Lenovo ThinkPad 600 User's Reference Guide for TP 600 - Page 161

Problem, Cause or Action, example, unload printer drivers if you do not use a printer.

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Title: C79EGMST CreationDate: 02/10/98 09:24:42 Troubleshooting Charts Problem Performance degrades when the computer gets hot during use. A memory shortage or memory error occurs. Cause or Action 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.) Chapter 4. Solving Computer Problems 143

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Troubleshooting Charts
Problem
Cause or Action
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.)
Chapter 4.
Solving Computer Problems
143
Title: C79EGMST CreationDate: 02/10/98 09:24:42