Apple 5320CD Manuale Utente

Pagina di 319
 
 Troubleshooting
Symptom Charts/System - 6
 
Flashing “?” 
appears at startup in 
system with vacant 
PDS and 
communications slots 
1 Diagnose hard drive with Disk First Aid included on Power 
Macintosh CD-ROM.
2 Perform repairs, and then go to step 4.
3 If repairs are impossible, back up drive, reformat with 
Drive Setup 1.0.3, and then go to step 4.
4 Update driver using Drive Setup 1.0.3.
5 Perform clean install of system software.
Flashing “?” 
appears at startup in 
system with version 
B logic board and 
card in PDS or 
communications 
slot 
 
Note:
 
  Version “B” logic boards display a “B” at the end of the 
serial number printed on the board near the communications 
port. (See figure on the next page.)
1 Verify that system software is version 7.5 or later.
2 If chip at logic board location U6 does not include picture of 
Texas and is p/n 343S0138-a, and there is no wire at U27 
on underside of board, replace logic board.