Receiving S.M.A.R.T. status bad backup and replace error
While starting up your computer or running a hard drive diagnostic utility, if a black screen with the error "S.M.A.R.T. Status BAD, Backup and Replace" Press F1 to Resume error message appears on the screen, this is an indication that your hard drive is about to fail or has already failed.
The S.M.A.R.T. system is a utility that monitors the "health" of the hard drive and reports any potential problems, as an early warning system to allow the computer owner time to back up any important files before the hard drive fails. In the above example, the error message indicates that the Pri Master or Primary Master hard drive is the drive that is bad. If there is more than one hard drive in the computer, this error may change depending on the bad drive.
If the computer is able to boot after pressing the F1 key immediately backup all information on the computer and contact the hard drive manufacturer for replacement or additional help. In some very rare cases, the S.M.A.R.T. implementation on your computer may have issues of its own and may need to be patched before replacing the hard drive.
If you press the F1 key and the computer cannot boot, one or more of the files on the computer that are required to boot may be corrupted. It may still be possible to recover some of the information on the hard drive, but it will require either that you boot from an alternative boot disc like an UBCD or Linux OS disc or that you connect the drive to another working computer. Once you've booted to an alternate location the files may still be accessible on the bad drive, and if accessible they can be moved to an alternative location such as a USB Jump drive.
If I get a S.M.A.R.T. error is it ok if I continue to use my hard drive?
As stated above, S.M.A.R.T. is designed to detect upcoming failures in the hard drive. While it is possible that the hard drive may not fail for several months, it is still inevitable that the hard drive will fail. It is ok to continue to use the hard drive, however, we highly recommend that if you are still under warranty that you consider getting the drive replaced before your warranty runs out.
Tip: Many users can also enable or disable the S.M.A.R.T detection through their CMOS setup.
1720 - smart hard drive detects imminent failure
This error message is related to S.M.A.R.T and is an indication of failure. See above recommendations for additional details.