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.