【 Weak current college 】 computer motherboard failure examples and solutions

A computer motherboard failure: post not show

Nothing displayed on the computer power on, first of all we want to check is the BIOS. Motherboard's BIOS stored an important hardware data while it is the motherboard BIOS in fragile, vulnerable to failure, once the damage it can cause a system not to run, such faults are generally because the motherboard BIOS by CIH virus damage caused (of course, does not exclude the motherboard itself failure causes the system to run. ）。 General BIOS be viruses in the data after the hard disk will be lost, so we can detect hard disk data is intact to determine if BIOS is corrupted, if your hard disk data intact, so there are three reasons why post the phenomenon:

1. because the motherboard expansion slot or the expansion-card problems, causes, such as audio plug in expansion cards motherboard not responding without displays.

2. no jumper boards in the CMOS settings of the wrong CPU frequency, but also may cause malfunction, do not appear on this, as long as the clear CMOS can be addressed. Clear CMOS jumper General lithium battery on the motherboard, its default location in the vicinity of 1, 2, short circuit, just change it to jump to 2, 3 short circuit for a few seconds to solve the problem, for previous old motherboard if users can't find the jumper, so long as the battery down until the post is displayed to enter the CMOS Setup and then shutdown, will also appear on the battery reaches the CMOS discharge.

3. the Board does not recognize memory, memory corruption or memory mismatch will cause no trouble-free display. Some old motherboard comparison critical memory, once plugged into the motherboard does not recognize memory, motherboard fails to boot, even some motherboards do not give you any hints (tweets). Of course, sometimes for expanded memory to improve system performance, results on different brands and types of memory also leads to the emergence of such failure, maintenance, should paymore attention.

For the motherboard BIOS corrupted fails, we can plug in ISA card if there is no display (if prompted, follow the prompts to steps. ), If there is no splash screen, you can own a piece of automatically updating the BIOS of the floppy disk, Flash the BIOS, but some of the motherboard BIOS is corrupted, the floppy drive is not working, at this point, you can try to use hotplug method to solve them (I have tried, as long as the same BIOS, at the same level of the motherboard can be successfully burned. ）。 But using hot-plug in addition to the same BIOS, may cause some damage to the motherboard, so reliable component is used to write code that writes to the BIOS update file BIOS inside (you can find this service of computer business solution is more secure).

Computer motherboard failure II: CMOS settings not saved

Such failures are typically lack the motherboard battery voltage, can be replaced, but some of the motherboard battery replacement also does not resolve the problem, you have two possibilities:

1. the Board circuit problems, for which you want to find professional maintenance;

2. motherboard CMOS jumper problem, sometimes because of an error in the motherboard CMOS jumpers to clear the option, or set as external battery, making CMOS data cannot be saved.

Computer motherboard failure: Windows install motherboard driver after the panic or optical drive read up slower.

In some particular brand of motherboard can sometimes get this kind of phenomenon, will the motherboard drivers after installation, restart the computer in normal mode to enter the Windows98 desktops, and the driver for Windows98 cannot be uninstalled. If this occurs, it is recommended that you find the latest driver reinstall problem generally able to address, if it is not, you can only reinstall the system.

Computer motherboard failure 4: install Windows or start Windows when the mouse is not available

Against such failures of software causes are typically caused by an error CMOS settings. In the CMOS settings for power management bar a modemuseIRQ project, his option for 3, 4, 5 ..., NA, generally it's the default option for 3, set it to 3 break keys to outside.

Computer motherboard failure 5: computer frequently panic, CMOS settings will panic phenomenon


In CMOS in panic phenomenon, generally there is a problem with the motherboard or CPU, if pressed method does not resolve the failures, that will only replace the motherboard or CPU.

Against such failures are typically there is a problem with the Cache system board or motherboard design thermal badness,. For Cache problem, we can enter the CMOS Setup and disable the Cache can successfully resolve the problem, of course, disable Cache will be faster.

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

Against such failures are typically user-created plug-related hardware, users can use multi-function card instead, but instead must be preceded by a prohibition of the motherboard with the COM port and parallel port (a motherboard with IDE ports are prohibited to work properly).