Troubleshooting Charts
Other Problems
Problem Action
The computer locks or
does not accept any
input.
Your computer might lock when it enters suspend mode during a communi-
cation operation. Disable the Suspend Timer when you are working on the
network.
When you turn on the comptuer with OS/2 Warp installed, make sure no
compact disc (CD) is in the CD-ROM drive. If there is, remove the CD, turn off
the computer, and turn it on again.
To turn off the computer, push and hold the power switch for about five
seconds, then release it.
The computer does not
turn off with the power
switch.
If the suspend indicator is on and you are working under battery power, change
the battery to a fully charged one or change your power source to ac power.
If you still have a problem, push and hold the power switch for about five seconds,
then release it to turn off the computer. Restart the computer.
If the computer still does not turn off, remove all power sources (battery pack and
AC Adapter) from the computer; then reinstall the power sources and restart the
computer.
The computer does not
start from a diskette.
Make sure that the startup sequence in the BIOS Setup Utility is set so that the
comptuer starts up from the diskette drive (see “Startup” on page 29).
Performance degrades
when the computer gets
hot during use.
The processor speed might decrease under the following conditions:
Use in a hot environment
High-powered processing that requires high-power consumption
This is not a defect.
130 ThinkPad 390X User's Reference
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