Symptom
Action
The keyboard does not
work. The computer
does not respond to the
keyboard.
Verify that:
v
The computer and monitor are turned on and the
brightness and contrast controls are set correctly.
v
The keyboard is securely connected to the keyboard
connector on the computer.
v
No keys are stuck.
If you cannot correct the problem, have the computer
serviced.
The mouse does not
work. The computer
does not respond to the
mouse.
Verify that:
v
The computer and monitor are turned on and the
brightness and contrast controls are set correctly.
v
The mouse is securely connected to the mouse connector
on the computer.
If you cannot correct the problem, have the computer
serviced.
The operating system
will not start.
Verify that:
v
There is no diskette in the diskette drive.
v
The startup sequence includes the device where the
operating system resides. Usually, the operating system is
on the hard disk.
During startup, look for the prompt to start the IBM Setup
Utility program. Press the function key that is specified.
Verify the startup sequence in the IBM Setup Utility
program.
If you cannot correct the problem, have the computer
serviced.
An error code is
displayed before the
operating system starts.
Write down the code number, and see “Error and beep
codes” on page 22.
The computer beeps
multiple times before the
operating system starts.
Verify that no keys are stuck down.
If you cannot correct the problem, have the computer
serviced.
IBM Enhanced Diagnostics
The IBM Enhanced Diagnostics program runs independently of the operating
system. You can use this program to test hardware components of your
computer. You can use this program when other methods are not available or
have not been successful in isolating a problem that is suspected to be
hardware related.
20
Quick Reference
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