Apple WS 9650 Manuale Utente

Pagina di 237
 
 Troubleshooting
Symptom Charts/Hard Drive - 19
 
4 If drive is not initialized, use Drive Setup to initialize.
5 Replace with known-good hard drive. 
6 If hard drive still doesn't work, switch back to original hard 
drive and replace logic board.
Works with internal 
or external SCSI 
devices but not with 
both
1 Verify there are no duplicate SCSI device addresses on a 
single SCSI bus. (Refer to Basics chapter for detailed 
explanation of SCSI IDs used in WS 9650.)
2 Replace terminator on external SCSI device.
3 Verify that SCSI device at end of internal SCSI data cable is 
only device terminated. In PM 8600 or 9600, last connector 
on Fast SCSI-2 cable attaches to rear internal hard drive, 
which is terminated. In WS 9650, Fast SCSI-2 cable should 
have terminator on last connector or last connector should be 
attached to terminated hard drive. On Ultra Wide SCSI-3 bus 
in WS 9650, internal rear drive is terminated and SCSI PCI 
card is auto-terminated. No other devices on the bus should 
be terminated. (Refer to Basics chapter for detailed