My friend just installed a new machine, there is no problem with the configuration, but there are often unexplained problems. The specific use is that the hard disk has a bad track for a long time, and when running large software, it will often pause, sometimes it will Blue screen, reboot, or no response for a long time, it takes more than 10 minutes to start Windows, and you can clearly hear the "giggle" inside the hard disk every time you start it. Of course, It is easy to think that it is a hard disk problem. Checked in the 52 hardware forum, the same is true for a new hard drive, and soon there is a bad track, friends laughed that I was born with a hard drive.
The author specially took his "problem" hard drive to study it carefully. This hard disk is 40GB, divided into 3 zones, and there is no problem in software installation. First hang on my computer, use my own hard drive to boot the system, then check this hard drive, who knows that just click on the hard drive letter, it will make a "giggle" sound, but after two sounds there is no At this time, there is no problem in reading and writing to the three partitions of this hard disk. Then use the Windows 98SE's own disk scanning tool (standard) to scan, 3 partitions are also no problem, the problem will not be that simple? Also use the "complete" mode of disk scanning, this has the result, the original D, E partition of this hard disk is no problem, that is, the C drive has a problem, and it is at the beginning of the paragraph, just the section to start Windows, No wonder this hard drive has been reinstalled a few times. Windows is the result of this.
However, the problem is still not finished. Why is this damage still occurring after replacing a hard disk? Even if the quality of the hard disk is not good, this probability is too big, right? Also pay attention to the "giggle" sound when the hard disk is started. Generally speaking, when the hard disk is started, there is no such sound. According to experience, this sound is generated when the head is reset when the hard disk is started. This is a bit strange. The head will automatically reset when the power supply is not available. Is it power supply? When the hard disk starts the movement of the magnetic head, the required driving current is very large. If the power supply is not at this time, the magnetic head will be automatically reset, and since the hard disk speed is unstable at the time of starting, it is easy to cause the magnetic head to scratch the hard disk, such that The paragraph at the beginning of the hard drive is in jeopardy.
It seems that the first evil of this incident has been reduced to two aspects: one is the problem of the drive circuit of the hard disk, that is, the problem of the hard disk itself, it is likely that the hard disk circuit is not a problem, so it cannot be a hard disk. The head motor provides sufficient starting current for the foot. As far as the current situation is concerned, the possibility of this situation is not great; the other is the quality problem of the computer power supply. This has no indirect relationship with the nominal power of the power supply, but is related to the power supply capability of the computer power supply. In this way, although some power sources have a nominal power of 300 W, their switching impedance is relatively large, so that it cannot provide enough current for the foot when it is turned on, which forms the situation described above. I replaced a power supply from another brand and the problem was solved.
In addition, there is no definite standard and verification method for the power supply capability of the computer power supply, so that no one has proposed such a concept, so the best way to deal with this problem is to increase the power reserve of the power supply, try to make each A computer accessory, motherboard, hard disk, optical drive and other important accessories, enjoy a separate power cord, and the power consumption is unstable, or the power supply of non-common accessories such as floppy disk, fan, etc. should be separated from the hard disk, optical drive, etc. Reduce problems caused by mutual interference.
Source: Internet
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