mReinstall your printer software.

mReset the parameter RAM. (See “The Computer Makes an Unusual Sound at Startup, or You See a ‘Sad Macintosh’ Icon,” in the section “Problems Starting Up the Computer” earlier in this chapter for instructions.)

SCSI equipment and SCSI disk mode

External SCSI equipment doesn’t work, or a hard disk icon does not appear on the desktop.

mYou may not be able to use password protection with your PowerBook in SCSI disk mode. Turn password protection off in the Password Security control panel.

mCheck 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.

mMake sure that you turn on SCSI equipment before you start up the PowerBook.

mCheck that each connected SCSI device has a unique ID number between 0 and 6.

mMake sure that SCSI cable terminators are correctly positioned. Follow the instructions in “Connecting SCSI Devices” in Chapter 4.

You can’t turn on the computer after connecting a SCSI device.

mTurn on the SCSI equipment first, and then turn on the computer.

mTry disconnecting the SCSI equipment to determine if the computer will start up. If not, see the beginning of this chapter.

When you start up using SCSI disk mode, the desktop appears.

When you use SCSI disk mode, the computer should display an icon with a number in it.

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Chapter 7

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Apple 3400 Series manual Scsi equipment and Scsi disk mode