Lenovo ThinkPad 390X User's Reference: ThinkPad 390X - Page 147

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Troubleshooting Charts Problem A memory shortage or memory error occurs. Action 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. Solving Computer Problems 131

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Troubleshooting Charts
Problem
Action
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 sup-
plied 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.
Solving Computer Problems
131