Apple powermac 8500 series Servicehandbuch

 

 Troubleshooting

Symptom Charts/Floppy Drive 

 

 (Continued)

 

 - 19

 

Internal floppy drive 

runs continuously

1 Replace disk with known-good floppy disk.

2 Replace floppy drive cable.

3 Replace floppy drive.

4 Replace processor card.

5 Replace logic board. Retain customer's DIMMs.

MS-DOS drive does 

not recognize a disk 

formatted on a 1.4 MB 

drive

To read and write files with either MS-DOS or 1.4 MB drive, 

format all disks with MS-DOS drive first.