The cost of a computer is not small. So some people buy used computers. There are people who buy from hand to hand, and some people buy cheap second-hand machines such as Japan Used from the shop. I don’t want to say anything about buying from the shop. This is because jeans are usually not included and do not sell gin for fear of damaging the store name. The problem is with the handshake. Some sellers do not know much about their machine and the buyer does not understand it. Some sellers know that the machine itself is annoying. The buyer does not know anything.
The seller will provide you genuine articles as he does not want to tarnish his own image. What is wrong with your machine? Some do not tell the truth; My machine is very big. Buyers are likely to call everyone who looks appropriate if there are only a few. However, the buyer is the key. Unless you have a specific destination, you’re just moving the car and wasting gas. Here are some things to look for when purchasing a computer. Let’s get started…
(1) Hardware
Once you have purchased, look around the entire machine. Turn the main computer over and look at the back cover. The back cover has screws that hold the entire computer in place. Then there is the HDD cover. There will be a RAM cover. Warranty seals are usually attached to the cover and body shell. If the seals are torn, the HDD and RAM have been removed. But this is not a big problem.
This is because RAM can be removed for a variety of reasons, or the HDD can be temporarily removed for some reason. See you again Take a look at the screw holes. At one or the other hole, a Warranty Seal is usually closed. The nature of the Warranty Seal is that it is extremely fragile paper. If it breaks, it cannot be repaired. That’s why we ordered the war. If the vending machine is empty, the cover is considered to be open.
However, be sure to check each screw with a flashlight. If it has already been removed with a screwdriver, You can see brightly colored hands. Then look at the monitor. There are screw holes on the surface of the monitor with stickers. If you look along the sides, make sure the top cover and the bottom cover are loose. If all goes well, this machine may be used a lot, but it is generally considered that nothing has been turned on / repaired.
(2) Check the specifications.
The surest way is to check in the BIOS. As soon as you press the power button on your computer, a small blinking light flashes before boot. This is the POST stage. Power On Self Test on POST Computer. As soon as the power is turned on, the computer checks to see if any of its boot components are working. Boot when everything is working. At that point, you must enter the BIOS settings. Each computer is different. It varies depending on the brand. What is shown here is a common definition. To be sure, it is a good idea to search the internet for the relevant model number.
ASUS — F2 or Del
For Acer — F2 (for all computers), for F2 or Del (Motherboard).
Dell — F2 or F12
HP — F10
Lenovo Laptop — F2 or Fn + F2
Lenovo Desktop — F1
Lenovo Thinkpad — Enter then F1
MSI — DEL
Samsung — F2
Toshiba — F2
These are the keys. You need to be quick. You can not click on Windows. Click before boarding. Click as soon as the power is turned on. Once Windows starts up, you will need to restart and re-enter. Once the BIOS settings are up, you will see a complete list of CPU types. No one can access the BIOS. That’s why Very skilled people can not tell if you can modify the BIOS firmware. Not as good as normal users (just know how to edit the registry).
(3) eyes; ear, Use your nose
The last hardware check was Power Off. Now that the power is on, you need to check. There are hot air outlets next to the computer. First look at the eyes. But with the naked eye, nothing special. Listen with your ears closed. A good computer should be quiet.
“Chris .. one .. one” “dot .. glut ..” “jig .. jig” “shit .. shit” is a sign that you will have to go to the shop soon. If you smell something like sniffing with your nose, this is the animal. An animal that will soon be discarded.
(4) Check the accessories that come with it
Keyboard .. Type one key at a time. Are you stubborn? Is it sticky? Are you tired? Are you free? You will know. Touch the TouchPad. Stumbling? Does the whole thing work? Are the buttons good? Keyboard and mouse; If you want to check if TouchPad software is good or bad, send a message from Messenger and download the key test.
Play as wide as a song. Do you have a clear voice? Is it crackling? Toe Na? Try Webcam Is it clear? Look at the screen Look at the frames. Are you chewing? Is it white? Do you think there are stripes? Are the lines running?
5. Try CPU-Z software
If you need software, send it to cpu-z by messenger and download it. If you like it, buy it. Get rid of gin.