Why does not the laptop work?
Determine why the laptop does not work or why its screen does not turn on, the initialization system does not start, it's not so easy.
We will consider several possible causes of such malfunctions. Knowing at least the essence of the problem, you can plan the costs of their elimination.
Laptop does not work: faults and their causes
We note at once that, depending on the breakdownthe cost of repairing the laptop can result in a very substantial amount. And in some cases (for example, in case of bridge failure), no one can guarantee that after some time the problem element will not break again. Therefore, before ordering repairs, first carefully weigh all the pros and cons. In some cases, buy a new laptop, or even better, a stationary computer will be more appropriate.
The laptop does not turn on at all
That is, after pressing the power button, you do notyou see no characteristic reaction of the gadget: the computer does not make any sounds, do not light those indicators, bulbs, which usually light up when you turn on and so on.
In this case, the cause of the problem may bein a faulty battery. To verify this, remove the battery from the computer and then connect it to the mains. If the device is working, the cause is really in the battery. Replace it.
Also, the notebook may not turn on due to themalfunction of the motherboard. Only a specialist can diagnose this problem. The problem can also be in the failure of the power supply. You can check this by connecting another suitable block. Finally, the problem may occur due to a malfunction of the BIOS chip or if the BIOS flashed. The laptop will also not turn on if the power connector is damaged, the multicontroller is out of order, a short circuit has occurred in the power circuit and in the north / south bridges.
The initialization process does not start
Initialization is what happens tocomputer until the logo of your operating system appears on the screen. If after turning on the laptop demonstrates "signs of life" (hums, lights, keypad lights, etc.), but there is no initialization, the problem may be the damage to the north bridge, the BIOS malfunction, problems with the processor or memory.
The laptop shuts down or starts the BIOS restart
If the computer switches itself off orthe BIOS reboot is started, then, probably, the south bridge, the processor, has overheated, or some problems occurred in the BIOS itself. It can also be assumed that the power supply unit is faulty (if the battery is exhausted, the computer will not be able to turn on, respectively), a malfunction of the cooling system, in which the gadget will overheat and turn off.
The laptop does not go any further than downloading the BIOS
After turning on the computer gives an error informing that the disk is not system, it hangs on the BIOS splash screen or produces a black screen with a flashing cursor, which is terrible for any user.
In this case, it can be a hard disk problem (it can "pour") or a malfunction of the south bridge.
OS does not load
If the matter is before boot, the OS still comes, but onAt this stage, the computer starts to reboot or hang, the problem most likely lies either in the defeat of the software by the virus, or in the violation of the structure of the system files.
With these problems, it's easiest to reinstalloperating system. You can do it yourself. The only thing that can cause difficulty is finding the right drivers. If you have information on your laptop that you need to keep, then it's better to contact a specialist in the service center or any computer repair company - they can get all your files and throw them on a removable media.
The screen does not turn on
After pressing the power button, you hearcharacteristic sounds of the cooler, you can see that these or other indicators light up, but the screen shows no signs of activity. Try to connect an external monitor - if it works, then the cause of the malfunction, it is possible, is the computer matrix. It can be diagnosed in the service center, and then replaced with a new one. It is also possible to suspect the problems in the inverter (the loop leading from the inverter to the motherboard is damaged, or the inverter is not receiving power, or there are faults in the element itself).
Bad image on the screen
If the picture on the monitor is only partially visible,there is an easy ripple or there are impressive vertical or horizontal strips, then the problem may be the damage to the screen plaque, the failure of the motherboard or the matrix, the separation of the video chip.