Argus Monitor runs as a background task and constantly monitors the health status of your hard disks. You will be informed in case one of the critical S.M.A.R.T. values changes. If one of the attributes reaches a vendor specified threshold, you will also get a warning that the hard drive is likely to fail within the next 24 hours of operation.Argus Monitor also stores the S.M.A.R.T. status of every drive (even the ones attached only from time to time - e.g. via S-ATA) and will therefore be able to warn you of decreased drive health even if the hard drive was attached to another PC when the value decreased.Give Argus Monitor a try to see what it's really capable of!