Solving Problems 17
m If that doesn’t solve your problem, shut down your computer again. Turn off and
disconnect all external equipment, except your keyboard and mouse. To determine which
piece of equipment may be causing the problem, reconnect one device, turn it on (if
necessary), and start up your computer. Continue reconnecting devices one at a time,
starting up, verifying the devices work, and shutting down until you determine which
device is causing the problem. Once you determine which device is causing the problem:
m There may be something wrong with the cables connecting the device. If possible,
borrow a cable that you know works with another similar device. Connect the cable to
the device, then connect the device to your computer. Start up your computer. If the
device works using the borrowed cable, then you need to replace the cable. Contact
the device manufacturer or an Apple-authorized service provider.
m Refer to the documentation that came with the device.
m Refer to the documentation that came with your computer to make sure you are
connecting the device properly.
Resolve SCSI ID Conflicts
If your computer uses SCSI (Small Computer System Interface) devices, make sure each
device has a unique ID number from 0 to 7. Some computers have two separate SCSI chains,
each with its own set of ID numbers.
Make sure that the SCSI chain is properly terminated. The last device in each SCSI chain
must be terminated. Your computer, which is the first SCSI device, is already terminated
inside.
See the documentation that came with your computer and SCSI equipment for specific
details on setting SCSI ID numbers and terminating SCSI devices.
Check RAM Disk Settings in the Memory Control Panel
Note: In most cases, you should leave the RAM disk turned off, unless you have a specific
need for it.
If you’re using a RAM disk and you see a disk corruption message, click Cancel to close the
message. Check the RAM disk settings in the Memory control panel to make sure that you
aren’t trying to create a RAM disk larger than the amount of available memory on your
computer or the amount of free space on your hard disk. Leave enough memory available for
use by your system software and any applications you open. Make sure there is also enough
free space on your hard disk. When you shut down your computer, the contents of the RAM
disk are copied to the hard disk.
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