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• “An option that was just installed does not work” on page 97
• “An option that previously worked does not work now” on page 97
An option that was just installed does not work
Symptom: An option that was just installed does not work.
Action: Verify that:
• The option is designed for your computer.
• You followed the installation instructions supplied with the option and the installation instructions provided
with your computer, and all option les (such as device drivers, if required) are installed correctly.
• You have not loosened other installed options or cables.
• If the option is an adapter, you have provided enough hardware resources for the adapter to function
correctly. See the documentation supplied with the adapter (as well as the documentation for any other
installed adapters) to determine the resources required for each adapter.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 101
for instructions). If you need technical assistance, see Chapter 12 “Getting information, help, and
service” on page 103.
An option that previously worked does not work now
Symptom: An option that previously worked does not work now.
Actions:
• Verify that all option hardware and cable connections are secure.
• If the option comes with its own test instructions, use those instructions to test the option.
• If the failing option is a SCSI option, verify that:
– The cables for all external SCSI options are connected correctly.
– The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly.
– All external SCSI options are turned on. External SCSI options must be turned on before the computer
is turned on. For more information, see your SCSI documentation.
• Verify that the option and any required device drivers are installed correctly.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 101 for instructions). If you need technical assistance, see Chapter 12 “Getting information, help, and
service” on page 103.
Performance and lockup problems
Poor performance and lockup problems can be a result of any of the following:
• “Insufcient free hard disk drive space” on page 97
• “Excessive number of fragmented les” on page 98
• “Insufcient memory” on page 99
Make a selection from the above list to nd out more about the corrective actions you can take.
Insufcient free hard disk drive space
Symptom: Insufcient free hard disk drive space
Chapter 11. Troubleshooting and diagnostics 97