If the computer does not turn on, then, first of all, you should check the monitor. The plug may have loosened, and the boot process is simply not displayed on the screen. Check network cable and network connection. Before taking drastic measures, it is necessary to make sure that all necessary manipulations are performed.
Here are the possible reasons that the computer does not turn on, does not squeak, does not show signs of life:
- the network filter is disabled ;
- power supply is off;
- no contact with the network;
- fixing of components has loosened (it can be a video card or monitor, a motherboard or other components).
Often the cause of the failure is a malfunction of the power supply. In most cases, it has to be changed, since it is quite difficult and expensive to repair modern power supplies.
, , . . . , BIOS. , .
Insert - . , . Clear CMOS, , .
Often the reason for the failure of the boot are removable media or floppy disks. Therefore, before starting the computer, you must remove all third-party drives. If the computer does not turn on, it is recommended to pay attention to the special sounds of the system unit.
One signal informs about error-free loading, and if the video card is faulty, the system unit will give one long and three short signals. The absence of a keyboard connection is notified in the same way as a video card malfunction. If the graphics subsystem is faulty, then one long and two short signals will be heard.. . , , . , , .
, - . BIOS.
But if the computer is healthy and the operating system does not boot? This may be due to the fact that the system was damaged as a result of a virus attack or an unauthorized shutdown. In this case, the files necessary for the correct download are either erased or damaged. You must try to start the computer in safe mode, restore the previous state and restart it in normal mode. If the computer still does not turn on, it is recommended that you check the startup. Perhaps some program is interfering with normal startup.If all attempts to bring the computer back to life are futile, you can decide on extreme measures - reinstall the OS.