This is all What You Need to Know Before Buying a Used Laptop | Tips to follow and How to Test the Computer


Advice when buying a used or new laptop - the complete guide is our topic today, but it should be noted that this topic dealt with computers in general, whether it is a new or an old laptop or an office computer

First: Learn about computer specifications and features

Method: Use one of the following commands

dxdiag or msinfo32

I previously completed a separate topic in which I dealt with how to identify computer specifications using the previous commands

Second: Examine the external condition of the computer

Is it good or not, with an emphasis on checking the condition of the screws under the computer if they are in good condition

New ones appear, so this is mostly evidence that the computer has not been dismantled and repaired before, unlike if those screws appear as old

It is scratched, so this is evidence that the computer was opened and repaired, perhaps many times, and thus its effectiveness will be low:

Third

Turn on the computer and observe its behavior during operation, focusing on the sound of the processor fan and displaying the image on the screen. If you notice tears in the screen or random changes in its colors, this is evidence of a problem with the graphics card or damage to the screen itself in this case I advise you to use another computer

Fourthly

Check the CD reader and all computer ports especially the USB ports due to their frequent use

Fifth: Checking the battery’s effectiveness

Method: Turn on the computer using the battery only and note the percentage of charge in it, on the right bottom of the screen

Then watch a video while working at the same time on another program on the computer, for example, drawing application or Movie Maker, for about 5 minutes.

Question What is the purpose of that in your opinion?

The answer is simple: increase the load on the computer in order to consume more energy or electrical current, and thus check the battery’s effectiveness. Can you supply the computer with electrical current for a long time or will it run out quickly?

For example, if the charge percentage was 80 percent before the aforementioned operation, and after 5 minutes it becomes, for example, 74 or 72 percent, then the battery is good. Either if it decreased significantly after 5 minutes to become, for example, 40 or 30 percent.

Sixthly

This point is very, very important because it is crucial for the computer. If it is not paid attention to it, it may become the cause of the computer’s failure, perhaps permanently.

See what I mean ??

Simply put, it's the charger that is used to charge the battery

The voltage of the charger should be checked, as well as the value of the ampere it carries and compared to the voltage and amplitude of the computer that you will find at the bottom of the computer.

It is similar or for the Amperage, that the charger is larger than the one on the computer, is very, very important

Note the location of the charger's voltage and amplitude

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The location of the voltage and the ampere that the computer needs to work

In addition, the original shipper bears the same trademark or company name as the computer

These six points are very important and that you must be careful when you want to buy and which should make them the reason for your acceptance of the deal or not.

But we will refer briefly to other points that should not be ignored, namely:

Wi-Fi card check

Check the amplifiers

Check the keyboard and make sure that all the switches are working or not

Mouse examination

Monitor the temperature of the computer exactly under the side of the processor, if it is abnormal, it needs maintenance and adding cooling paste to the processors