【 Weak current College 】 teach you step by step maintenance computer hardware failure

As all computer application level continues to improve, there are more and more people join the DIYer's troops, do-it-yourself Assembly of a computer is not difficult. But in the event of computer hardware failure, many beginners often feel helpless, and can't figure out the cause of the failure. The author is on the exclusion of computer hardware failure process summarizes some experience, haematopathology and friends sharing.

Reason why cause hardware failure

1. the quality of the hardware itself. Rough production craft, the poor quality of production materials, non-standard sizes, etc. are all factors that caused failure of hide. Which often trigger plate card component solder joints of soldered and welded, the docking between bad connection wires short circuit breakers, etc.

2. human factors. Operators use habits and application of standards should not be underestimated, for example plug devices, devices of docking mode between errors, incorrect BIOS parameter settings may cause hardware failure.

3. use of environmental impact. The environment here can include temperature, humidity, dust, electromagnetic interference, power quality, etc. Every aspect of the impact is severe, such as excessive ambient temperature no doubt can seriously impact the performance of the device, and so on.

4. other effects. Due to the equipment of normal wear and aging is often thrown hardware hardware failure.

Shouldnt maintenance hardware troubleshooting steps

Now we have a hardware failure occurs because there is an overview of how you should repair the fault? in general we should observe the following principles:

1. first software hardware

Computer fails, be sure to exclude software reasons (such as the system registry corruption, improper BIOS parameter settings, hard drive master boot sector damage, etc.) then consider hardware reasons, it is easy to make detours.

2. after the host first peripherals

Since the causes of failures caused by peripherals are often easier to identify and exclude, you can first check for an error under the system keyboard, mouse, monitor, printer and other external devices a variety of lines and their own work situation. In the exclude peripheral reasons, to consider the host.

3. first power supply part

As the computer's power source power supply role is critical. Power, output voltage and current is not working properly, will cause a variety of failures. Therefore, you should exclude the power problems first and then consider other parts.

4. briefly after complex

Current computer hardware products and not as we imagine so fragile and easily damaged. Thus experiences a hardware failure, should be the simplest reason began to check. As the various cables connected properly, the existence of various card bad contact. After the inspection and failure persists, you may consider part of circuit parts or machinery parts there are complex.

The remedy to overhaul the hardware failures

1. software troubleshooting

Because the software settings causes are common hardware does not work, then we can take methods are:

Restore the BIOS parameters to the default settings (powered by [Del] key to enter BIOS Setup window → select "LoadOptimizedDefaults" Entry → enter, then press [Y] key to confirm → save settings to exit the);

Restore registry (power on and press [F8] key → start menu, select "start" Commandpromptonly to pure DOS mode → type "scanreg/restore" command → choose a machine to normal use of the registry backup file recovery);

Troubleshooting hardware resource conflicts (right click on [my computer] → [property] → [Device Manager] tab locate and double-click the marked with a yellow exclamation mark in device name → in [resource] label Cancel "use automatic settings" option and click [change settings] button → find and assign a segment not present conflict resources).br>
2. test with diagnostic software

That is, use the specialized examination, diagnosis of a hardware failure of tool software to help find the cause of the failure, such as NortonTools (Norton Toolbox). Diagnostic software not only able to check the whole system internal parts (such as CPU, memory, motherboard, hard drive, etc.) of health, but also can check the entire system stability and system performance capabilities. If you find problems will give a detailed report information that allows us to find the cause of the failure and troubleshooting.

3. direct observation

Through seeing, hearing, touch, smell, etc check more obvious failure. For example, BIOS beep or Debug card to determine the failure of parts; observation power if there is a spark inside, abnormal sound; check various plug is loose, cable is damaged, broken or touch line; circuit board components are Perm, char, fracture, unsoldering virtual welding; various fan is working properly. Some of the symptoms appear and the available rubber hammer tapping the symbol, the observation of changes in symptoms to determine fault location.

4. plug replacement

The preliminary identify the location, may be suspected of parts or reseat cables to exclude loosening or bad reasons. For example, the card removed after using the eraser to clean gold finger, and then plug it better; to Reseat the various cables, etc. If after swap not troubleshooting, you can use the same function model of card to replace the failed boards to determine the card itself has been damaged or motherboard slot problems. Then replace the card according to the situation.

5. the system

The most serious fault is the machine start-up without any display and alarm information, application of the above methods has been unable to determine the cause of the failure. At this point we can either take the smallest system diagnosis, i.e. by installing only the CPU, memory, video card, motherboard. Ifyou do not work properly, then the four key parts adopt the Replace method to find the faulty part. If properly, and then add the hard drive ... And so on, until you find the root cause failure.

These are the fault of the maintenance of computer hardware for a general summary. In the face of hardware failures, as long as we are careful observation, calm, careful operation, analysis for most of the failures are able to solve. Believe that the technology and experience of the precipitation will make you become a master.