Guide to computer repair pit-avoidance
15 years of engineers teach you the right way to save yourself and avoid pits
15 years of engineer experience summary, help you avoid detours
First, calm down: computer failure, the first thing to do
When a computer suddenly goes black, blue screen, jams, or does not turn on, most people's first reaction is to restart it repeatedly, click the mouse furiously, or even disassemble it. In fact,The wrong first reaction is often the main cause of failure propagation. The correct approach is: first record the symptoms (when it happened, what was done before, there is no abnormal noise or smell), then turn off the power and let it stand for a few minutes, and finally decide the next step. If you smell burnt smell or hear a "pop" sound, you should immediately unplug the power supply, do not try to turn on again-this is usually a signal that the capacitor explodes or the component is burned. Continue to energize may burn more parts.
2. Can you repair it yourself? Self-help boundary of three types of faults
Not all faults need to be repaired, but not all can be DIY. They can be divided into three categories according to difficulty:
- Software (self-help):System card, virus, driver exception, boot slow. This kind of problem reinstallation system, clean up the startup items, update the driver can be solved, hands-on ability of strong people can handle themselves.
- Modular hardware (semi-self-help):Memory loose, hard drive aging, insufficient power supply. This kind of failure can be replaced with corresponding accessories, but you need to disassemble the machine and understand compatibility. Novices are recommended to operate under the guidance.
- Chip level fault (must be sent for repair):Motherboard power burn, GPU virtual solder, laptop water corrosion. This kind of professional equipment such as microscope, BGA rework station, cleanroom environment, etc., will almost certainly cause secondary damage.
Four things you must do before sending for repair can save you time and money.
After deciding to send it for repair, making the following preparations can make repairs more efficient and avoid disputes:
- Backup data:As long as the computer can barely boot, copy important files as soon as possible. Data security is always the first priority.
- Record Configuration:Take a screenshot of the computer model and configuration, so that engineers can quickly judge and quote.
- Specify medical history:Truthfully inform the operation before and after the fault, such as "falling","entering water" and "installing memory", concealment will delay diagnosis.
- Confirm quote method:Choose "first test, then quote, then repair" merchants, refused to look at the machine on the dead price or low drainage and then increase the price behavior.
4. How to maintain it so that the computer will get sick less
Most hardware failures can actually be prevented: regular ash cleaning (desktop once every six months, laptop once a year) can avoid overheating components; do not use inferior chargers and power strips; laptop away from the cup, avoid blocking the heat sink on the soft bed; important data adhere to the "local + cloud" double backup. Develop these habits, can make the computer more than three or five years.
extended reading
- When the computer has a blue screen or cannot start, if there are important files on the hard drive, it is recommended to contact firstData Recovery ServicesTry something else.
- Enterprise users If multiple computers are having problems at the same time, it may beNetwork environment failureorserver exceptionto cause.
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Original by engineers, including self-inspection steps, model comparison and price details
