Intergraph StudioZ GT RAX Setup Manual page 74

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Does not boot from drive A: (floppy disk drive) or other expected boot device
Reason
Corrupt boot disk, or boot disk does not have
correct boot utilities.
The boot sequence may be set to C, A, in which
case the machine will not boot from A if there
is an operating system on C.
The BIOS is corrupted.
Floppy disk drive is not recognized
Reason
BIOS is not configured properly.
Power cable is not attached.
Floppy data cable is not attached.
System hard disk drive is not recognized
Reason
Hard disk drive power cable not attached.
Hard disk drive SCSI cable not attached.
SCSI termination is enabled on the hard disk
drive you installed.
Some viruses cause the system to not
recognize hard disk drives.
Solution
Replace the bootable diskette with a known
working diskette.
Change the boot sequence.
Load a new BIOS to the system's flash
EPROM. See Chapter 5.
Solution
Configure the Floppy A and B parameters to the required
settings in BIOS Setup. Refer to Chapter 5.
Ensure the floppy drive power cable is properly attached.
Ensure the floppy data cable is properly attached to the
floppy drive and to the system board.
Solution
Open the base unit and ensure power cable is
properly attached. See the System Reference.
Open the base unit. Ensure the SCSI cable is
properly attached at both ends. See the System
Reference.
Disable the SCSI termination. See the
documentation with the hard disk drive.
Run a virus scan program that checks the Master
Boot Record. Clear any viruses detected by the
program.