The hard disk is suddenly not detected, and the computer suddenly does not detect the hard disk

It's a very simple thing Internet café machine often occurs this situation There is a large cable between the hard disk and the motherboard, or there is a problem with the data cable between the hard disk and the motherboard This situation I have encountered a lot If it is a data cable, please change the cable to try If it is already a cable, please take the cable and insert it from the new many times and then start It is estimated that it will be good If it is not good, replace it with a cable 5 The matter of fast money is very simple It is definitely a problem with the cable The motherboard cannot detect the hard disk when starting the hard disk XP And the medium of detecting the hard disk is the cable Install the method I said Try it It's sure to be successful, the line is that very wide line, it's easy to find, if not, I'll send you a screenshot.

Listen carefully to the hard drive sound. Whether there are unusual sounds, such as creaking. Then your hard drive is going to hang.

Back up your data. Get a new one.

Have you restarted frequently before, I had once, It seems to have been taken away by a master and replaced with a data cable and then redone the system, I also think it's strange, there's nothing wrong with the data cable, I haven't figured it out so far, but, you try it!!

You unplugged the other hard drive and the optical drive power cable.

Just plug in this one hard drive and see.

It's a pioneer card, haha. That's what that brand has been going on for a long time. No way. Let's change it.

The voltage is insufficient, and the power of the power supply is low

Kao,, don't hurry up and study yet.

Hello, I have seen your question and am sorting out the answer, please wait a while

1. When the system cannot recognize the hard disk, you can troubleshoot and solve it as follows: first boot into the BIOS, confirm whether the hard disk can be recognized in the BIOS, if the BIOS cannot recognize the hard disk, disassemble the chassis, confirm the SATA interface, and whether the power cord of the hard disk is loose; 2. If there is no abnormality in the interface check, it proves that the hard disk has been damaged and cannot be used at this time. If the hard disk is recognized, check whether the disk capacity, rotation speed and other information are correct, and then continue to the following steps:

3. Disassemble the hard disk and mount it to the SATA interface of another computer, or use a mobile hard disk enclosure to use it as a mobile hard disk. Then boot the other computer into the system, open the disk manager, and confirm whether the hard disk is recognized, if not, it proves that the hard disk still has a hardware fault and cannot be used; 4. If it can be recognized, right-click and select "initialize" it, and then partition, format and other operations, then the hard disk can be read and used normally. The hard disk used in the notebook computer is generally inches, and the desktop is inches, due to the different technical parameters of the manufacturing process of the two, first of all, the hard disk only uses one or two disks to work, and the hard disk can be assembled with up to five to work; In addition, due to the large disk diameter of the hard disk, it can provide relatively large storage capacity; If you only compare the area density storage capacity, the performance of the hard drive is also quite satisfactory.

Laptop hard drives are one of the few universal components in laptops, and basically all laptop hard drives can be universal. However, laptop hard drives have a parameter that desktop hard disks do not have, that is, thickness, and standard laptop hard drives have 7,,,4 thicknesses. The hard disk is designed for ultra-light and ultra-thin models, and the hard disk is mainly used for the larger thickness of the optical and soft interchange and the fully built-in model, as for the hard disk is the product of the previous single disk capacity is small, basically no model is used.

This situation may be caused by a damaged hard disk or a poor contact of the cable plug, or it may be a power supply problem.

Several reasons 1Power Aging: Power Rating: Power Rating, With, With, Host, Hard Disk, External Equipment, etc.

2.There are many bad sectors in the hard disk, which leads to unusability.

3.The hard disk is connected to the motherboard cable or interface fault, resulting in the inability to detect the hard disk judgment should be the hard disk cable or interface fault is relatively large, because if the voltage is insufficient, the hard disk should also be displayed just card, and the bad sector will also display the hard disk, so the third article is left. Replace the port where the hard drive is connected to the motherboard Generally speaking, there are several ports.

The steps to resolve the problem of not being able to find the hard disk are as follows:

1. After entering the BIOS first, select the "IDEDDautodetection" item to see if the existence of the hard disk can be detected, and check whether the model is consistent, if the hardware problem is ruled out normally, if the hard disk cannot be found, then your hard disk is damaged or connected incorrectly.

2. If the hard disk can be viewed in the BIOS, generally the main boot sector of the hard disk is damaged, you can use the PE system with DOS toolbox to run the DOS command "fdisk mbr" to try to repair the main boot sector of the hard disk.

3. If the method in step 2 does not work, you can try to restore the BIOS to the default settings.

4. Sometimes there is some kind of error in the system, which may cause the system to fail to recognize the hard disk, use the system installation disk to repair the system or reinstall the new system.

5. If it is a hardware failure, it is recommended that the customer dial in and open the computer case to plug in the relevant wiring of the hard disk, if the problem cannot be solved, it is recommended to send it to the service station for maintenance.