Acer Aspire M1640, Service Manual

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20
System Utilities
The manufacturer or the dealer already configures most systems.
There is no need to run Setup when starting the computer unless
you get a Run Setup message.
The Setup program loads configuration values into the battery-backed
nonvolatile memory called CMOS RAM.
This memory area is not part of the system RAM.
NOTE: If you repeatedly receive Run Setup messages, the battery may be
bad/flat. In this case, the system cannot retain configuration values in CMOS.
Before you run Setup, make sure that you have saved all open files. The
system reboots immediately after you exit Setup.