In the process of using the computer, we often encounter such or such a problem, so that we are helpless, that is, delayed the normal work, and destroyed a good mood. In fact, the computer failure is not as terrible as we imagine, as long as you notice in the use of summary, you will find some ways to eliminate and experience. Through the fault we see, it is generally divided into two kinds: software fault and hardware failure. For software failures, solve more trouble, it is not directly reinstall the system can, here, the author will introduce some simple hardware troubleshooting methods.
First, CPU failure and solutions
Failure phenomenon: Press the power switch after the computer does not start, black screen
Solution: The CPU itself out of the probability of failure is not, mostly because of poor contact, overclocking, heat and other causes. Check for solutions as follows:
1, the motherboard CPU frequency jumper is not correct, resulting in the computer can not correctly identify the model of the CPU. Suggest a careful look at the motherboard instructions, in accordance with the requirements of the board jumper jump right. This behavior typically occurs on older motherboards that require manual jumper CPU multiplier and FSB, and the current motherboard will basically not have this complex setup program.
2, overclocking too high to cause the computer can not start, you may recover through the following steps: First, to change the motherboard on the jumper, jump back to the rated CPU frequency (suitable for the old motherboard). Second, if it is in the CMOS soft overclocking computer, you can give the motherboard to the CMOS discharge, restore to the original state of the factory. Third, in some motherboards, if the overclocking is too high to start, you can press the keyboard "Insert" key to restart, so that the computer is forced to start with the rated frequency, and then press the DEL key into the CMOS reset CPU frequency.
There is also a situation where the CPU pins are not in contact with the motherboard's slot and can cause failures that fail to start. At this point, you need to focus on checking the CPU pins are not oxidized, loose phenomenon. This fault is relatively small, so if the above method can not eliminate the fault, you could focus on the inspection.
Second, memory failure and solution
(a) Press the power switch after the computer does not start, black screen fault resolution
The computer after the boot to self-test memory, but at this time because of the following reasons, it may cause the failure of the boot without display.
1, the memory of its own reasons for such a failure, such as the memory bar is broken, then only need to replace the new memory bar that can solve the fault.
2, the memory and the motherboard memory slot contact is not good, the general replacement slot plug can solve the problem, if not, use the eraser to wipe its pin parts can solve the problem.
3, there is a problem with the motherboard memory slot. For example, some memory slots on the metal contacts are inserted or broken, resulting in the memory of the plug in contact with bad or not contact. You can use a magnifying glass to carefully look at the memory slot on the small metal contacts, if crooked, the use of small tweezers carefully clamp down, clamp the time control, do not break the pins
In some cases, the memory and motherboard compatibility is not good, will cause the failure of the boot, of course, this situation is relatively rare, the solution is relatively simple, only to replace the new memory bar.
(ii) The machine can self-test, but when the screen appears "HIMEM is testing extended memory ..." After a long time to stop, or reported memory corruption.
Workaround: This is because the memory bar has a bad memory module, causing the system to detect the memory error alarm, only to change the memory bar to solve.
(iii) Memory capacity does not increase after memory is upgraded
Workaround: You can swap the memory strips for each other's slots and try it, or swap the memory strips in different slots on the motherboard for a try. When different models of RAM are inserted, some memory computers are not detected, because of the incompatibility between the motherboard and different kinds of memory. If this is the case, be sure to change the same size of the memory line.
Three Windows system is running unstable and often produces illegal errors, such as Windows Protect error.
Workaround: There are probably several reasons for this failure: one is that the memory chips on the memory chip are of poor quality, or that some of the small patch capacitors on the top of the memory strip are lost. You can try replacing one memory. Second, the memory work in the overload situation, such as the original work in the 100MHz frequency of the memory, so that it forced to work in the 124MHz or even 133MHz frequency, there will be problems, we can in the CMOS back to normal state.
In addition, if the memory bar is not compatible, although it can start normally, but there will still be such a mistake, this is the different models of memory between the obvious compatibility problem, remove one of the memory, the problem will generally be solved.