Toshiba 960-809 Benutzerhandbuch

Troubleshooting Procedures

PORTEGE M780 Maintenance Manual (960-809)

[CONFIDENTIAL]

2-35

2.6 2.5” HDD Troubleshooting

To check if the 2.5” HDD is malfunctioning or not, follow the troubleshooting procedures
below as instructed.

Procedure 1:  Partition Check
Procedure 2:  Message Check
Procedure 3:  Format Check
Procedure 4:  Diagnostic Test Program Execution Check
Procedure 5:  Connector Check and Replacement Check

CAUTION: The contents of the hard disk will be erased when the 2.5”HDD

troubleshooting procedures are executed. Transfer the contents of the hard
disk to floppy disks or other storage drive(s). For the backup, refer to the
User’s Manual.

2.6.1 Procedure 1 Partition Check

Insert the Toshiba DOS system disk and start the computer. Perform the following checks:

Check 1 Input C: and press Enter. If you cannot change to drive C, go to Check 2. If you

can change to drive C, go to Procedure 2.

Check 2 Input FDISK and press Enter. Choose Display Partition Information from the

FDISK menu. If drive C is listed in the Display Partition Information, go to Check
3. If drive C is not listed, return to the FDISK menu and choose the option to
create a DOS partition or a logical DOS drive on drive C. If the problem still
occurs, go to Procedure 2.

Check 3 If drive C is listed as active in the FDISK menu, go to Check 4. If drive C is not

listed as active, return to the FDISK menu and choose the option to set the active
partition for drive C. Then go to Procedure 2.

Check 4 Remove the system disk from the FDD and reboot the computer. If the problem

still occurs, go to Procedure 2. Otherwise, the 2.5” HDD is operating normally.