Computers often do not detect the hard drive what to do

computers often do not detect the hard drive what to do

The computer often does not detect the hard drive solution one:

There are several reasons for these:

1, the hard disk itself has a problem, may be broken, with tools to detect, bad can only send repair.

2, the data cable or power cord is not plugged in, check.

3, the long-term use of hard disk, the back of the circuit board on the gold finger of the oxidation leads to poor contact, the need to remove the gold finger on the oxide, this operation is recommended for professionals to operate.

Secondly:

1, first to exclude a new data line, and the hard disk installed after the restart of the computer, self-test detected the hard disk, and the normal access to the system, but the system soon ran suddenly panic, and prompted the hard drive read errors.

2, restart the computer, run HDD scan software into the main interface, and then click the "Start" button-year-old hard drive for scanning.

3, scan the completion of the scan results will be a legend in the form of the right side of the interface, the figure shows that the hard drive does not exist any bad.

4, restart the computer failure is still, at this time suspected power supply D line plug voltage is insufficient, and then use the Multimeter Test D line power supply voltage.

5. First measure the voltage between the yellow and black lines corresponding to the pins, the multimeter will be adjusted to 50V, and then the black pen inserted into the line of the wire corresponding to the pin, the red pen inserted into the corresponding pins, at this time the measured voltage is +12v, indicating the yellow line and the voltage between the ground is normal.

6. The voltage between the red line and the black line corresponding to the pin is measured. In order to measure the accuracy of the need to adjust the multimeter to 10V, and then insert a black pen to the corresponding pin, the red pen inserted into the corresponding pins, the voltage measured at this time is +5v, indicating the voltage between the red line and the ground is normal.

7, to sum up that the power supply can be normal power.

8, will be inserted in the optical drive power cord and plug in the hard drive of the power cord exchange, and then the boot found all normal, but open the "My Computer" window, found that the optical drive letter is missing, so you can determine the original hard drive power cord problems.

9, carefully observe the problem of the power cord and its D-type plugs, found that the D line Plug 4 column joints rich in a layer of yellow dirt, and then the tweezers with a dip dipped in alcohol absorbent cotton balls will be removed from these yellow dirt.

10, the optical drive will be connected again, restart the computer CD-ROM is successfully detected, so that the fault is completely resolved.

The computer often does not detect the hard drive solution two:

First symptom: The system did not find or could not recognize the hard drive after the boot

This type of situation causes the system to not have a hard drive to boot, even if we start the computer by other means, we cannot find the hard drive. In fact, the solution to this situation is very simple, because so far, has not heard that the hard disk will appear and the motherboard compatibility issues.

This type of problem appears to be a great possibility in the hard disk and the connection between the motherboard, so here we would like to suggest that the hard disk and the motherboard between the connection to replace a root, if not the problem of wiring, then you look at the hard disk on the master-slave line is set correctly, How to set the location of the master and slave jumpers will generally be prompted on the hard disk, according to your own needs to set the hard disk as the main disk or from the disk can solve such problems.

Second symptom: Improper BIOS setup causes hard drive problems

This type of problem is generally not the responsibility of users, because the current motherboard is used to automatically detect the type of hard disk and brand model features, so usually do not make changes to this, but because some of the motherboard in the runtime may identify the type of hard drive error situation, This happens in the same way that the system will not boot from the hard disk.

In addition, the motherboard in the BIOS can also set the hard drive Normal, LBA and large work mode, which must be based on the hard disk situation to set up, otherwise it is very likely that there will be other errors. The solution to this type of situation is not difficult, as long as the BIOS instructions for the motherboard and the hard disk itself are correct settings can be resolved.

Third symptom: There is a master bootstrapper but cannot start the hard drive

As we all know, the hard drive has a primary boot area, where the master bootstrapper is present, and if the main bootstrapper has a problem, then the system cannot be booted from the hard drive, which is a normal thing.

This is not a very complicated thing to do, as long as you enter the FDISK/MBR command in DOS mode, which is largely due to the fact that the main boot of a hard disk is already included in the Fdisk command file, so why not use it if Microsoft has already thought of it. From the current situation, the system is not able to properly boot the system there are many, but most of the common is mentioned in this article.

Symptom four: The BIOS can identify, but the system is not recognized

This problem often occurs when you add a new hard disk to your computer, in the BIOS can see, but the system in the Disk Management, Device Manager is not visible, in addition to the common jumper, set master and slave disk, there is a little often overlooked, that is in the Device Manager, "IDE ATA/ATAPI Controller"-" Main IDC channel "or" Secondary IDC channel "(You put the hard disk in which the port set that one) of the properties," Advanced settings "-Equipment 0―― device type, if it is" none ", please change to" automatic detection ", and then restart it.