-
1. Fault phenomenon: press the power button of the host, the power indicator of the host does not light up, and the computer does not respond.
Fault analysis: Generally, this situation is caused by the power supply, so replace the power supply first, but the fault is not eliminated. Later, I thought that the initial fault phenomenon of this computer was that it could self-test normally after booting up, but the screen showed a prompt:
CMOS Checksum Error - Defaults Loaded", press the "Del" key to enter the BIOS, and the computer can boot normally after changing to the default settings, but a prompt will appear after restarting. As you know, this phenomenon is generally caused by the failure of CMOS batteries. After a few days, the host computer did not respond after turning on the computer, but after ten minutes or even dozens of minutes, the computer could pass the self-test, but the screen would still appear prompts.
After a few more days, the computer was completely paralyzed when I turned it on again. Through analysis, the focus is on the suspicion of CMOS batteries.
Troubleshooting: Replace the CMOS battery, the screen will also appear after powering on: "CMOS checksum error -defaults loaded", press the "del" key to enter the BIOS, change to the default settings after the computer can boot normally, there is no prompt after restarting.
I can't imagine that a small CMOS battery can completely paralyze a computer.
2. Fault phenomenon: press the power button of the host, the power indicator of the host is on, but the display has no response, and the computer cannot pass the self-test.
Fault analysis: The computer cannot self-test, which is roughly judged to be a hardware failure, and it is suspected that it is caused by damage to the motherboard or poor memory contact. The author adopts the idea of "easy first and then difficult", unplug the memory first, clean it up, install it and try again, and the fault is still there.
Then, the author carried out a major cleaning of the host, and every part in the host was thoroughly cleaned, and the fault was still not eliminated after booting. Since there was no replaceable motherboard at hand, I tried using the minimum system method (CPU + memory + motherboard), and the result was that I successfully passed the self-test after booting. Because the computer has no optical drive, floppy drive, and the motherboard integrates graphics card and sound card, the author locks his eyes on the hard disk and hard disk data cable.
Troubleshooting: The author still adopts the idea of "easy first and then difficult", first replace the hard disk data cable, and the computer will be self-tested after booting and booting normally. Carefully inspect the old hard drive data cable, and finally found that the cause of the failure was due to a damaged connector of the data cable.
At this point, the problem is completely solved.
-
There are bad sectors, let's separate the anti-bad sectors
-
Hard drive bad sectors fix it.
-
It should be a problem with the power supply system, or the hard drive of the lead searcher is broken.
1. When the power is turned on, the hard disk is the most powerful. Some computers have a bad power failure, they will not turn on, and the hard disk will have abnormal noises. Try unplugging other power-hungry devices, such as optical drives, and leaving only the hard drive to see if it improves.
2. If the above method does not work, use the replacement method to replace the power supply; Or take the hard disk to another leaky place to test whether it is caused by insufficient power supply.
3. If the hard locust search disk is damaged, such as violent fall, malfunction of the magnetic head, or serious damage to the platter, there will also be abnormal noise. This basically can't be used anymore, it's working for the time being, but it's almost out of use. If you have important data, back it up as soon as it's still available.
-
The computer hard disk makes a sound and can't turn on, it should be that the hard disk is faulty, and this situation can only be solved by replacing the hard disk.
Analysis of the sound emitted by the hard disk:
1. The hard disk has been used for a long time and is aging, or the internal mechanical structure of the hard disk has failed, resulting in read and write errors and repeated reading and writing noise.
2. If there is an error in the data, if the head has an error in the file when reading some files, the head will increase the power to read it many times, and the reading will continue, and the error will occur if it cannot be read. There is a lot of noise during the process.
-
【..What should I do if there is an abnormal sound on the hard drive? 】
1. Immediately stop using this computer and remove the hard drive.
2. Set the removed hard disk to 'from' disk and hang it on another computer to see if it can be read, and if so, rescue the useful data on that disk.
3 [Abnormal sound on the hard disk] is not a good thing, the foreshadowing is unknown! Do you dare to use this plate after it is repaired? Dare to save something?
-
Can't turn on the host has nothing to do with the hard disk.,I think what you're talking about is that you can't get into the system.。
Listen to what you say, it should be that there is a problem with the disk of the hard disk, see if it has passed the physical period, if not, then take it to the relevant business for warranty, if it has been this retention period, then you can only replace a hard disk.
-
W's computer is the same, I don't know what to do.
-
How did the alarm sound, did it show anything on the computer,
The system is faulty and the system needs to be reinstalled.
Solution(s): 1Open the run window, type cmd, and press enter. >>>More
Why does the computer screen go black after booting up, and how to solve it.
Find professional personnel for maintenance, preferably a 4S shop.
It is caused by the wear and tear of the fan, remove the self-adhesive on the back of the fan, point two drops of sewing oil, do not need other oil, and then seal it, and use it for ten days and a half without a problem. If you have time, change it