Dell OptiPlex NX Diagnostics and Troubleshooting Guide (.pdf) - Page 81

adapter or a Dell Advanced SCSI Host DASH Bus

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3. Verify that any required SCSI device drivers are installed on the hard-disk drive and are configured correctly. If the computer system is using a built-in SCSI host adapter or a Dell Advanced SCSI Host (DASH) Bus Adapter card, see the SCSI Device Driver Installation and Configuration Guide for instructions on installing and configuring the SCSI device drivers. For any other type of SCSI host adapter card, see the documentation that accompanied the host adapter card. Are the drivers installed and configured correctly? Yes. The SCSI device drivers were installed or configured incorrectly or were corrupted. You have fixed the problem. No. Go to step 4. 4. Reinstall the tape backup software as instructed in the tape-backup software documentation. Is the problem resolved? Yes. The tape backup software was corrupted. You have fixed the problem. No. Go to step 5. 5. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources. Also, disconnect any telephone or telecommunication lines from the computer. 6. Remove the computer cover. CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions at the front of this guide. 7. Check the SCSI cable connections to the tape drive and to the SCSI host adapter connector. If the tape drive is an internal device, check the DC power cable connection to the tape drive. Are the cables firmly connected? Yes. Go to step 9. No. Go to step 8. 8. Reseat the cable connectors, replace the computer cover, reconnect the system to AC power, and turn it on. Is the problem resolved? Yes. You have fixed the problem. No. Go to step 9. 9. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources. Then remove the computer cover. 10. Remove the tape drive. Then verify that the tape drive is configured for a unique SCSI identification (ID) number and that the tape drive's termination is enabled or disabled as appropriate. See the documentation for the tape drive for instructions on selecting the SCSI ID and enabling or disabling termination. Is the tape drive configured correctly? Yes. Go to step 13. No. Go to step 11. 11. Reconfigure the tape drive's SCSI ID and termination settings as appropriate. Reinstall the tape drive, replace the computer cover, reconnect the system to AC power, and turn it on. Is the problem resolved? Yes. The tape drive was configured incorrectly. You have fixed the problem. No. Go to step 12. 12. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources. Then remove the computer cover. 13. Replace the SCSI cable that connects the tape drive to the SCSI host adapter connector. Checking Inside Your Computer 6-13

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Checking Inside Your Computer
6-13
3.
Verify that any required SCSI device drivers are
installed on the hard-disk drive and are config-
ured correctly.
If the computer system is using a built-in SCSI host
adapter or a Dell Advanced SCSI Host (DASH) Bus
Adapter card, see the
SCSI Device Driver Installa-
tion and Configuration Guide
for instructions on
installing and configuring the SCSI device drivers.
For any other type of SCSI host adapter card, see the
documentation that accompanied the host adapter
card.
Are the drivers installed and configured correctly?
Yes.
The SCSI device drivers were installed or con-
figured incorrectly or were corrupted. You have
fixed the problem.
No.
Go to step 4.
4.
Reinstall the tape backup software as instructed
in the tape-backup software documentation.
Is the problem resolved?
Yes.
The tape backup software was corrupted. You
have fixed the problem.
No.
Go to step 5.
5.
Turn off the system, including any attached
peripherals, and disconnect all the AC power
cables from their power sources. Also, disconnect
any telephone or telecommunication lines from
the computer.
6.
Remove the computer cover.
7.
Check the SCSI cable connections to the tape
drive and to the SCSI host adapter connector. If
the tape drive is an internal device, check the DC
power cable connection to the tape drive.
Are the cables firmly connected?
Yes.
Go to step 9.
No.
Go to step 8.
8.
Reseat the cable connectors, replace the computer
cover, reconnect the system to AC power, and
turn it on.
Is the problem resolved?
Yes.
You have fixed the problem.
No.
Go to step 9.
9.
Turn off the system, including any attached
peripherals, and disconnect all the AC power
cables from their power sources. Then remove the
computer cover.
10.
Remove the tape drive. Then verify that the tape
drive is configured for a unique SCSI identifica-
tion (ID) number and that the tape drive’s
termination is enabled or disabled as appropriate.
See the documentation for the tape drive for instruc-
tions on selecting the SCSI ID and enabling or
disabling termination.
Is the tape drive configured correctly?
Yes.
Go to step 13.
No.
Go to step 11.
11.
Reconfigure the tape drive’s SCSI ID and termi-
nation settings as appropriate. Reinstall the tape
drive, replace the computer cover, reconnect the
system to AC power, and turn it on.
Is the problem resolved?
Yes.
The tape drive was configured incorrectly. You
have fixed the problem.
No.
Go to step 12.
12.
Turn off the system, including any attached
peripherals, and disconnect all the AC power
cables from their power sources. Then remove the
computer cover.
13.
Replace the SCSI cable that connects the tape
drive to the SCSI host adapter connector.
CAUTION: See “Protecting Against Electro-
static Discharge” in the safety instructions at
the front of this guide.