Acer Aspire M5640 Service Guide for Aspire M1640 / M3640 / M5640 - Page 26

Chapter 2 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. 20