The need to diagnose a laptop appears when a software or hardware malfunction occurs. Hardware includes breakdowns of the laptop's components - the central board, power supply, or loosely attached boards. Program errors cause the operating system to malfunction.
Necessary
- - screwdrivers;
- -electronic tester;
- - service documentation;
- - alcohol;
- - napkin;
- - installation disk with the operating system;
- - compressed air cylinder;
- - a syringe with thermal paste.
Instructions
Step 1
If your laptop does not turn on, check if the power wires are securely connected to the laptop, and also use an electronic tester to check the presence of voltage in the mains.
Step 2
If the problem persists after following the preceding step, use an electronic tester on the power supply output to check for output voltage. If there is no indication of the device, you must replace the laptop power supply.
Step 3
If the operating system does not load on your laptop, check by visual inspection that the video card is securely fastened and there are signs of damage on it, clean it of dust, if any, by disassembling the laptop according to the instructions in the service documentation using screwdrivers.
Step 4
If the problem persists after checking the graphics card, visually inspect the laptop motherboard for signs of damage.
Step 5
If, after performing the above operations, the operating system still does not boot, sequentially check the reliability of the connection of the hard disk, RAM modules, clean the contact pads of the RAM with alcohol and a napkin.
Step 6
If the operating system does not boot correctly, reinstall or restore the operating system.
Step 7
If the software conflicts with the operating system, reinstall or restore the system.
Step 8
If your laptop has been affected by virus programs, install an antivirus program, update it, and run a full scan of your computer.
Step 9
If your laptop overheats, clean the cooling system with a compressed air canister and replace the thermal grease on the CPU.
Step 10
If there is no sound on your laptop, install the latest software for your sound card.
