TroubleshootingSymptom Charts/Hard Drive - 11

Hard Drive

Internal or external

1

Verify that SCSI loopback card is not attached.

hard drive does not

2

Verify that external drive is properly terminated.

operate

3

Replace hard drive.

 

4

Replace logic board. Retain customer’s SIMMs.

 

5

Replace hard drive.

Works with internal

1

Verify that SCSI device ID switch setting on external device

or external SCSI

 

is higher than 0. Also verify that ID switch setting on

device but does not

 

external SCSI device does not duplicate ID switch settings on

work with both

2

any other attached external SCSI devices.

 

Replace terminator on external SCSI device.

 

3

Replace SCSI select cable.

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Apple 500, 575, 577, 560, 550, 578 manual Hard Drive