IBM 628816U - PC 300 GL, User Manual

Page: 118 / 174

Memory problems
Memory problems Action
The amount of memory
displayed is less than the
amount of memory
installed. The amount of available memory shown might be
somewhat less than expected because of basic
input/output system (BIOS) shadowing in random
access memory (RAM), video takes 1 MB, and ACPI
and USB also can take up to 1 MB.
Verify that:
1. You have installed the correct type of DIMMs for
your computer. See “Working with memory” on
page 66 for instructions on adding DIMMs.
2. The DIMMs are properly installed and securely
connected.
3. If you added or removed memory, you saved the
new configuration before exiting the
Configuration/Setup Utility program.
If the problem persists, run the memory test from the
diagnostic program supplied with your computer. (See
“IBM Enhanced Diagnostics program” on page 108 for
further information.) The system might have detected
a bad DIMM and automatically reallocated memory to
enable your computer to continue to operate.
If you cannot correct the problem, have the computer
serviced.
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PC 300GL User Guide