Seagate MEDALIST 1080SL Installation Manual page 22

20 Medalist 1080sl SCSI Installation Guide, August 1995
The DOS utilities diskette may be corrupted. Try your backup
DOS diskette.
If you have DOS Version 4.0 or earlier, make the drive parti-
tions smaller.
Check for media defects at the beginning of the drive. Use a
third-party surface scan utility.
The FDISK error message, "No Fixed Disk Present," appears.
Check all cables.
Check the power supply specifications.
Make sure the drive spins up when you turn on the system.
In AT systems, check the drive type. The drive type must be
set to Not Installed or the drive-type values set to zero.
Check for I/O address conflicts.
During the DOS high-level format, the drive keeps retrying
hard errors and reporting the following message. "Attempt-
ing to recover allocation units. . ."
This is normal with DOS Version 4.0 or later.
DOS messages, "Disk Boot Failure," "Non-System Disk," or
"No ROM Basic - SYSTEM HALTED," appear.
Remove the diskette from the diskette drive.
Check all cables.
Use the same version of DOS throughout your system.
Reinstall the DOS system files using the DOS SYS utility.
Make sure the primary partition is active in FDISK.
Check for viruses.