Motherboard Not Working and System Giving Alarms - Troubleshooting

The cause of this failure often has below aspects:

Memory alerts

Memory alerts are quite common: chassis has sound like "tick, tick, tick..." on boot.

If it only happens occasionally, you can simply fix it by opening the box, taking off the memory bank and reinserting it. But keep in mind to pull up the power line of the computer when drawing and plugging the memory bank in case the memory would be burned accidentally.

If this occurs frequently, you should look over the issue carefully. In general, it is the tinpot memory bank, golden finger or the memory slot leading to poor contact. You can firstly wipe the golden finger of your memory bank with an eraser, and then reinsert the bank to its slot. If this method does not work, and there are gaps in the two sides of the golden finger slot, you can try to fill the gaps with some hot melt adhesive so as to avoid continued oxidation of the golden finger surface, but the adhesive would make the memory bank difficult to be pulled out.

Video card alarms

If the video card alarms, it mostly because the insert is loose with its slot or the display card is mangled, and a bulk of motherboards would accompany with one long and two short beeps.

First, you need to open the box and reinsert the graphics card. If it still alarms, probably the video card chips are broken, so you have to repair the card or just buy a new one. For motherboards with an audio alert feature, you should distinguish the prompts carefully and solve the problem. Besides, you should scrutinize the AGP slots, if there are some small items in the slots, you need to take them out, or else the video card can not be put in place.

In addition, the incompatibility between video card and motherboard also would give rise to this problem: sometimes the monitor light is on normally, but at times you would hear one "tick" to pass the POST (Power-on self test) process, but a black screen shows up later, and the monitor's power light is in green. Insert this card into another motherboard, it works regularly. In this case, you need to change the video card.

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Motherboard USB Ports Not Working - Troubleshooting

Motherboard USB ports are capable of hot plug, and they can offer electrical source for peripheral equipments that connect to them. If your motherboard USB ports are not working properly, the following failures may occur:

One, you can find that the movable device and normally set up its driver in Windows 98, but right-click My Computer, select Properties and choose Hardware bar, click Device Manager to enter the Device Manager dialog box, double-click Sound, video and game controllers to see an extended list, you will find an exclamation mark beside this device. Probably the USB driver is the culprit, you need to unload your original driver and reinstall a complete and compatible one to fix this problem. To unload and reinstall a compatible driver, you can download a very user-friendly software tool named Driver Update Tool to help you perform this process automatically!

Two, your large-capacity movable hard disk doesn't work in these ports, only thumb drive and MP3 etc can work. The issue is mainly due to the voltage provided by the USB is too low while large-capacity USB disk requires relatively high voltage. Therefore you need to connect your computer to an external power supply.

Three, you can use your USB disk in the rear port but not in the front port. Because the front USB port is connected by an extension line, obviously its pressure is much lower than that of the rear one that built-in the motherboard, you can consider adding this front port a separate power equipment.

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Troubleshooting Motherboard Problems - System Unstable

Frequent crashes, restart and blue screen attack your system every now and then; you exhaust your minds and spend a whole day repairing the software problems, however, system gets slight improvement. You are bogged down and at a loss what to do?

Sometimes this irritating impediment is merely caused by a poor heat dissipation of your hardware.

Above all, you'll need to check if it is too hot in the southbridge and the northbridge chips, if the problem is located, you need to replace the cooling fins.

The next, examine if the fan's fixed clamps are cracking, which would result in bad CPU heat dissipation and induce computer crashes. Generally, I do not recommend replacing the CPU socket, because manual welding will leave hidden troubles. The radiator of P4 CPU fan joint with the motherboard directly, but that of SOCKET370 CPU is fixed to the motherboard through a CPU socket, be careful if its spring strip too tight when uninstalling it, otherwise the plastic clamps would be apart so that you can not fix your CPU fan.

The bottleneck would also turn up when some obscure capacitance or the power system of motherboard is mingled or poor contacted. Besides, the damage in power switch or RESET key also can give rise to the problem. Today's guises of boxes are becoming more and more beautiful and user-friendly, but the quality of some of their switches, indicator lamps, headphone jacks and USB ports and so on should be improved. If the system shut down a few seconds after startup, you should open the chassis and check whether the power switch can not reset after pressing down. If the RESET key can not spring back itself, the computer will have no response when powering on, because it still stays in power off, and then the power light and the hard disk light will not shine and the CPU fan will not move.

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Troubleshooting Five Common Motherboard Problems

Problem 1 New CM-OS (Complementary Metal Oxide Semiconductor) settings can not be saved.

It is often owing to the motherboard battery is under voltage; you need to change the battery. If the voltage is still too low, it may have two possibilities.

One, the motherboard circuit goes on the fritz, and you'd better take it to the pro.

Second, the problem is in the motherboard CM-OS jumper, and sometimes you have cleaned CM-OS by mistake or set it as using the external battery, so it can not save the new CM-OS data.

Problem 2 Computer crashes or CD-ROM reading slows down after setting up motherboard drivers.

It usually happens in some inferior motherboards: when you finish installing your motherboard drivers and restart the machine, you can not enter the Windows 98 interface in the normal mode, furthermore, the drivers can not be unloaded. For this, you'd better find out the latest motherboard driver and install it, if still failed you have to reinstall your operating system.

Problem 3 Mouse is unavailable when installing or booting up your Windows system.

Its cause in software is generally the incorrect CM-OS settings. In the Power Management of the CM-OS, there is an item called modem use interrupt request, which is commonly default as 3, and you can change to choose one of other options except 3.

Problem 4 Computer crashes when setting the CM-OS

The source of this tiresome ordeal usually hides in the CPU or the motherboard Cache, sometimes maybe the poor heat dissipation in the motherboard gives rise to such crashes. For the Cache problem, you can fix it by disabling the Cache in the CM-OS, but certainly that would affect your Internet speed. If not the Cache problem, probably you have to replace your CPU or motherboard.

Problem 5 Motherboard COM port, Line Print Terminal port or Integrated Drive Electronics port doesn't work properly.

This usually happens when you hot plug the relevant hardware, firstly you need to disable the COM port, the Line Print Terminal port (sometimes you even need to disable the Integrated Drive Electronics port) that built-in the motherboard, and then use a multifunction card instead.

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PC Computer Motherboard Troubleshooting

Motherboard is a key component of the computer, plays a vital role in the the computer. If the board have problems and it will affect the entire PC computer system work. Here we take a look at the most common motherboard faults which during we use our computers.

Fault 1: no show boot

Computer boots no display, we need to check the BIOS. Motherboard BIOS store important data of the hardware, while BIOS is the more vulnerable part of the motherboard, easily be damaged, if damaged will cause the system to not run. This failure is usually because the motherboard BIOS damaged by CIH virus (of course not rule out motherboard failure resulting system can not run itself).In general, after the virus destroyed BIOS hard drive data will be lost. So we can detect the hard disk data to determine whether the good BIOS is damaged. If the hard disk data intact, so there are three reasons why no show boot phenomenon:

1. Because the motherboard has expansion slot or expansion card problems, Board did not respond to display when plug in expansion card, such as sound cards, etc.

2. the CPU frequency settings in the CMOS at motherboard Free wire jumper does not right, may also lead to no-show fault. In this regard, fault can be resolved as long as the clear CMOS. Clear CMOS jumper is in the vicinity of the Main Board of the lithium battery. The default location is usually 1,2 short, just change it to 2,3 short jump, a few seconds you can solve the problem. If users can not find the jumper of previous old board, just remove the battery, enter the CMOS settings to be displayed and boot off, then install the battery also reached the CMOS battery discharge purposes.

3. Motherboard does not recognize the memory, memory corruption or memory does not match will result in no show boot failure. Some of the old board more selective memory, Once plugged in the memory that the motherboard does not recognize, motherboard will not start, and even some motherboards do not give you any fault tips (tweet). Sometimes of course, to expand the memory to improve system performance, plugging different brands, types of memory can also cause such a failure occurs, so maintenance should pay more attention.

When the motherboard BIOS is damaged, we can plug in ISA card to see whether the display (if prompted, can suggest these steps.), If there is no boot screen, you can make a floppy disk automatically update your BIOS, refresh BIOS, but some motherboard BIOS is damaged, the floppy drive simply does not work, then, try to use hot-plug method to solve(I have tried, as long as the same BIOS, the motherboard in the same class can be successful write). But the use of hot-plug addition to need the same BIOS may damage some devices of the board, so a reliable method is to use a write code device to write the BIOS update file inside the BIOS.

Fault 2: CMOS settings can not be saved

Such failures are generally due to insufficient battery voltage of motherboard, which can be replaced to solve the problem, but some motherboards can not solve the same problem after changing the battery, then there are two possibilities:

1. Motherboard circuit problems, which should look for professional service;

2. Motherboard CMOS jumper problem, Sometimes because of incorrectly set the CMOS jumper on the motherboard clear option, or set to an external battery, making CMOS data can not be saved.

Fault 3: In Windows, after installing the motherboard CD-ROM driver, cause the phenomenon of crash or slow down read the disks.

In some no-name motherboard can sometimes be such a phenomenon. After installing the motherboard drivers, restart the computer can not enter the Windows 98 desktop, and that the driver under Windows 98 can not be uninstalled. If this occurs, it is recommended to re-find the latest drivers and installed, the problem can be solved generally, if it is not, can only re-install the system..

Fault 4: When installing Windows, or start the Windows mouse is not available

Reason for this failure of the software is generally caused due CMOS settings wrong. Power management settings in the CMOS field has a modem use IRQ project, his options were 3,4,5..., NA, generally it's the default option is 3, set it to 3 items can break away.

Fault 5: Frequent computer crashes, freezes occur during the CMOS settings.

Phenomenon occurred in crashes in the CMOS, usually the motherboard or CPU problem, should the failure by the following method does not resolve, it can only replace the motherboard or CPU.

This failure was due to board Cache general problems or bad motherboard design heat, I had already found because of cooling is not good enough to result in the failure phenomenon in the 815EP motherboard. After the Death Touch CPU motherboard components around, and found that the temperature is very hot. After replacing the high-power fans, crash failures can be resolved. Cache problems for failure, we can enter the CMOS settings, you can be successful after the Cache ban, of course, Cache ban will definitely affect the rate.

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

This failure is usually due to user hot plug related hardware. At this time user can use the multipurpose card to replace. However before replace must be prohibited the COM port and the parallel port on the motherboard (some motherboards with IDE port to be banned for proper use).

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