
Cause Actions
The boot sector on the
start-up drive is corrupted. The drive must be
formatted, do the following:
1. Attempt to access and
recover (back-up) the
failing hard disk drive.
2. Using the operating
systems programs,
format the hard disk
drive.
3. Go to “Preparing the
hard disk drive for use”
on page 141.
The drive is defective. Replace the hard disk drive.
When to use the Low-Level  Format
program
 Notes 
1. The low-level format is  not available on all
diagnostic diskettes.
2. Before formatting the hard  disk drive, make a
back-up copy of the files on  the drive to be
formatted.
Use the Low-Level Format program:
When you are installing software that  requires a
low-level format
When you get recurring messages from  the test
programs directing you to run the  Low-Level Format
program on the hard disk
As a last resort before replacing  a hard disk drive
Preparing the hard disk drive  for use
When the Low-Level Format program is  finished, restore to
the hard disk all the files  that you previously backed up.
1. Partition the hard disk  for your operating system.
(The commands vary with the operating  system.
Refer to your operating-system manual for
instructions.)
2. Format the hard disk  using your operating system.
(The commands vary with the operating  system.
Refer to your operating-system manual for
instructions.)
3. Install the operating system.
You are now ready to restore  the files.
    IntelliStation - 6866 141