Lenovo ThinkPad 380ED User's Guide for TP 380XD, TP 385XD - Page 182

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Troubleshooting Charts Other Problems Problem The computer locks or does not accept any input. The computer does not turn off with the power switch. The computer does not start from a diskette. Performance degrades when the computer gets hot during use. A memory shortage or memory error occurs. Cause or Action Your computer might lock when it enters suspend mode during a communication operation. You should disable the suspend timer when you are working on the network. When you turn on the computer 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, press the power shutdown switch using the tip of a ballpoint pen. If the suspend lamp 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, press the power shutdown switch using the tip of a ballpoint pen. Make sure that the startup sequence in Easy-Setup is set so that the computer boots from the diskette drive (see page 28). 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. If you are using DOS: 1. Use the DOS command MEM /C to review your DOS memory usage occasionally. 2. Unload any unnecessary drivers from the CONFIG.SYS file. (For example, unload printer drivers if you do not use a printer.) 3. Reconfigure the UMB (upper memory block) using the DEVICEHIGH statement. 4. Use the multiple configuration setup for DOS (refer to the documents supplied with DOS). If you are using Windows 3.11: 1. Try the same actions as described for DOS. 2. Unload any unnecessary programs from the WIN.INI file (for example, FUELWIN for AC operations.) 162 IBM ThinkPad 380XD/385XD User's Guide

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Troubleshooting Charts
Other Problems
Problem
Cause or Action
The computer locks or
does not accept any input.
Your computer might lock when it enters suspend mode during a
communication operation.
You should disable the suspend timer when you
are working on the network.
When you turn on the computer 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, press the power shutdown switch using the tip of a
ballpoint pen.
The computer does not
turn off with the power
switch.
If the suspend lamp 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, press the power shutdown switch using the tip of a
ballpoint pen.
The computer does not
start from a diskette.
Make sure that the startup sequence in Easy-Setup is set so that the computer
boots from the diskette drive (see page 28).
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.
A memory shortage or
memory error occurs.
If you are using DOS:
1. Use the DOS command
MEM /C
to review your DOS memory usage
occasionally.
2. Unload any unnecessary drivers from the CONFIG.SYS file.
(For
example, unload printer drivers if you do not use a printer.)
3. Reconfigure the UMB (upper memory block) using the
DEVICEHIGH
statement.
4. Use the multiple configuration setup for DOS (refer to the documents
supplied with DOS).
If you are using Windows 3.11:
1. Try the same actions as described for DOS.
2. Unload any unnecessary programs from the WIN.INI file (for example,
FUELWIN for AC operations.)
162
IBM ThinkPad 380XD/385XD User's Guide