to run, such a failure is generally due to the motherboard BIOS is CIH virus damage caused by the general BIOS is destroyed by the virus in the hard drive data will be lost all , so you can detect if the hard disk data is intact to determine if the BIOS is destroyed, if the hard disk data intact, then there are three reasons for the phenomenon of no display:

1, because the motherboard expansion slot or expansion card problems, resulting in plug-in such as a sound card and other expansion card after the motherboard does not respond and does not display.

2, the jumper motherboard in the CMOS set the CPU frequency is not correct, may also cause the failure to display, in this, as long as the CMOS can be resolved. To clear the CMOS jumper is generally near the motherboard lithium battery, its default location is generally 1, 2 short-circuit, as long as the jump to 2, 3 short-circuit a few seconds to solve the problem, for the previous old motherboard if the user can not find the jumper, as long as the battery removed, to boot display into the CMOS settings and then shut down, The battery is also up to the purpose of CMOS discharge.

3, the motherboard does not recognize memory, memory corruption or memory mismatch will also lead to no display failure. Some older motherboards are more critical memory, once plugged in the motherboard unrecognized memory, the motherboard will not boot, and even some motherboards do not give you any fault hint (tweet). Of course, sometimes in order to expand the memory to improve the performance of the system, the result of plugging in different brands, types of memory will also lead to such failures, so in the overhaul, should pay more attention.

For the failure of the motherboard BIOS is broken, you can plug in the ISA graphics to see if there is no display, if there is no boot screen, you can do an automatic Update BIOS floppy disk, re-refresh the BIOS, but some motherboard bios is destroyed, the floppy drive does not work, at this time, you can try to solve with hot-plug method. However, the use of hot plug extraction requires the same BIOS may also cause partial damage to the motherboard components, so a reliable method is to use a writer to write the BIOS update file into the BIOS, you can find the service of the computer to solve the relatively safe.

Common Fault II: CMOS settings cannot be saved

This type of failure is generally due to the motherboard battery voltage is insufficient, this can be replaced, but some motherboard battery replacement also does not solve the problem, there are two possible:

1, motherboard circuit problems, to find professional maintenance;

2, motherboard CMOS jumper problem, sometimes because of the wrong CMOS jumper on the motherboard is set to clear option, or set up as an external battery, so that the CMOS data can not be saved.