How can I tell if my new computer is second hand?

1. Look at the serial number. Most departments should have the same serial number on the body and battery of the laptop, if the battery serial number is inconsistent with the serial number of the host, the battery is very likely to have been replaced; In addition, when purchasing foreign brand notebook products, whether the serial number of the fuselage is consistent with the battery and the outer packaging is a very important basis for overhauling whether the product is parallel imports.

2. Look at the anti-theft lock hole. If there is a blot, it means that the notebook anti-theft lock has been inserted, and it is very likely that a prototype has been made.

3. Look at the feet. If it is worn and dirty, it means that it has been used and the workbench on the production line is not so dirty.

4. Look at the cooling fan. If there is already a thin layer of dust on the fan blade, it means that it has been used for more than a week.

5. See the date of delivery. The original book that left the factory three months ago is still on the market, so you should pay attention. The sales of electronic products are updated very quickly, and it is impossible to let a book be pressed in the channel for so long.

6. Look at the keyboard. The keyboard of the new book is clean, but it doesn't shine. There will be dust in the gaps of the used keyboard, and the few keys that are commonly used will be polished.

7. Look at the screws. The screws were removed, and it must have been second-hand.

8. Look at the gaps. The refurbished book,The gap is generally difficult to deal with as new,It's like a small gap between the AB surface of this screen,It's like the gap of the optical drive,Even in the interfaces of modem and pcmcia card,If you can find dust,It's sure that it has been put on the prototype,And it's not sealed。

9.Check the details, many refurbished machine buckles will have scratches or fingers, and there will be dust at the interface of the notebook, look carefully or smell vigorously to see if there are any traces and smell of dust.

10.Use the software to check the number and time of powering on the hard disk.

11.Packing seals (although there are too many fakes now, just blow the plane and blow it down).

How to distinguish whether the computer is second-hand or brand new, teach you a trick, very practical.

Summary. Hello, the difference between a second-hand computer and a computer is mainly the loss of the battery, the loss of the memory disk, and the loss of the screen.

Hello, the difference between a second-hand computer and a computer is mainly the loss of the battery, the loss of the memory disk, and the loss of the screen.

First, the battery was depleted, and some of the second-hand computers had been used for 2 years before they were sold. There are certain limitations on the wiring of the battery. If he exceeds this age, the battery capacity will be reduced, maybe when you buy a computer, how much is the battery on the mark, how many thousands of milliamps?

But once you get it, you'll find that your computer uses electricity very quickly, and that's why.

Loss of the second memory disk. Many computers mainly store applications in a C drive when in use. The computer is stuck. If it is not solved in time, and the improper storage environment will cause the memory disk to fail to achieve the expected effect.

Thirdly, the screen is worn out, and the curtain is not regularly maintained. Because of long-term exposure to the air, it is easy to cause damage due to long-term handling and storage, and some even accidentally fall on the ground. Improper storage. It's going to cause me to be salvage on the screen. Consequence.