We will determine the stages of loading the laptop until it is fully turned on. We consider that the operating system has been successfully loaded as full power on. There is a desktop image, the mouse and trackpad are working. To get to this point, the laptop goes through several stages:
- power on;
- initialization and appearance of the image on the display;
- loading the operating system;
- working operating system.
Failure is possible at each stage.
Laptop won't turn on
There are two possibilities here.
Option 1... We connect the power supply, but the indicators do not light up. The laptop does not respond when the power button is pressed. The problem may not be with the computer, but with the outlet. We are trying to connect something to it, for example, a table lamp.
If the socket is working properly, then we check the power supply. The best option is to use a serviceable power supply. If the outlet and power supply are working, then the problem is with the laptop. Either the power controller or the power circuits on the motherboard are faulty. Such repairs require qualifications and components, so it is better to go straight to the service center.
Option 2... When the power supply is connected, the power and battery indicators on the laptop light up. This means that the power supply is working properly. But the laptop does not respond to the power button, the cooler and hard drive show no signs of life. Unplug the power and leave the laptop for 2-3 minutes. Then connect the power. Should help.
Problems with the RAM appear similarly. Disconnect the computer from power, remove the memory modules from the slots, and then reinstall them. You can install the module in another slot, if available. If the laptop has two memory slots, then check their serviceability one by one by running the laptop to one memory module. The check will show whether the problem is in the memory modules or in the slots. If the memory fails, then we buy a new module. Otherwise, we take the laptop to the service center.
Laptop does not initialize
The laptop turned on, the cooler started up, the lights blinked, but then nothing happens. The cooler is noisy, but there is no image. Most likely the problem is in the display. First of all, read the article on how to connect your laptop to your TV. If there is an image on the external screen, then the problem is with the laptop display. Either the display itself is broken, or the cable that connects it to the motherboard.
If the display is working properly, then the following is likely:
- problems with the processor, memory or video chip;
- BIOS problem.
Laptop diagnostics and BIOS reinstallation are best done in a service center.
Laptop hard drive defective
The laptop turned on, the indicators were blinking, and concise lines of system information appeared on the screen. That was the end of it. The operating system does not load any further. In this situation, the hard drive is most likely to blame.
