Apple Macintosh PowerBook 1400 - Manual (Page 106)

SCSI equipment and SCSI disk mode
External SCSI equipment doesn’t work, or a hard disk icon does not appear on the
desktop.
m You cannot use password protection with your PowerBook in SCSI disk
mode. Turn password protection off in the Password Security control panel.
m Check that all cables are connected securely, that the devices are plugged
into working outlets, and that the devices are turned on.
IMPORTANT Make sure that all equipment is turned off before connecting or
disconnecting cables.
m Make sure that you turn on SCSI equipment before you start up the
PowerBook.
m Check that each connected SCSI device has a unique ID number
between 1 and 6.
m Make sure that SCSI cable terminators are correctly positioned. Follow the
instructions in “Connecting SCSI Devices” in Chapter 3.
I can’t turn on the computer after connecting a SCSI device.
m Turn on the SCSI equipment first, and then turn on the computer.
When I start up using SCSI disk mode, the desktop appears.
m You cannot use password protection with your PowerBook in SCSI disk
mode. Turn password protection off in the Password Security control panel.
m When you use SCSI disk mode, the computer should display an icon with a
number in it.
If the computer starts up normally, immediately press the Power key to shut
down (if you can) or press the reset button on the back panel to turn off the
computer. If you don’t, you might damage your information or equipment.
106 Chapter 6