The computer broke down on its own for no reason, can you fix it yourself? Seek popular science

The display is that there is no hard disk, check the hard disk data cable and power cable in the host, sometimes this situation will occur if it is loose.

If it doesn't work, try to put static electricity on the motherboard.

Or press F9 in the BIOS, then press Enter, then press F10, and then press Enter. See how it turns out.

Here's how old computers work:

1. Sold to individuals. It's a great option to put your old computer on the second-hand market** and get the most out of it. The old computer can be restored to factory settings through the system, and the user data can only be deleted after the user data is deleted.

2. Give it to others. It's a second-hand computer, but it's a gift to someone who wants a computer but doesn't have one. This is a very important gift.

3. Use old computers to learn computer maintenance. If you are a computer science student, and you want to enter the computer repair industry in the future, then the computer disassembly study, this is a rare opportunity to practice, of course, you need to have enough skills to install the computer back, otherwise you will become a computer destroyer.

4. Trade in the old for the new. Now many electrical appliance manufacturers have launched a computer "trade-in" activity, giving merchants a certain amount of money, adding the old computer, we can exchange back a new computer.

5. Split**. If your computer is partly good and partly broken. You can take some good parts, such as memory sticks, graphics cards, etc., out and sell them to some computer maintenance personnel one by one.

Damaged computers have a low economic value, and the best thing to do is to reuse parts, such as:

1. If the computer is damaged by the motherboard, then the hard disk of the computer can be reused, and the hard disk can be removed from the damaged computer and installed on the computer that can be used to form a double hard disk. It can make the assembled computer have a larger storage space;

2. If the memory of the damaged computer is of the same frequency and the same era, it can also be used to expand the capacity of the memory of other computers, so that the assembled computer can run faster;

3. Damage to the host power of the computer, key rules**, and the mouse can be replaced in the future.

1. After some computers with higher configuration levels come over, mainly check the appearance of the monitor, whether the displayed image is still clear, and then look at the brand and configuration of the computer, and then sell those useful parts after upgrading or reassembling and debugging.

2. If the computer is those useless waste computers, it will be sold to a special computer garbage disposal plant, if the picture tube of the computer monitor can still be used normally, it will be reused, about 70 yuan, if the picture tube of the point display is bad, then it can only be sold for about 20 yuan, the abandoned host is usually refined by metal, about 1 kilogram of motherboard can be refined out of about 250 grams of copper. However, refining metals will cause a certain amount of pollution, and now the state only allows some formal factories by the sea to refine it.

3. Some ** computers will be reused, and after a slight modification, they will be sold to some small Internet cafes or individuals.