Dell 4100/200 Troubleshooting the Diskette Drive Subsystem, Checking the Diskette Drive Subsystem

8.Turn off the system, disconnect it from AC power, and remove the computer cover.

9.Reinstall one of the expansion cards you removed in step 3, and repeat steps 4 and 5.

10.Run the System Set Test Group again. Do the tests complete successfully? Yes. Go to step 11.

No. Go to step 12.

11.Repeat steps 8, 9, and 10 for each of the remain- ing expansion cards you removed in step 3.

Have you reinstalled all of the expansion cards with- out encountering a test failure?

Yes. Go to step 12.

No. The expansion card is faulty. See Chapter 11, “Getting Help,” for instructions on obtaining tech- nical assistance.

12.Disconnect the keyboard and reboot the system. Does the system boot successfully?

Yes. Go to step 13. No. Go to step 14.

13.Swap the keyboard with a comparable working keyboard, and run the System Set Test Group again.

Do the tests complete successfully? Yes. You have fixed the problem. No. Go to step 14.

14.See Chapter 11, “Getting Help,” for instructions on obtaining technical assistance.

Troubleshooting the Diskette Drive Subsystem

If the monitor displays a system error message indicating a diskette drive problem during execution of either the

boot routine or the system diagnostics, the problem may be caused by any of the following conditions:

•The system configuration settings do not match the physical diskette subsystem configuration.

•The diskette drive cables are not properly connected or are faulty.

•An expansion card is interfering with proper drive operations.

•A diskette drive may be improperly configured.

•The diskette drive or tape drive is faulty.

•The computer’s power supply is not providing suffi- cient power for the drives.

•The computer’s diskette drive logic is faulty.

The troubleshooting procedures for the diskette drive subsystem are divided into the following subsections:

•“Checking the Diskette Drive Subsystem”

•“Troubleshooting the Diskette Drive Sub- system”

•“Troubleshooting a SCSI Tape Drive”

Before you begin the troubleshooting procedures, com- plete steps 1 and 2 in the next subsection, “Checking the Diskette Drive Subsystem,” to verify that the system con- figuration information is correct for the installed diskette drive(s).

If, after completing these steps, the system boots cor- rectly and the monitor no longer displays a system error message, the problem is resolved. If you continue to have problems, however, proceed with the appropriate diskette drive subsystem troubleshooting procedure.

Checking the Diskette Drive Subsystem

To verify that the diskette drive subsystem is operating properly, follow these steps:

1.Enter the System Setup program, and verify that the system is configured correctly for the DIS-

KETTE DRIVE A and DISKETTE DRIVE B categories.

See Chapter 4, “Using the System Setup Program,” in the system User’s Guide for instructions.

Checking Inside the Computer 7-15