Problem in the PC power supply can do crazy things, my new PC was behaving abnormally for many days and like it was getting restarted automatically, used to hang in the middle of no where and sometimes even failed to power up when I pressed the power button. There were strange chewing sounds coming out of the hard disk and I was very confused, After a puzzled period of many days.. I have finally come to the conclusion that an uneven supply of output by the computer power supply is the root of all these problems, cause of the noise from hard disk was also the power supply, the noise only came when the power supply was supplying irregular current and there was no problem with hard disk as it worked fine while on other PC and the problematic computer also restarted/hanged when I kept it running by taking the hard disk out


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