Your PC may occasionally freeze, you may hear unusual sounds from the drive, you may experience data corruption, or your computer may detect bad sectors on the drive. (howtogeek.com)
The baby would often make unusual sounds while sleeping though there is nothing to be worried about. (newkidscenter.com)
«You're slow,» I tell him as we press our ears against the frame to listen for unusual sounds, but it's all quiet. (bookbrowse.com)