Apple quadra.centris 650 Servicehandbuch

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 Troubleshooting
Symptom Charts/Hard Drive - 10
 
Hard Drive
 
Internal hard drive 
runs continuously
1 Replace SCSI data cable.
2 Replace internal hard drive.
3 Replace logic board. Retain customer’s SIMMs. 
Internal hard drive 
does not operate
1 Replace SCSI data cable.
2 Replace SCSI power cable.
3 Replace hard drive.
4 Replace logic board. Retain customer’s SIMMs.