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Chapter 7. Troubleshooting and diagnostics
This chapter describes some basic troubleshooting and diagnostic programs. If your server problem is not
described here, see Chapter 9 “Help and service” on page 81
for additional troubleshooting resources.
This chapter provides information about the following topics:
• “Basic troubleshooting” on page 75
• “PC-Doctor for DOS” on page 76
Basic troubleshooting
The following tables provide information to help you troubleshoot your server problems.
Note: If you cannot correct the problem, have the server serviced. For a list of service and support telephone
numbers, refer to the Warranty and Support Information document at: http://www.lenovo.com/support/phone
General problems
The following table describes the general problems and suggested actions to correct detected problems.
Symptom Action
The server does not start when
you press the power switch.
Verify that:
• The power cord is correctly connected to the rear of the server and to a working
electrical outlet.
• If your server has a secondary power switch on the rear of the server, make sure
that it is switched on.
• The power indicator on the front of the server is on.
• The server voltage matches the voltage available at the electrical outlet for your
country or region.
The monitor screen is blank.
Verify that:
• The monitor signal cable is correctly connected to the monitor and to the
appropriate monitor connector on the server.
• The monitor power cord is correctly connected to the monitor and to a working
electrical outlet.
• The monitor is turned on and the brightness and contrast controls are set
correctly.
• The server voltage matches the voltage available at the electrical outlet for your
country or region.
• If your server has two monitor connectors, be sure to use the connector on
the graphics card.
The operating system does not
start.
Verify that:
• The startup sequence includes the device where the operating system resides.
Usually, the operating system is on the hard disk drive. For more information,
see “Selecting a startup device” on page 69
.
The server beeps multiple times
before the operating system
starts.
Verify that no keys are stuck.
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